Gy6 camshaft specifications. This cam is ideal for increasing low-end power.

Gy6 camshaft specifications. This A9 cam is ideal for increasing low-end power. The oil of camshaft oil is supplied through the cylinder head oil hole. A15), the more suited it is for low speed power production. Specifications: Includes the following Cam chain tensioner, Keylock, Phillip screw cap, and Cap O-ring. SHAFT Assy. Product Description GY6 PERFORMANCE CAMSHAFT FOR SCOOTERS WITH 150cc / 172cc / 180cc GY6 MOTORS OUR HOUSE BRAND THE SAME CAM WE WON MANY SCOOTER RACES AND CHAMPIONSHIPS WITH OVERLAP 76. However, the engine must be removed from the frame to maintain the cylinder head. You’ll need a set of 0. Ideal cam for scooters with strong mid-range power output. rollingwrenchdenver. 1mm Nov 22, 2013 · All times are GMT -4. Instead of spending money for costly repairs to a tired 150cc 4-stroke GY6 or waiting for the repair shop, simply swap in this high quality 150cc 4-stroke GY6 157QMJ gas scooter engine. American Owned and Operated. •& Description: Camshaft chain for GY6 125/150cc+ 4-stroke engines as well as GY6 150cc 4-stroke ZNEN engines commonly found in Bintelli, Gorilla Motor Works (GMW), and Puma scooters. It controls the intake and exhaust valve to open and close at the correct time. Low Prices, Large Inventory, Fast Shipping! Customer Service Available @ 618-529-2593 8:00am-4:00pm CST Monday thru Friday. 20mm 34 TEETH BEARING 16002C3 A8 = HA A9 = HB A10 = HC A11 = HD A12 = HE A13 = HF A14 = HG This A9 Camshaft is a quick and easy upgrade for your 50cc to 100cc Chinese or Taiwanese scooter. We worked with Taida’s machine shop to come up with the perfect GY6 performance camshaft! This is the “ProBld Performance Camshaft”. (Highest Torque) Hoca High Angle A14 Performance Camshaft for 150cc and 125cc GY6 4-stroke engines. Scooter rocker arm assembly includes camshaft holder, camshaft stopper plate, rocker arms, rocker arm shaft (inlet), rocker arm shaft (outlet), rocker arms assembly, valve adjusting tappet, and valve adjusting nuts. IT OFFERS MORE POWER AT THE BEGINNING AND MIDDLE OF YOUR RUN. 8mm• Sprocket Teeth: 34•&n Performance Camshaft designed specifically for the GY6 Engine. T-100 is a medium version camshaft which offers great improvement at low and middle RPM, meaning great take-off power and mid-way speed! Suitable for GY6 125/150cc scooters, quads, etc. This camshaft holder & rocker arm assembly is engineered for GY6 125cc150cc engines, matching 152QMI and 157QMJ specifications. There are variations in some engines (like GY6-B or P coded versions), and I d The A11 camshaft for GY6 125 and 150cc engines is designed for enhanced low and midrange power that buggy owners are looking for. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your large View and Download SCOOTDAWG GY6 owner's manual online. Ignition is by capacitor discharge ignition (CDI), with a magnetic trigger on the flywheel. This camshaft is an easy install - simply replace your existing camshaft with this one! NCY Performance Camshaft A8 designed specifically for the GY6 Engine. SYST EM (INCL UDING RIGHT CASÉ), OIL PUMP, FÍLTERAÑD FILTERCOVER 12. We’ll dissect the engine’s specifications, configurations, and compatibility RDLN Performance A9 Camshaft for GY6 125cc, 150cc, 170cc scooters. May 24, 2025 · The GY6 engine, a staple in the world of scooters and small vehicles, has gained significant popularity for its reliability and versatility. 3 SHFTING DRUM POSITIONNG BOLT N07ZLF DRAIN PLUG M12X1. • 1x Cam Chain 46 (92) links• Made by Kymco• Fit Intake Studs: M6 / Nuts: M6 / Socket: 8mm• Fit Exhaust Studs: M8 / Nuts: M8 / Socket: 10mm• Fit Cam Chain Tensioner This high quality part is the high performance camshaft for 50cc, 125cc, and 150cc GY6 Engines from NCY. This cam is ideal for increasing low-end power. A camshaft chain tensioner, also known as a camshaft chain regulator, is used to adjust the timing chain tension on the 50cc GY6 139QMB engine. Description: NCY Performance Camshaft A8 designed specifically for the GY6 Engine. Fuel metering is by a single constant-velocity style sidedraft carburetor, [2] typically a Keihin CVK clone or similar. 