i have a carter carburetor and i have no way to see what isze it is or anything like that, the thing boggs really really bad when i first give it gas, i can't get it to stay started when i put it in gear the only way i have been able to keep it going it to advance the timming so much that when i punch it i hear pinging, now from what i know tha pinging is from the pistons not being all the way up when it sparks so it pings for some reason, it is most likley bad for the engine but i will have to have it like that for a little while while i take it to get new parts and new tires, but i really need help to get it to work properly, so if anyone has had experience with this stuff before please help.

thank you