not a good day bike was running good then it slowly started to lose power till it would hardly run with wot then it started to smoke gray its a 66cc chinagirl using 34/1 mix have about 500 miles on itpulled plug it is black and dry
I'd do all the checks for leakage/seepage at gaskets & seals first tho, then check fuel too. Had one this week that got a glob of oil passed thru with the fuel, spit, sputter, smoke & miss.
You got no crankcase oil, so smoke is coming from somewhere.