800xl wrote:
Sounds like some crud in the jets or a fuel delivery problem Can you rev it up in neutral though? Your description is a little confusing, sounds like it runs great until you put it in gear. If just sticking it in gear (with the clutch in) kills it, then something would have to pretty wrong in the wiring to the carb and/or transmission.
Cleaning the carb out is a matter of careful disassembly, cleaning, and then careful reassembly. My weber carb had this same sort of problem intermittantly when I first started using it. It had sat for a number of years and had dried up gas varnish all over in it. Every once in a while, a chunk of that would get loose, clog up the jets, and I would barely be able to do more than idle.
You should also check to make sure the bowl is getting gas in it, with the truck running the round window in the front of the carb should show the level of gas right in the middle. If not, then it could just be the needle valve on the float. Unbolt the tubes where the fuel line comes in, clean out the screen and the valve and try it again.
It stays on in neutral but when I put it in first it stays on, only when I try to go somewhere it cuts off. I just now went out and tried to start it and it backfired. Smoke came out of the exhaust and it smelt like someone fired off a shotgun. What could cause that problem and would that cause it to not go anywhere.