Cjmay Posted April 16, 2011 Share Posted April 16, 2011 Was riding my yamaha jog rr 50cc lc down the road and heard a very quiet ping and my bike cut out. A local bike shop was very unhelpful and said it may be the cylinder that has gone. The bike has very low compression is this true? And if so how hard is it to change the cylinder and piston on this bike? Any help or advice would be appriciated. Link to comment Share on other sites More sharing options...
Moderator Airhead Posted April 16, 2011 Moderator Share Posted April 16, 2011 Has the spark plug come out? Link to comment Share on other sites More sharing options...
Cjmay Posted April 16, 2011 Author Share Posted April 16, 2011 No its still in the head Link to comment Share on other sites More sharing options...
Cjmay Posted April 16, 2011 Author Share Posted April 16, 2011 A few days before bike broke the airbox was full of petrol. I drained out float chamber and it was ok after that on another forum I saw a guy with similar problem and someone said it could be a faulty spark plug. So might give changing the plug ago tomorow. Link to comment Share on other sites More sharing options...
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