75/26. • Description: TFC Camshaft A8 2V 26. Wear to the camshaft will affect engine performance and cause excessive noise. The photographs in this booklet are installing an 80cc bore kit in a 50cc GY6. 00 ) FOR GY6 SCOOTERS This is the manual that should have come with your scooter! Jan 31, 2025 · In this comprehensive guide, we will explore the essentials of the GY6 engine, specifically focusing on selecting the correct big bore kit. High-strength aluminum alloy casting with T6 heat treatment enhances structural rigidity. Start by getting familiar with your valve and rocker assemblies. 02 +$2. The cam is ideal for increasing low end power. 1mm Exhaust May 25, 2015 · Buy Glixal ATKS-029 GY6 50cc 100cc High Performance A9 Camshaft 139QMB 139QMA Scooter Moped ATV: Camshafts - Amazon. OUTPUT SHAFT SHIFTING Assy. Specifications:• Color Brown (dark)• Overall Length: 65mm• Number of Splines: 32• Fit 54mm Stud Spacing (A-Block)• &nbs Description: GY6 125/150 camshaft 2 Valve. SSP-G GY6 PERFORMANCE A8 CAMSHAFT FOR SCOOTERS WITH 150cc GY6 MOTORS INTAKE LOBE DIAMETER AT ITS GREATEST: 25. 90mm EXHAUST LOBE DIAMETER AT ITS GREATEST: 25. Best acceleration/top speed. Are you sure the timing chain wasn't off by a tooth or something? Product Description HIGH PERFORMANCE CAM FOR 139QMB ENGINE. 0mm (HOWHIT 150cc) Bore Size: 57. Needed with big bore kits 6mm spacer, extended cylinder height, over-sized cylinder head 4-valves. Special tools may be required and all engine parts should be cleaned and lubricated during repairs. Rigorously tested to ensure proper cylinder head integration. 0 1 ratings All from verified purchases All ratings Camshaft GY6 Specifications Application: Engine Parts Type: Camshaft GY6 Quantity: A class Material: Metal Size: Standard size OEM: Accept More Items: Electronic Parts, Engine Parts, Iron Parts, Plastic Parts, Accessories. CRANKCASE AND CRANKSHAFT 10. • 2x Valve Guide Set L: 31mm• Fit Rocker Arm Assembly: 54mm, 57mm, 64mm, 69mm / Feeler Gauge: . 4) ELECTRICAL UPGRADES for 150cc GY6 ENGINES: Advance ignition timing. . It consists of several key components, including a piston, cylinder, crankshaft, camshaft, valves, carburetor or fuel injection system, ignition system, and exhaust. Originally developed by Honda in the 1980s, this engine has undergone various modifications and adaptations over the decades, establishing itself as a staple in the scooter and small vehicle market. Description: High-Performance SSP-G Camshaft A12 2-Valve designed specifically for the GY6 Engine. 2 - LOBE GREATNESS: 25. Camshafts are marked with letter combinations which can be cross-referenced below: Apr 21, 2025 · Looking for a comprehensive guide to the GY6 motor? Learn about this reliable scooter engine's specs, performance, and maintenance. Head Cover, Head & Valves Assembly, Cylinder, Piston, Timing & Crank Assembly, CVT Belt Cover & Assembly, Variator Pulley Assembly, Clutch & Rear Pulley Assembly, Starting Motor & Starter Gear Assembly, Stator & Cooling Fan Assembly, Crankcase Cover - Right, Oil Pump Assembly, Crankcase - Right, Gearcase Assembly - Left, Crankcase Description: Camshaft chain for GY6 125/150cc+ 4-stroke engines as well as GY6 150cc 4-stroke ZNEN engines commonly found in Bintelli, Gorilla Motor Works (GMW), and Puma scooters. Replace standard lower cam chain guide 228. Type 9 HP camshaft for all 150cc Go-karts/ Scooters and ATV. 25mm Exhaust Lobe Sep 19, 2011 · 139QMB (GY6 50) Displacement Chart Bore Do you need a replacement cam chain, or an even longer one for your stroker crank? This cam chain is made for all GY6 engines. Restore your engine’s top-end performance with this Camshaft Assembly and Rocker Arm Kit for GY6 150cc 4-Stroke Engines. Only use genuine replacement parts and recommended lubricants to ensure proper performance. 