My 1991 Honda 250x is starting to leak oil out of the top end.. I cant seem to find the gasket online. is it hard to fix this leak? heres a pic pointing out where im talking about.. in the pic i point out where its leaking from also i broke a bolt off (in the pic) and i know that one of the reasons why it leaks..but i know it needs a gasket too and im gonna get it out when i take the cover off but i cant seem to find the gasket online anywhere.. please help if you know where i can find the gasket .. thanks

 

Is it the head cover leaking? it doesn,t have gasket just good black rtv or grey 3m high temp!!

 

so theres no gasket for it? just use silicone gasket maker?..

 

That looks like the valve cover. That's an O ring, not a gasket. Take the O ring to an O ring place and they should be able to match it.

 

Yes that atv has an oring for the value cover.But the head cover between value cover and head is an cover thats is seal by grey high temp sealant...But you talking bout cylinder head[that has value inside of it? they are and gasket there.But if you are bout the little oval shape covers they have orings under them,But you are talking bout the oil leak under the cover that the little cover bolt to thats head cover cover and that has grey sealant to seal it no gasket, So you need to help us with the part you are talking about then...

 

no its not leaking out of the valve covers. its bubbling out on the seam of the head cover (where the red line is in the pic). so if i heard you right theres no gasket for that. so whats the best high temp to use? 3m? and anyone have any pointers to apply it?

 

and just a fyi.. that picture isnt when it was leaking. its a old pic of it i used to point out where its leaking.

 

You can buy some gasket material and make your own gasket pretty cheap. I used to do it all the time. But that area doesn't have any pressure to speak of so RTV will also work.

 

Yeah what he said!

 

There is no gasket between the head and the rockerbox . Take the gas tank off and remove the rockerbox . You wont mess anything up because you dont have to mess with the cam or timming in any way. Clean the rocker box and the head to remove any old sealer and apply new sealer . Any high temp sealer should work . You might get lucky and some of broken bolt might be sticking up out of the head . Hope this helps