HI i bought my son this bike via ebay its been great he relies on it for work but now it wont run it started to back fire and pop loss of power and now will not start turns over fine but no spark spark plug replaced no spark had someone look said it could be ignition coil could this be so if so how much cost and where from is there anything else it could be i am at a total loss its been running fine untill now help

tony, July 2010

check the two spade terminals on the coil as they break where the wire meets the connector,take the seat bucket out and it should be on the right hand side (as you sit on it ) under the side panel.follow the lead from the spark plug and you will find it.i would also change the ht cap for an ngk one of it has a metal type cap they are crap.

adam bike doctor, July 2010