home Fix label Vehicles label_important Motorcycles

fuel leaking in to cylinders?

i have a hyosung 125 v twin and when it has been stood over night the front cylinder fills with fuel ive made sure the fuel tap is off but still fills up any ideas out there.

graham, January 2006

home Fix label Vehicles label_important Motorcyclesdone

cool well done ,the fuel may well have thinned the oil out your right best to change it anyway to be safe usually the oil level will rise though if its had fuel getting past the piston and into the crankcase,take care ,adam

adam bike mechanic, February 2006

Thanks Adam turned out to be the return pipe back to the tank blocked and front float not shutting off in the carb thanks for advise she purring now

Graham, January 2006

Thanks Adam will strip carb to see , do u think the fuel will have contaminated the oil ?

graham, January 2006

the fuel tap must be faulty and the float needles or seats cannot be sealing properly as really you should be able to leave the fuel on without a problem also it could be a badly adjusted float height or damaged float filling with fuel and therefore losing its bouyancy to shut the fuel flow off ,ok adam

adam, January 2006

link Click here to see other fixes for 125.