79mm 34 TEETH BEARING 16002C3 A8 = HA A9 = HB A10 = HC A11 = HD A12 = HE A13 = HF A14 = HG The GY6 engine design is a four-stroke single-cylinder in a near-horizontal orientation that is used on a number of small motorcycles or scooters made in Taiwan, China, and other southeast Asian countries. with a displacement s Taida Extended 48 (96) Links Cam Chain for GY6 205cc-232cc. 95mm Exhaust Lobe Diameter at its Greatest: 25. 00 DEGREES INTAKE DURATION 279. 4/6. 0 2 ratings All from verified purchases Need a good, NEW GY6 engine for your swap? This is a great engine to start with! This is a standard GY6 Long Case engine, and is compatible with not only our mounts, but pretty much every other aftermarket mount for a GY6 engine into a Honda Ruckus. CAMSHAFT / TIMING CHAIN FOR 150cc WITH 8. GY6 Brake Shoe Cam aka Rear Brake Camshaft for GY6 125/150cc+ engine based scooters. 8mm• Sprocket Teeth: 34•&n Complete OEM GY6 125/150 camshaft, ideal for scooters with a strong mid range power output. Specifications: Include the following Valve guide set. NCY PERFORMANCE CAMSHAFT FOR 150CC, 172CC, 180CC, GY6 ENGINES PERFORMANCE CAMSHAFT DESIGNED SPECIFICALLY FOR THE GY6 ENGINE THIS CAM IS IDEAL FOR INCREASING LOW END POWER. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger Product Description TAIDA PERFORMANE GY6 T-100 CAMSHAFT (2V) THIS T-100 CAMSHAFT IS A GREAT ADDITION TO YOUR BIG BORE KIT. Aug 30, 2007 · Racing Cam shaft for GY6 ATV, GO KART, SCOOTERS, AND SMALL MOTORCYCLES. 8mm 34 Teeth Bearing 16002C3 Beef up your power with racing camshaft. TIMING CHAIN AND TENSIOÑER 11. Lobe lift is usually specified in the grind number or listed separately in the camshaft’s specifications. Specifications Camshaft Stopper Plate for 150cc and 125cc GY6 4-stroke engines and 150cc GY6 4-stroke ZNEN engines commonly found in Bintelli, Gorilla Motor Works (GMW) and Puma scooters. May 25, 2015 · Glixal GY6 125cc 150cc 160cc 180cc High Performance Racing Camshaft for 152QMI 157QMJ Based Engine Scooter Moped ATV Go-Kart (A9) May 1, 2014 · hi !!! I've been looking on ebay a improved camshaft, but I see different types, from a8 to a13 but do not understand the differences between these, the only I want is a little more output powe View and Download Tank GY6 service manual online. 2mm EXHAUST LOBE 26 Look for something to read to know your GY6 engine scooter better? This is the ultimate guide for you! Check this out and let us hear you! Some of the oil goes into the big end of the connecting rod and splashes on the cylinder wall and the small end of the connecting rod; the rest goes through some oil passages, such as the shaft neck of the camshaft, and splashes on the cam rockshaft and cam chain. This information is tailored for enthusiasts with 125cc or 150cc GY6 engines found in scooters, buggies, ATVs, or small motorcycles. The A9 camshaft is the most highly recommended performance camshaft for the 139QMB and GY6 engines. Great addition when upgrading cylinder and large valve head for Camshaft for GY6, 150cc Engine -This camshaft is compatible with many GY6 150cc go karts, scooters, & ATVs. Jan 19, 2020 · GY6 torque settings Exhaust manifold nuts 10-14Nm Exhaust mounting bolts 30-14Nm Engine mounting nuts 45-50Nm Oil drain bolt 11-15Nm Oil filter screen cap 10-20 Nm Spark plug 10 -14Nm Crank case bolts 8-12Nm Cylinder head bolts / nuts 18Nm-22Nm Variator center nut 35-40 Nm 49cc gy6 149cc gy6 40-60NM Clutch assembly Explore the detailed 150cc GY6 parts diagram to understand the components and assembly of your scooter engine, ensuring better