I got a new bike from my mate and all of a sudden everytime I start it it runs for about 15seconds with full revs and doesnt go very fast and then cuts out. It sounds really loud defferently not healthy I got told itwas the piston rings but idk I have changed fuel and clean air filter I have to bump start it as the kickstart doesnt work but sometimes it does. And I would like to know what is wrong with it befor I take it to a garage
You need to ensure that if the piston rings are worn enough to need changing (as you were told), that the cylinder bore is ok.
No point doing half a job because if you have fitted standard size piston rings when you have a worn cylinder you will lose compression.
Cheers
westcountry
October 2013
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