yamaha250 Posted February 26, 2012 Report Share Posted February 26, 2012 only me again, ontesa done .started 3rd kick, runs ok ,tickover good but engine seems noisy, could it be piston slap? plenty comp, hope not mains, how can i determine cause . any tips? many thanks. carl Quote Link to comment Share on other sites More sharing options...
zerorev3rev4 Posted February 26, 2012 Report Share Posted February 26, 2012 piston slap more like tapping on over run or low revs goes when biulding revs up ,mains are growly as if sand in the engine is there all the time and louder with more revs Quote Link to comment Share on other sites More sharing options...
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