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earlier engagement)
Final gear on GY6 125 - 150cc engines
it offers superior heat resistance and electrical stability compared to generic factory units
Always torque your cylinder head nuts in a star pattern to factory cross-specifications in multiple stages to guarantee an even crush seal across the head gasket
NCY Cylinder (Cast Iron, 66mm); Zuma 125 stroke earlier engagement)NCY Yamaha Zuma125 66mm Cast Iron Cylinder w o head. Includes cylinder only. Custom gaskets, head, and piston required. Give your Yamaha Zuma 125 some serious power with this 198cc big bore kit. You will need to bore out the engine cases to make this cylinder kit function, which means a trip to the machine shop is in order, but seriously, will be worth it! Don't forget that unlike most scooters, the Yamaha Zuma 125 is a Fuel Injected Scooter, and in
