Hi,

This is my first time posting here.

Backstory on the ATC:

I bought this at a auction in a not running condition. I bought it from the estate of the original owner. I ended up replacing the clutch, lashing the valves, replacing all of the gaskets, a side cover, plastics, stripped and rebuilt the carb, new ignition, stripped and sealed the original tank. New petcock on top of it.

Issue:

It starts right up with a little choke especially on a 14F morning here in Michigan. I only run rec fuel in my machines. If I don’t anticipate using it for a while I’ll run the carb out of fuel. Again it starts right after I give it about a minute for the fuel to flow and a little choke. I can ride in reverse and in 1st gear without issue. When I shift into 2nd it maybe makes it a foot and dies. After like 4 or 5 restarts it’s fine riding in 2nd and the higher gears. Pretty frustrating. It will also become boggy in the throttle in 1st during some of these restarts before it “fixes” itself.

I’ve tried letting it warm up without choke for a timed 5 minutes. Then running without the gas cap thinking the venting feature was not working on the gas cap.


any thoughts on where to go next?