maintenance and repairs. Original Parts For Scooters SKU 164-40 Specifications: Intake Lobe at its Greatest: 26mm Exhaust Lobe at its Greatest: 25. com Belt video: What size scooter belt do I need • What size scooter belt do I need If you are confused what engine you have in your machine, this video should This camshaft stopper plate is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152/157 and 150cc GY6 QMJ152/157 engines. This is a super easy way to bump your power! This NCY Performance A8 Camshaft is designed specifically for the GY6 engine and is ideal for increasing low-end power. CYLINDER HEAD HOOD 2 CYLINDER HEADANDVALVE 3. ELETRIC STARTER 8. Specifications:Include the following Cam chain. This camshaft is the most popular camshaft used when doing upgrades for power take off. 2. Needed with big bore kits 6mm spacer, extended cylinder height, over-sized cylinder head 4-valve, and/or in most cases where 94 or 96 link cha Camshaft chain tensioner for 50cc GY6 139QMB engines. Clean the oil hole prior to assembling the cylinder head. 004in / . with TAIDA 232cc LONG CASE (67mm) CLASS B BLOCK (57mm SPACING) COMPLETE ENGINE *4 VALVE* **BUILT BY THE GY6 STORE** TAIDA MODEL 8200 STROKER CRANKSHAFT CAMSHAFT *T-300* TIMING CHAIN *96* CAM COVER WITH GASKET ROCKER Jan 12, 2014 · Easy GY6 Cam Timing Guide Top Dead Center refers to the piston being at the very top of its travel in the cylinder. Not suitable for standard Kymco cylinder heads! Description: High-Performance SSP-G Camshaft A12 2-Valve designed specifically for the GY6 Engine. 50CC-150CC Engine. T-300 is a higher rev version camshaft which offers great improvement at high RPM, meaning most power at the tail end! Suitable for GY6 125/150cc scooters, quads, etc. ENGINE AND ADJUSTMENT 1. Be sure to time the camshaft properly to TDC at this point, or you can run into major valve and piston damage on your first start up. • Intake Lobe at its Greatest: 26mm • Exhaust Lobe at its Greatest: 25. Lobe duration is measured in degrees of crankshaft rotation and indicates the angular span during which the cam lobe opens the valve. Loosen the tappet locking nut on the top of the tappet and turn the tappet out several turns. You can do this by rotating the variator in the CVT transmission counter clockwise by hand until the holes line up Jul 3, 2014 · A detailed explanation of engine displacement and the relationship of "bore x stroke" to the power production of your engine. GY6 Engine Diagram - knowing what gy6 engine parts go where is a good start. This complete top-end timing package includes a precision-machined camshaft and a matched set of rocker arms, making it perfect for rebuilds, upgrades, or routine maintenance. 92mm Exhaust lobe height: 26. The air inlet cam, the exhaust cam, and the cam journal are on the shaft. Taida Racing Camshaft (6. The increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displacement cylinder, big valve head, or performance exhaust. Description: Taida Cam Chain Guide-A (lower-extended cam chain rail) support for GY6 205cc-232cc+. Not su Description: Camshaft A9 2V Performance for GY6 Engine. 4 - LOBE GREATNESS: 25. INTAKE LIFT: 19. GY6 engine pdf manual download. 3/6. RDLN's Performance A10 Camshaft for GY6 125-200cc scooters increases horsepower and top-end performance by changing valve timing, allowing you to dial in the air/fuel mix. Easy to understand the GY6 Engine Diagram layout complete with cross-reference numbers. Intake lobe height: 26. 15mm ± 0. High-Performance SSP-G Camshaft A12 2-Valve designed specifically for the GY6 Engine. May 25, 2025 · GY6 Scooters: The Ultimate Guide to Understanding GY6 Engines When it comes to scooters, few engines are as widely recognized and utilized as the GY6 engine. • Description: GY6 Brake Shoe Cam aka Rear Brake Camshaft for GY6 125/150cc+ engine based scooters. 