[davej]

Does anyone know the answer to this?
could a re-used head gasket cause a bike to burn half a litre of oil after just 20 miles?
This is what is happening to my sons honda cm 125, loads of blue smoke all the time from the 2 into 1 exhaust.
Pistons and rings are OK and fitted new valve stem seals but re-used head gasket could this be the problem?
(have no new head gaskets left one on order now)
Thanks for reading
DaveJ

 

[Dodsfall]

If the head gasket is leaking, oil could easily get into the combustion chamber. Head gaskets are usually one-use only.

 

[davej]

Thanks for your reply,I got the New head gasket fitted started the bike and guess what? Loads of smoke and after a while oil coming from the joint in the exhaust.
I think there is a possibility that the oil ways passing through the barrel are blowing oil out into the bores at the head gasket and rubber seals.
I have now decided enough is enough and this bike is to be no more, I am going to break it and sell the parts.
Thanks anyway.