Average rating based on 1 review(s)

i bought this CHUNG YANG R460 engine for my GSR-25,great engine,very powerful,easy pull start and starts up quickly.only problem i had was that the piston and ring had sharp edges and piston had rough sides so it scored my cylinder i only 3 tanks.i did break in the engine properly.i had to remove the piston and ring and sand it down lightly with 2000 grit sand paper and also ported the intake,exhaust,widened piston skirt to match transfers.now it faster and smooth.great engine.

Rated by George Melchor
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