4. —-More than 100 kinds of category and 10,000 items. It has great low end and mid range torque! This is the perfect combo with our big bore kits. Otherwise known as “TDC”. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displacement cylinder, big valve head, or The GY6 Cam Timing Chain (90 Links) is designed for GY6 engines. Performance Cam The cam shaft controls the opening and closing of the valves. In this comprehensive guide, we will Our BDX performance camshafts will change the power profile of your GY6 engine. com FREE DELIVERY possible on eligible purchases Description: GY6 Brake Shoe Cam aka Rear Brake Camshaft for GY6 125/150cc+ engine based scooters. SHIFTING FORK UTCH SHIFT SHAFT CLUTCH SHIFT SHAFT Assy. 6mm to 241. This A8 cam is ideal for increasing low-end power. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displacement cylinder, bi The rocker arm and the camshaft can be serviced without removing the engine. 45mm Teeth: 34 Hoca High Angle A9 Performance Camshaft for 150cc and 125cc GY6 4-stroke engines. 82mm. • 1x Cam Chain (cho 2-29 2-03 2-35 2-37 2-39 GEAR coup. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with GY6 big bore 5X Cam Shaft for 125cc 150cc Gy6 Scooter Moped Atv 152qmi 157qmj Camshaft for Jonway Znen Roketa Sunl Jcl Now $40. The A12 camshaft for GY6 125 and 150cc engines is designed for enhanced low and midrange power that buggy owners are looking for. Please check the dimensions on the Specs tab to see if this is the correct camshaft chain tensioner for your Chinese built 50cc GY6 139QMB engine. • The 1 The following is a general guide for installing a big bore kit OR rebuilding the GY6 type engine. With 90 links, this timing chain ensures accurate synchronization between the camshaft and crankshaft, vital for optimal engine performance and efficiency. TRANSMISSION 6. 78mm 34 TEETH BEARING 16002C3 A8 = HA A9 = HB A10 = HC A11 = HD A12 = HE A13 = HF A14 = HG Performance Camshaft designed specifically for the GY6 Engine. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displacement cylinder, big valve head, or performance exhaust. 0 1 Review ౹ 15 sold Color: 1pcs Customer Reviews (1) Specifications Description Store More to love Reviews | 5. Specifications:• Color Brown (dark)• Overall Length: 65mm• Number of Splines: 32• Fit 54mm Stud Spacing (A-Block)• &nbs Jan 12, 2014 · GY6 Camshaft Installation Guide Installing a new performance camshaft is about a 45 minute job, and the engine doesn’t need to be removed. Weird, I've been running an A9 cam with 50mm BBK and 69mm valves for over a year now with no problems. NIBBI GY6 Racing Camshaft High Angle Performance A12 16002/P63 Cam For Motorcycle GY6 125cc 150cc Engine Scooter 5. 3) for sports and racing cylinders. REAR TRANSMISSION SYSTEM Description: Camshaft chain for GY6 125/150cc+ 4-stroke engines as well as GY6 150cc 4-stroke ZNEN engines commonly found in Bintelli, Gorilla Motor Works (GMW), and Puma scooters. Specifications:• Color Brown (dark)• Overall Length: 65mm• Number of Splines: 32• Fit 54mm Stud Spacing (A-Block)• &nbs 150cc+Gy6+QMJ157+Scooter+Repair+and+Service+Manual - Free download as PDF File (. Some popular model numbers are 152QMI, 157QMJ and 161QMK and of Jan 16, 2020 · FOR PARTS: www. 4mm RDLN'S PERFORMANCE A9 CAMSHAFT FOR GY6 50-100CC SCOOTERS INCREASES HORSEPOWER AND TOP-END PERFORMANCE BY CHANGING VALVE TIMING, ALLOWING YOU TO DIAL IN THE AIR/FUEL MIX. This performance camshaft altering the timing, lift, and duration of valve opening and closing, enhancing both power output and fuel efficiency through optimization of the combustion process. pdf) or read online for free. 7mm EXHAUST LIFE: 19. Only TFC Camshaft A8 2V 26. 