ts 100 2 stroke trials will not start unless we bump it then will only run on fast throttle rebored 2 weeks ago ran fine couple of days since then no good want it to start from kick can you advise please change spark plug spark is ok
I had a similar problem where it only ran when bumped and on full throttle I found it to be the head gasket but it took two weeks on and off to find the problem. You might have to get a stronger gasket
Ian Millar, December 2004
there probly isn't any fule geting to the plug you may have a liky crank case
carl, July 2004
Depending on how far you dis-assembled the engine it could be the cick start not put on the right splines or something like the shaft needing to be replaced. If it's not in the right place on the splines the engine may not have enough travel from the kick to get it going....