Need advice about camshaft gears

Discussion in '5th Generation 1998-2001' started by Mark UK, Aug 30, 2025.

  1. Mark UK

    Mark UK New Member

    Country:
    United Kingdom
    Joined:
    Aug 30, 2025
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    1
    Greetings all. First timer here.

    I have a 5th gen VFR 800.
    I would very much appreciate some advice regarding the scissor gears on the camshafts as I may have done something silly.

    I recently carried out valve clearance adjustment. When I removed the camshafts I forgot to apply paint to a pair of teeth on the gears to indicated correct alignment when replacing them. I realised my potential error after the bike was re-assembled and ridden a couple of hundred miles.
    Yes, I know. I'm an idiot.
    It seems to ride okay, but I cant help but wonder if I screwed up.
    So, my question's are...

    Have I been incredibly lucky and assembled it correctly?

    How would it manifest itself if I haven't?

    Should I strip the whole thing down and start again?

    How do I verify the correct scissor gear position?

    Thanks in advance, and please be gentle with me :)

    Mark
     


    This site may contain affiliate links for which VFRworld may be compensated
    #1
  2. Terry Smith

    Terry Smith Member

    Country:
    Kuwait
    Joined:
    Nov 18, 2013
    Messages:
    3,004
    Likes Received:
    840
    Trophy Points:
    128
    Location:
    Auckland, New Zealand
    Map
    My advice is a bit like that from the Hitchhiker's Guide, Don't Panic!

    As long as you had the main gears set so their marking aligned with the cam gasket surface when the crank is correctly positioned, the timing will be correct. My experience is nothing looks quite right until the cam caps are cranked down which pushes the gear teeth to align and tensions the springs up. I've never needed to do anything beyond that.

    If the scissor gear is misaligned, I assume the tension forcing the gear parts apart will be lessened which might make for a noisier gear drive, but I can't see it causing any other mischief as the cam timing is all set by the main gear. The scissor gear is there only for noise reasons.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #2
    ridervfr likes this.
  3. Mark UK

    Mark UK New Member

    Country:
    United Kingdom
    Joined:
    Aug 30, 2025
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    1
    Thanks for the reassuring advice.

    Full on panic mode has been averted for now.

    What you're saying does make complete sense to me. However, I would be interested to know if there is a procedure they followed at the factory when they built these engines.

    I can find no reference to it anywhere.
    Maybe, as you suggest, it just isn't that critical and I'm worrying over nothing.
     


    This site may contain affiliate links for which VFRworld may be compensated
    #3

Share This Page