00 Description: Camshaft A9 2V Performance for GY6 Engine. We offer camshafts A9 - A15. CAMSHAFT The camshaft is a main driving unit of the valve train. Optimized oil passages ensure effective lubrication at high RPM. WITH ITS INCREASED LEADING SLOPE AND LATER INTAKE VALVE OPENING MAKES THIS THE PERFECT UPGRADE TO GO ALONG WITH YOUR LARGER DISPLACEMENT CYLINDER, BIG VALVE HEAD, OR PERFORMANCE EXHAUST INTAKE LOBE 26. Complete engine assembly, long crankcase version is the top of the line aftermarket replacement engine available in the marketplace. 89 $50. Not su Description: GY6 125/150 camshaft 2 Valve. Product Specs:These will work on the 1 GY6 49cc-100cc (QMB139), Parts Fit Most Chinese, 49-80cc Scooters High Performance Parts 49 - 100cc GY6-QMB Scooters Air Box - Fuel Belt - Clutch - Variator Taida Cam Chain Guide-C (lower-extended cam chain rail) support for GY6 205cc-232cc+. Description: GY6 125/150 camshaft 2 Valve. GY6 Engine 54mm Stud Spacing 150cc 4-Stroke longcase Gas Engine with automatic CVT transmission is the top of the line aftermarket replacement engine most commonly found in Chinese scooters. Replace standard upper cam chain guide 228. This cam is ideal for increasing low end power. 99 (You save $2. 005in / Socket: 9mm• Fit Valve Springs: 2V / Keepers: 2V . This position is important when installing a new camshaft, because the cam must be set with the crankshaft at TDC. This complete, brand new replacement 150cc short case 4-stroke GY6 157QMJ Chinese built engine is the perfect time and money saver. 004″ and 0. 5 WASHER 12 BOLT 12 WASHER 6 DOWEL PIN lox" ADJUST WASHER 15 RDLN's Performance A8 Camshaft for GY6 150cc scooters increases horsepower and top-end performance by changing valve timing, allowing you to dial in the air/fuel mix. 8mm Number of Teeth: 34 Compatibility: 157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes: NIBBI Motorcycle GY6 125cc 150cc Camshaft Racing A12 16002/P63 Cams Off Road Motocross Scooter Part 3. Starting from the top, install the timing chain over the cam gear. Specifications: Include the following Camshaft. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displacement cylinder, Description: Cam Chain Tensioner for GY6 125/150cc 4-stroke engines as well as GY6 150cc 4-stroke ZNEN engines commonly found in Bintelli, Gorilla Motor Works (GMW), and Puma scooters. 25) for sports and racing cylinders. Aug 7, 2024 · What to know The BCD is typically stamped on the camshaft journal or indicated in the technical specifications. Sep 6, 2012 · Share Thread Go to Previous Thread Next Thread Please make a selection first new « Prev 1 Next » millsc Great Big Guru Dawg tried it, been there done that save some money Posts: 2,958 is a9 cam worth it Sept 6, 2012 21:39:52 GMT -5 Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by millsc on Sept 6, 2012 21:39:52 GMT -5 plan to buy a a9 cam is it worth it will i gain This is a video explain the differences between what is called A-Case and B-Case GY6 Engines. Performance Torque Spring Our Performance 2000 RPM Torque Spring for 50cc QMB139 GY6 4-stroke engine is designed to provide varying pressure to the sliding variator plate for different acceleration purposes and tuning. If the camshaft is off by a tooth, the engine will lack power and risks damage to the piston and valves. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displacement cylinder, big valve head, or pe Rolling Wrench DUUDES!!! This camshaft has history. Description: Taida Extended 46 (92) Links Cam Chain for GY6 180cc-191cc. Hoca High Angle A9 Performance Camshaft for 150cc and 125cc GY6 4-stroke engines. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displaceme This cam is ideal for increasing low-end power. 8mm• Sprocket Teeth: 34•&n G- Valve Guide Set (139QMB, GY6) Description: Valve Guide Set for 139QMB 49/50cc+ and GY6 125/150cc+ 2-Valve. 