200sx

Hello all, I just bought a 1986 Honda Fourtrax 200SX for $150. The only problem is it has no carb and I can not find out from anywhere on the web what the carb size is. If anyone could please help me it would be greatly appreciated. Also suggestions on what carb I should buy for it would be...

I have an 86 200sx fourtrax that smokes like a chimney and can't get the cylinder to come off the bottom end. I removed the head. The studs are still in, but shouldn't it lift up or am I missing something?