

Big Bore Cylinder Kit, 170-180CC Big Bore Piston Cylinder, 61mm Cylinder Head Rebuilt Kit with Piston and Ring Assy For GY6 125cc 150cc Scooter ATV Go Kart Quad
Key item features
🔩 Perfect OEM Fitment – Direct replacement for 61 mm cylinder, fits GY6 50–150cc, Jog, Sym, Znen, ATV brands like Yamaha, Honda, Lifan, and more.
⚙️ Complete Kit Included – Comes ready with camshaft, cylinder head, and gaskets—your all-in-one engine upgrade.
🏍️ Power Upgrade Friendly – 150cc displacement increases performance potential, ideal for riders seeking better torque and acceleration.
✅ Easy Maintenance & Swap-In – Designed for bolt-on installation with factory‑spec fitment, no machining required.
Specs
- Vehicle makeYamaha, Honda, Lifan, Loncin, Zongshen, Buyan, Polaris, Bashan, Hsun, Shineray, Jinling, kazuma, Taotao, Suzuki, chinese, gsmoon, Manco talon
- BrandMiumaeov
- Automotive specialty part typeCylinder & Cylinder Heads
- MaterialMetal
- FeaturesCompression
- Has written warrantyNo
- Free shipping
Free 30-day returns
How do you want your item?
About this item
Product details
Condition: New
Manufacturer Part Number: Does Not Apply
Material: Metal
Cylinder: 61mm ID
Type: Cylinder & Cylinder Heads
Fitment Type: Direct Replacement
Installation Instructions: Not included
Brand: Unbranded
Product function description:
NOTE:
Instruction not included.
Professional installation is always recommended.
Feature:
● 100% brand new and high quality,Durable.
● It could correctly replace the original quality part.
● Material : Made Of Metal
Specification:
Diameter of the Kit(mm):61
Diameter of Piston Pin(mm):15
Diaplacement:150CC
Outer Diamter of Cylinder Skirt(mm):65
Middle Height of Cylinder(mm):69
Total Height of Cylinder(mm):90
Total Height of Piston(mm) :38.5
Compression Height of Piston(mm) :20
Manual measurement, there is a certain error
Fitment:
For Scooter Fit for:Jonway,Baotian,Jmstar,Sym,Sunny,Znen,Wangye,Qingqi,Qianjiang Keeway yiying scooter parts
For Displacement :
include Jog 50,90,100, GY6 50,60,70,80,100,125,150,CN/CF 250,YP VOG 250 260 300
For ATV and Quad,fit for :Loncin,Yamaha,Linhai,Honda,Zongshen,Buyan,Polaris,Bashan,Hsun,Shineray, Jinling,kazuma,Lifan,Taotao,Suzuki,chinese,gsmoon ,Manco talon etc
Package includes:
1*BIG BORE CYLINDER KIT (inclued Camshaft and Cylinder Head, Gaskets)
🔩 Perfect OEM Fitment – Direct replacement for 61 mm cylinder, fits GY6 50–150cc, Jog, Sym, Znen, ATV brands like Yamaha, Honda, Lifan, and more.
⚙️ Complete Kit Included – Comes ready with camshaft, cylinder head, and gaskets—your all-in-one engine upgrade.
🏍️ Power Upgrade Friendly – 150cc displacement increases performance potential, ideal for riders seeking better torque and acceleration.
✅ Easy Maintenance & Swap-In – Designed for bolt-on installation with factory‑spec fitment, no machining required.
Specifications
Vehicle make
Brand
Automotive specialty part type
Material
Warranty
Warranty information
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