99 Now: $12. Description: Camshaft chain for GY6 125/150cc+ 4-stroke engines as well as GY6 150cc 4-stroke ZNEN engines commonly found in Bintelli, Gorilla Motor Works (GMW), and Puma scooters. Specifications: Include the following Cam chain. Description: GY6 Brake Shoe Cam aka Rear Brake Camshaft for GY6 125/150cc+ engine based scooters. 5mm Kit (155cc) – No machining needed 61mm Kit (170cc) – Machine cases to 65. Please the select number of links from the menu. USE THIS CAMSHAFT WHEN UPGRADING CYLINDER AND HEAD TO GET THE MOST PERFORMANCE FROM YOUR NEW 72CC OR 82CC KIT INTAKE LOBE 25. High-Performance Koso Camshaft A12 2-Valve designed specifically for the GY6 Engine. 2mm STROKER (48 LINK) GY6 STORE Was: $14. 8 - LOBE GREATNESS: 26. Most guys want the extra power, but aren’t sure how to go about actually installing that mouth-watering 175cc or 180cc kit. The lubrication oil that falls back into the oil groove can be recircu-lated. There are different number codes for each type of camshaft. Otherwise known Naraku Camshaft A14 2-Valve Performance designed specifically for the GY6 Engine. Chinese150cc Go-kart and Scooter. 0 2 Reviews ౹ 12 sold Color: GY6 Cam Customer Reviews (2) Specifications Description Store More to love Reviews | 3. - 45/90 Link- 46/92 Link- 47/94 Link RDLN's Performance A10 Camshaft for GY6 125-200cc scooters increases horsepower and top-end performance by changing valve timing, allowing you to dial in the air/fuel mix. STEP 1: Align Flywheel Timing Mark and Index Search the Jun 10, 2024 · Swapping an engine's camshaft for better performance is a practice that goes back to the earliest days of racing and hot rodding. #6 on Diagram – Camshaft stopper plate for150cc and 125cc GY6 4-stroke engines. TIMING CHAIN ASSEMBLY FOR SCOOTERS WITH 150cc GY6 MOTORS KIT COMES WITH CAM TIMING CHAIN (45 LINK / 90 PIN) CHAIN TENSIONER GUIDE SET CAM TENSIONER AND THE HARDWARE YOU NEED FITS MOST CHINESE SCOOTERS WITH Description: Camshaft chain for GY6 125/150cc+ 4-stroke engines as well as GY6 150cc 4-stroke ZNEN engines commonly found in Bintelli, Gorilla Motor Works (GMW), and Puma scooters. This camshaft is an easy install - simply replace your existing camshaft with this one! Be sure to have the engine at Top Dead Center (TDC) when removing the old camshaft and install this one in the same position. Jan 13, 2014 · “How do I machine my engine cases for the big bore kit?” It’s the most common question we get about GY6 Big Bore Kits. Displacement calculator included at the bottom! GY6 Engine Size Calculator Bore Size: 57. Hoca A14 Camshaft for 125cc - 150cc GY6 ATVs, Go Karts, and Scooters SPECIFICATIONS: Intake Lobe Diameter at its Greatest: 25. 3mm. GEAR BOX COVER GASKET GEAR Box AIR PIPE GEAR Box AIR NOZZLE STEEL BALL DRUM SPRING WASHER 149xnx1. 2mm EXHAUST LIFE: 19. • Buy A9 Racing Cam - Performance Camshaft - 139QMB and GY6 Scooter Engine- 50cc-100cc at Walmart. GY6 scooter pdf manual download. 8mm• Sprocket Teeth: 34•&n. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your large Description: NCY Performance Camshaft A8 designed specifically for the GY6 Engine. CREATS A HIGH LIFT SO THAT MEANS MORE POWER. Reinstall the cam tower back onto the cylinder studs. a noticeable gain in performance, greater top speed, and more power at higher RPM’s. Specifications: Fitted with Premium Bearings Intake Lobe: 27. Jan 12, 2014 · Reassembly Grab your new camshaft and begin assembling in the reverse order. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displacement cylinder, Product Description TAIDA PERFORMANCE GY6 MODEL T-300 CAMSHAFT (2V) HIGH REV FOR GY6 205cc - 232cc MOTORS THIS T-300 CAMSHAFT IS A GREAT ADDITION TO YOUR BIG BORE KIT. These camshafts HOCA GY6 PERFORMANCE A9 CAMSHAFT FOR SCOOTERS WITH 150cc GY6 MOTORS INTAKE LOBE DIAMETER AT ITS GREATEST: 26. Most of the power from this product is gained in the low and mid-ranges. How to install a big bore kit on 4 stroke GY6 scooter engines including 50cc 139QMB and 150cc 157QMJ scooter engines. —-Always control the quality though our professional technology. