I bought a 2005 Sherco 250 recently and have done a fair bit of work having scoured anything to do with Sherco.
I changed the oil, plug, cleaned the carb, fitted new front pads and front sprocket .Replaced the fork seals and changed the fork oil Retarded the timing .
Anyway the bike starts easily when warm, but is cantankerous when cold. Having read this forum thoroughly, I retarded the ignition, and started using the lean the bike on its side trick which sometimes works and sometimes dosent.
Yesterday it wouldent start for love or money, until I eventually tried a drop of petrol into the airbox, which worked instantly. Once started I applied the choke and it raised the revs which leads me to believe it is functioning correctly. I am wondering what size the standard choke jet is, maybe a larger one is the answer? I have read that some people suggest drilling it bigger. Any sugestions or thoughts welcome.