I've got a 1991 DR 350 and it's a bitch to start when cold. Once it's warm it starts second or third kick. Once running it pulls like a train. Anyone got any pointers? It's got a new plug, oil, air filter etc. There's a good spark every kick so not a problem there. I'm thinking along the line of the carb. Anyone know if there's a kit for refurbing it or is there someone on here that can overhaul them? I know nothing about carbs at all. Gotta get this sorted soon.