1. Some members were not receiving emails sent from XJbikes.com. For example: "Forgot your password?" function to reset your password would not send email to some members. I believe this has been resolved now. Please use "Contact Us" form (see page footer link) if you still have email issues. SnoSheriff

    Hello Guest. You have limited privileges and you can't "SEARCH" the forums. Please "Log In" or "Sign Up" for additional functionality. Click HERE to proceed.

Automatic Cam Chain Tensioner??

Discussion in 'XJ Technical Chat' started by corner27, Jun 10, 2008.

  1. corner27

    corner27 Member

    Messages:
    42
    Likes Received:
    1
    Trophy Points:
    6
    Location:
    Manitoba, Canada
    I have a 1980 XJ650 Maxim. It's making a rattling noise from the top end. I would like to adjust the tensioner, or reset it if it's automatic. How can I tell if it's auto or not? does someone have a picture that could lead me in the right direction of which bolt to adjust?
     
    corner27, Jun 10, 2008
    #1
  2. RickCoMatic

    RickCoMatic Well-Known Member

    Messages:
    13,843
    Likes Received:
    66
    Trophy Points:
    48
    Location:
    Massachusetts, Billerica
    According to the Yamaha Parts Web Site ... the '80 - 650 Max has a Manual Tensioner.

    There should be a 10 mm Hex on the side of the Tensioner, located on the center of the rear of the block between the middle two Carbs.
     
    RickCoMatic, Jun 10, 2008
    #2
  3. corner27

    corner27 Member

    Messages:
    42
    Likes Received:
    1
    Trophy Points:
    6
    Location:
    Manitoba, Canada
    I found that thing sticking out the rear of the engine. What's the procedure to get rid of any slack in the chain?
     
    corner27, Jun 10, 2008
    #3
  4. wizard

    wizard Active Member

    Messages:
    5,282
    Likes Received:
    26
    Trophy Points:
    38
    Location:
    DEVON ENGLAND
    Take off the timing cover, 4 bolts. left side of the engine. turn the square bolt counter clockwise until the C lines up with the fixed pointer, release the lock nut on the tentioner and slacken the bolt, 12 mm & 10 mm respectively, tap the casing of the tentioner with a hammer handle. tighten the bolt & then the lock nut. replace cover & have coffee.
     
    wizard, Jun 10, 2008
    #4
  5. corner27

    corner27 Member

    Messages:
    42
    Likes Received:
    1
    Trophy Points:
    6
    Location:
    Manitoba, Canada
    seems easy enough. I guess that will be tomorrows job:)
    Thanks for the help!
     
    corner27, Jun 11, 2008
    #5

Share This Page