how can i fix yamaha jog?

Could also be the type of oil you are using. I just put some Penzoil 2 stroke oil in my 93 jog and it smokes like a train and seems to bog down at full throttle. Im getting some Yamalube 2S first thing.

Marc
June 2011

its supposed to smoke its a 2 stroke engine worry when it doesnt smoke,if its really badly smoking and has no power then the exhaust may be blocked with carbon from the burnt 2 stroke oil and the excess smoke will be from the oil in the exhaust burning with the heat as a blocked pipe will run very hot and also the gases that come out of it will be very hot too as its forced out of a small hole the gas heats up.

adam bike doctor
May 2010

piston rings!!!

m
May 2010