• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

Compression Test 0,0,0,0?

  • Thread starter Thread starter Prescot
  • Start date Start date
P

Prescot

Guest
So last year my 750, the #3 cylinder was getting washed down with fuel and spitting the fuel+ oil mix out the exhaust pipe.
Since then
1. replaced the piston rings and
1a.fuel needle valves on 2+3 just in case
2.cleaned/ lapped the valves also.
3. put it back together with some new gaskets although cylinder base gasket doesn't have the fire rings. (is this the problem?)
4. made sure the timing marks were in order and adjusted the valves with feeler gauges if remember correctly somewhere btwn .02-.04. Recharged the battery and tried to start but no go.
5.Checked the compression, no readings at all (zero) on all 4 cylinders?, spark is there.

going to recheck the valve adjustment or is there a bigger issue going on???
take it to a shop or sell it on ebay as a project bike?:o:confused::confused:
 
It's tough to get zeroes. Perhaps the cam chain is not indexed right and you are trying to compress with open valves.
 
Are you holding the throttle wide open, but even then you should get something. Make sure the compression tester has the one way schrader valve in it. If it's missing, pressure will never build up. Leak down tester hoses don't have them.
 
Try another compression gauge? You should get some reading even if the valve timing is out (if it was out far enough to give a true zero reading there would more than likely be valves hitting pistons).
 
You must log in or register to reply here.
Back
Top