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How to install GY6 Big Bore Kit 171cc on 157QMJ (bolt-on!)

Parts Need:

  • 61mm Cylinder w/Piston Kit
  • 61mm Cylinder Head
  • Zip Tie (optional)

Tools Used:

  • Adjustable Wrench, 9mm
  • Big Head Phillips Screw Driver
  • Feeler gauge .004, .005, .006
  • Narrow Flat-Head Screw Driver
  • Needle-Nose Plier
  • Socket 8mm, 10mm, 12mm
  • Torque Wrench 5-7’ Foot-Pounds

 Chemical List*:

  • Carburetor Cleaner
  • CRC Sta-Lube Extreme Pressure Anti-Seize Engine Assembly Lube with Moly-Graph
  • CRC Sta-Lube Moly-Graph Grease
  • Loctite (blue)
  • Mobile1 Synthetic Grease
  • Permatex® Copper Spray-A-Gasket® Hi-Temp Sealant
  • WD-40

*The video below shows a dry installation demo ONLY. However, recommend proper cleaners and lubes (chemical list above) when assemble for actual engine use.


Download related link Taida GY6 Parts Cross Reference

Check out related link Engine Displacement Calculation

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