TAIDA 47mm Ceramic Big Bore Cylinder Kit for Yamaha JOG50 LC (Water-Cooled)Upgrade Your 50cc Engine to Approximately 68cc-72cc
Transform your Yamaha JOG50 water-cooled engine with this47mm Ceramic Big Bore Cylinder Kit, engineered to deliver increased horsepower, stronger torque, and improved acceleration over the factory 40mm cylinder. This performance top-end kit increases engine displacement from49cc to approximately 68cc-72ccwhile maintaining the stock39.2mm crankshaft stroke.
The lightweightaluminum cylinderfeatures an advancedelectroplated ceramic (Nikasil-style) coating, providing exceptional wear resistance, superior heat dissipation, and tighter piston-to-cylinder clearances than conventional cast iron cylinders. This allows the engine to run cooler and more efficiently during sustained high-RPM operation.
Unlike dual-ring pistons commonly found in OEM applications, this kit utilizes alightweight single-ring piston design. The reduced friction and reciprocating weight allow the engine to rev more freely, improving throttle response and high-RPM performance while maintaining excellent ring sealing when properly broken in.
Features
- Upgrades stock 50cc engine to approximately68cc-72cc
- 47mm ceramic-coated aluminum cylinder
- Lightweightsingle-ring performance piston
- Stock stroke compatible (39.2mm crankshaft)
- 10mm wrist pin
- Excellent heat transfer for cooler operating temperatures
- Reduced piston friction for faster engine response
- High-performance ceramic cylinder coating for increased durability
- Direct replacement top-end kit for compatible Yamaha JOG50 water-cooled engines
- Ideal for both street performance and racing applications where permitted
Specifications
- Cylinder Bore:47mm
- Stock Stroke:39.2mm
- Engine Displacement:Approximately 68cc-72cc
- Cylinder Material: Cast Aluminum
- Cylinder Finish: Electroplated Ceramic (Nikasil-Style)
- Cooling System: Water-Cooled
- Wrist Pin Diameter:10mm
- Piston Style:Single Compression Ring
- Piston Material: High-Silicon Aluminum Alloy
- Compression Ring: Single Performance Ring
- Installation Type: Direct Replacement Top End
Package Includes
- 47mm Ceramic Cylinder
- 47mm Single-Ring Performance Piston
- Piston Ring
- 10mm Wrist Pin
- (2) Wrist Pin Circlips
- Complete Top-End Gasket Set
Performance Benefits
- Increased engine displacement
- Stronger low and mid-range torque
- Improved acceleration
- Higher top-end power potential
- Better throttle response
- Reduced internal friction
- Superior heat dissipation
- Improved resistance to cylinder wear and scuffing
- Excellent high-RPM reliability
- Longer cylinder life compared to conventional cast iron designs
Ceramic Cylinder Advantages
The advanced ceramic-plated cylinder offers several advantages over traditional cast iron cylinders:
- Faster heat transfer
- Reduced operating temperatures
- Hard, wear-resistant cylinder surface
- Improved oil retention
- Less piston friction
- Better ring sealing
- Lightweight construction
- Increased engine efficiency
Installation Recommendations
For the best performance and reliability, this kit is recommended to be installed with:
- Larger performance carburetor or properly re-jetted OEM carburetor
- Larger main jet
- Performance reed valve
- Free-flow exhaust system
- Proper coolant system maintenance
- High-quality synthetic 2-stroke oil
- New spark plug after tuning
Proper carburetor jetting is critical after increasing engine displacement. Running a lean air/fuel mixture can cause excessive heat and piston damage.
Fitment
Designed for compatibleYamaha JOG50 liquid-cooled (LC)2-stroke engines using:
- 40mm stock cylinder
- 39.2mm stroke crankshaft
- 10mm wrist pin
Always verify your engine configuration before purchasing.
Important Notes
- Single-ring pistons are designed for maximum performance and quicker engine response.
- Verify wrist pin diameter before ordering.
- Always install new gaskets and properly lubricate piston and cylinder during assembly.
- A proper break-in period is recommended before extended high-RPM operation.
- Professional installation is recommended for modified engines.
This version is optimized for by balancing technical detail with readability, while emphasizing the features buyers care about most: increased displacement, ceramic coating, single-ring performance piston, 10mm wrist pin, and the supporting modifications needed for reliable operation.
