sane Posted April 7, 2007 Report Share Posted April 7, 2007 been out on the bike today and its pinking,sy250 two stroke,running it on castrol tts,80mls to 5 lts fuel,standard jets ,would running it on super unleaded cure it? Quote Link to comment Share on other sites More sharing options...
max1956bikes Posted April 7, 2007 Report Share Posted April 7, 2007 normaly pinking is due to low grade fuel. ign timming to far advanced but you can not change that on modern bikes.air leak at manifold or carb running weak poss air filter not on properly.so first thing check bike,then use proboost stuff in fuel. Quote Link to comment Share on other sites More sharing options...
j@mes Posted April 7, 2007 Report Share Posted April 7, 2007 check the fan water level thermostat with the hot weather it may be overheating which will cause it to pink Quote Link to comment Share on other sites More sharing options...
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