[Model A]

My cart occasionally blows a puff of smoke on takeoff after being warmed up. It does not do it constantly. Is this a sign of oil burning or carb related. Any suggestions or recommendations. Thanks in advance.

[Frank7]

Judging by it's age of 18 years I will suggest the your rings are worn out by now.
That disision is based on the fact that it occurs after it warms up.

[Model A]

Any idea on the approx cost of having it repaired. I have heard that putting marvel mystery oil in the gas will help. Appreciate your thoughts. Thanks again.

[Frank7]

I do not suggest putting Marvel Mistry oil in, that is for freeing up sticky parts and not for oil burning engines.