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larger displacement cylinder, big valve head Camshaft - For better climbing power, use low-end torque. 075 Your home for Lance, SYM, Kymco, Genuine Scooter, Minarelli, GY6, and 139QMB Parts and Accessories. • . Increases horsepower by changing valve timing which allows more fuel & air to get into cylinder. 8mm Taida Racing Camshaft (6. 005″ feeler gauges, and a 9mm wrench. AIR AIR FOIL . Generally speaking, the higher the number (e. With its increased leading slope and later intake valve opening makes this the perfect upgrade to go along with your larg Replacement Performance Racing A9 GY6 Camshaft. Specification: Intake Lobe 26. 5mm. . Jan 12, 2014 · How-to: Adjust your Valves If you’ve just replaced the camshaft, make sure it’s properly timed. We will clarify the distinctions between various kits and help you avoid common mistakes in your selection process. com GY6 Engine Diagram - knowing what gy6 engine parts go where is a good start. However, a common question arises: Are All GY6 Engines The Same? This article delves into the nuances of GY6 engines, exploring their variations and what sets them apart. CYLINDERANDPISTON KICKS TARTER LËFTCOVER) 5. 139QMB 50mm Stud Spacing 49cc 4-Stroke longcase Engine. THIS CAM IF FOR HIGH RPM / REV MEANING MORE POWER AT THE END OF A RUN INTAKE LIFT: 19. Jun 1, 2005 · Here are some useful information about everything you will need to know about a given camshaft, and it will perform in an engine combo, only in Mopar Muscle Magazine Rotate the camshaft until the big hole in the sprocket end points straight out of the top of the engine and the two smaller holes are lined up with the flat plane of the cylinder head. Specifications – Cut Diameter and Tolerances 58. The lower the number, the better it is for power at higher speeds. A12 Camshaft GY6 125cc 150cc - High Performance. The time now is 12:42 PM. These camshafts feature a longer valve opening duration and higher lobes for further opening. The GY6 single is forced-air-cooled, with a chain-driven overhead camshaft and a crossflow hemi cylinder head. Click here for high performance camshafts. g. This service manual provides technical tips and maintenance instructions for repairing a scooter. SKU: HS03434-0 Category: Engine and Parts Tags: 50cc camshaft, camshaft Brand: AGV Scooter Parts, Baja Scooter Parts, CFMoto Scooter Parts, Coolster Scooter Parts, Genuine Scooter Company Parts, Honda Scooter Parts, Hyosung Scooter Parts, Jonway Scooter Parts, Peace Sports Scooter Parts, TaoTao Parts, Twist n Go Parts, Vespa Parts Jul 19, 2016 · This thread is full of all sorts of specifications for the most common Chinese GY6 125-150cc engines. Another way that people try to increase performance of a scooter engine is to increase ignition advance. 6mm to 236. GEAR Box COVER DRIVE SHAFT REVERSE SHAFT Assy. Jan 12, 2014 · Top Dead Center refers to the piston being at the very top of its travel in the cylinder. Jan 24, 2025 · A GY6 engine is a four-stroke, single-cylinder internal combustion engine that is commonly used in scooters and small motorcycles. 8mm• Sprocket Teeth: 34• Fit Cylinder Stud Nuts: M8 / Washers: M8 / SSP-G GY6 PERFORMANCE A12 CAMSHAFT FOR SCOOTERS WITH 150cc GY6 MOTORS INTAKE LOBE DIAMETER AT ITS GREATEST: 27mm EXHAUST LOBE DIAMETER AT ITS GREATEST: 27. (Your camshaft may have lines instead of smaller holes, but they need to line up the same way). Complete engine diagram for the 139QMB 49cc Scooter Engine. 35 Performance for the GY6 125/150cc 4-stroke Engine. 00 shipping 5X Cam Shaft for 125cc 150cc Gy6 Scooter Moped Atv 152qmi 157qmj Camshaft for Jonway Znen Roketa Sunl Jcl Shipping, arrives in 3+ days 1. 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