• 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.

Another oil consumption threaad

alke46

alke46

Forum Sage
Super Site Supporter
Past Site Supporter
Sorry, I know we all get tired of hearing about high oil consumption but I just need to see if my own diagnosis is correct.

My bike had sat for 4 years due to other needs and just a couple of months ago I finally got it ready to ride. Valves checked, carbs dipped, synched as so on. I have just this month alone put on a little over 1,000 miles on it and while it does run pretty well, it is using oil at the alarming rate of 1qt. per 350 miles.

No smoking on start up. No leaks on the garage floor, no apparent leaking gaskets that I can see anyway. Last time I had my son ride it while I followed, it did not show any smoking going down the road. WTF?????

I am guessing that it needs a tear down with cylinder honing and new rings as well as valve train refreshing, i.e. new guides and stem seals.

Am I right or am I just missing something? Thanks for all your good insights. I will be checking back for your answers every 3-4 hours today.

Thanks,

Larry
 
What do the plugs look like ?
With my optimistic hat on I would be hoping it's stuck rings after the lay up and try one of those ring unsticker things in the fuel.
How much is coming out the breather ?
 
Brendan W said:
What do the plugs look like ?
With my optimistic hat on I would be hoping it's stuck rings after the lay up and try one of those ring unsticker things in the fuel.
How much is coming out the breather ?
Click to expand...

#1 and #4 look perfectly tan on the electrode. #2 is only slightly darker and #3 is my problem carb. Cannot get it to lean out properly. It runs rich and has been running irregular. One tank of gas and it seems ok, then the next tankful it runs just like the fuel level is too low and needs to be switched over to reserve. It acts like I did not get it clean enough. Will have to pull the carbs off to check that.

I am using Marvel Mystery Oil in the crankcase at a 30% mix with the regular diesel 15w40 oil hoping to break loose a stuck ring but no luck yet. Maybe I'll try another additive instead of the MMO.

Don't know how much is coming out the breather. Will have to check that out.

Thanks,

Larry
 
Checked the compression today and got the following numbers: #1) 140 #2) 135 #3) 120 #4) 140. The spark plugs also indicate 1,2,and 4 a nice tan color. #3 is very dark, i.e. rich burning. Could this be a tight valve shim?

Thanks,

Larry
 
Running rich is typically a carb problem. Valves clearance shouldn't have anything to do with it, although if you're not sure what your clearances are, you should do them anyway.

It's possible that it's not running rich and that you have a bad valve seal in #3, causing oil to get into the cylinder. Although you usually see that by lots of smoke at start-up, which you've mentioned you don't have.

Maybe check the float height in carb #3? (And compare it with the others?)
 
eil said:
Running rich is typically a carb problem. Valves clearance shouldn't have anything to do with it, although if you're not sure what your clearances are, you should do them anyway.

It's possible that it's not running rich and that you have a bad valve seal in #3, causing oil to get into the cylinder. Although you usually see that by lots of smoke at start-up, which you've mentioned you don't have.

Maybe check the float height in carb #3? (And compare it with the others?)
Click to expand...

Interesting observation, thanks for that. I agree the rich condition should point to carburetion and the valve clearances were good when I last checked them right before I started riding it again.

The idea that a bad valve stem seal could be causing a problem is justified. Before I changed over to a stock exhaust system there was noticeable smoke at start up and the former mufflers were extremely sooty. However, that all changed once I replaced the 2 sizes over main jets and put it back to stock. That is a good sign that a seal might be bad and something else to check once everything else is eliminated.

I will be going through the examination process within the next few days to check on such things as float heights. Are they likely to changed after carb reassembly? I had them all set at the correct heights before putting the carbs back together and on the bike.

Would a bad valve stem seal cause the compression difference? I don't know. Will wait for an answer.

Thanks,

Larry
 
Last edited:
alke46 said:
Would a bad valve stem seal cause the compression difference?
Click to expand...

No. Next time the headers or carbs are off you could put on your miners helmet, take a canary with you and go exploring. Leaking stem seals appear as oily deposits on the neck of the valves dribbling down from above.
 
What sort of sign did that leaky gasket give you? Am I correct in assuming that you could hear the leak? Was it on the exhaust side?
 
It ran ok but when I pulled it apart I noticed that the gasket was damaged. Water had gotten in through a head stud and it rusted the gasket. The metal gasket rusted and it leaked out past. My 1000 probably lived outside for a while, the left side showed signs of water sitting in places.
 
duaneage said:
I drove my 1000G to Eagle Nebraska last summer. Love that 80mph speed limit
Click to expand...

You must be a dirt track race fan eh? Not much more to see or do in Eagle. I ride past that track probably once a month.
 
You must log in or register to reply here.
Back
Top