1984 Honda XL350 Valve Cover Problems

Just purchased a 1984 Honda xl350r and it ran great but had an oil leak from under the valve cover, Naturally I took the valve cover off and fixed several stripped bolt holes with heilicoil, slathered both sides of the gasket in silicone and assembled everything back together tight. Now I have what feels like no compression and the bike doesn't even come close to starting. Any ideas? I never disconnected the timing chain or cam so I couldn't have messed up the timing right? Thanks in advance....

 To ease starting, the bike probably has a decompression system, it may be stuck open

When you took it the cover off did you have the piston at TDC on the compression stroke? 

No, I didn't   was I supposed to ? :)


22 minutes ago, IVY95 said:

No, I didn't   was I supposed to ? :)


Yes, that way the valves are all closed.  I believe on that bike the rocker arms are in the valve cover, are they not?

They Are... what do I do now?


Hopefully you didn't bend a valve or damage a rocker or sub rocker.  I guess you probably should take it off and check for damage.  I don't recall if that bike has auto decompression or not.  If so, like mentioned above, make sure that is working properly as well.  You may want to post this to the XR forum, or the mods can move it.  There are guys that are a lot more familiar with this old bike than I am.

Shoot, I just used the bolts to tighten it down. I will take it off again and see if I bent anything. Thanks for the ideas! the decompression is auto and hooked into the motor down by the kickstarter. It has no tension and is not opening the valve as it should, Can't I just disconnect it to make sure it is not affecting my compression?


Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now