• 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.

Could my timing be wrong?

  • Thread starter Thread starter Call Me Ahab
  • Start date Start date
C

Call Me Ahab

Guest
Greetings,

I'm having some trouble with my engine at the moment - I've recently completed a top end rebuild.

My compression for this bike(gs850) is around 96psi, the compression for my gs1000 is 126+.

I have not checked the valve clearances for the 850 yet. My question is, could my timing be off by a tooth, and would this cause low compression and sluggish performance? The rings are new and I had the pistons deglazed and honed. The bike was running until last week, I was in the middle of a trip out of town when it suddenly began to bog down and die.

Posted a more detailed thread in general / maintenance, but now that I have something specific in mind, I thought this was my best chance for a quick answer. I searched the forum, but all I turn up is more references to valve clearance and shim wear. That, and bad rings.

So what do you say guys, is my timing off?
 
"I have not checked the valve clearances for the 850 yet"

Since you've done a top end rebuild, get to the valve clearances- while you have cam cover off, you can check camshaft to crank timing too.
 
if it ran for a while and suddenly started bogging down i doubt it would be the timing out. you need to check your valve clearances before you go any further.
could be an ignition or fuel problem but check the clearances first
 
Great! that's all I needed to hear =D

I'm printing out some pages of the manual before I head back out to the shop, I'm going to start with the valve clearances and move on to the timing next. I couldn't find any definitive evidence that timing could be the problem, no matter what I suspected.

Thank you!
 
tom203 said:
"I have not checked the valve clearances for the 850 yet"

Since you've done a top end rebuild, get to the valve clearances- while you have cam cover off, you can check camshaft to crank timing too.
Click to expand...

I know... I kept putting it off, and now look where I am :(
 
You must log in or register to reply here.
Back
Top