lost power smokes

[Bobbyz]

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

 

[maniac57]

Probably lost the cheap "chrome" plating on the cylinder and rings are trashed.
Pull the head/jug to check.

 

[crassius]

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.

 

[Bobbyz]

thanks for the info do they make part without cheep chome

 

[Bobbyz]

Pulled head off looked inside sidewalls look shiney and smooth don't look burned

 

[crassius]

sounds good must be something else that is less catastrophic

 

[Bobbyz]

Does anyone know why the chrome would burn off the inside of moter

 

[crassius]

nope, never seen that