• 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.

Yoshimura cam markings

  • Thread starter Thread starter Katarat
  • Start date Start date
K

Katarat

Guest
Where would Yoshimura cams for an 83 Gs1100 be marked if at all ? This motor I have has a ported head stamped Yoshimura and Im not sure if it has the cams too. The exhaust cam does have a tach gear on it but it has an electronic tach on it
 
Adjustable sprockets?

Might have part # under sprocket on the flat face under the sprocket.

Nic
 
from memory they would have "POPY" cast on the cams
i know the 8 valve cams did not 100% sure on the 1100

ozman
 
Ill take another look tomorrow. Cam sprockets don't appear to have elongated holes in them. Did Suzuki continue to use cams with the tach drive gear on electronic tach motors ? Intake cams have pits on several of the lobes also.
 
Katarat said:
Ill take another look tomorrow. Cam sprockets don't appear to have elongated holes in them. Did Suzuki continue to use cams with the tach drive gear on electronic tach motors ? Intake cams have pits on several of the lobes also.
Click to expand...

All of the 83 1100esd (electronic tach)cams were same as ed with exhaust ca m gear. On 1150 they mostly all have no gear , but Iirc ray said some 1150 still had a gear despite the electro tach.

I was going to say measure the lobes but then we will have to debate the rocker ratio.
 
Im just curious anyway, its not that important, they will stay in there anyway. Theres some pitting on some lobes that look like they came that way, I don't see any sign of galling from it. If I an get a micrometer or some calipers in there Ill see what the lobes measure. Ive got to get one of those rocker arm adjusting tools also
 
Yeah take measurements on the cams and compare to the listings on the yosh website. That is the easiest way to do it, aside from finding the POPY markings.
 
I came up with a lobe measurement of 1.372 or 34.85 mm with my cheapo dial calipers. The intake cam has R1 & 455 marked on it. The exhaust cam has R2 & nothing else on. I set them all at .005, they had maybe .002 at the most. I just ground a notch in an old short screw driver and turned the square adjuster with it
 
Katarat said:
I came up with a lobe measurement of 1.372 or 34.85 mm with my cheapo dial calipers. The intake cam has R1 & 455 marked on it. The exhaust cam has R2 & nothing else on. I set them all at .005, they had maybe .002 at the most. I just ground a notch in an old short screw driver and turned the square adjuster with it
Click to expand...

stock cam.

sprocket face should be marked with 470.

Nic
 
You must log in or register to reply here.
Back
Top