Page 1 of 2 12 LastLast
Results 1 to 10 of 15

Thread: Slippage in the scondary

  1. #1
    Senior Member Stock sifton's Avatar
    Join Date
    Aug 2006
    Location
    Manitoba, Canada
    Posts
    218


    Default Slippage in the scondary

    I have the belt slipping in the secondary as the engine rev's and the secondary does not open all the way. If I feather and play with the throttle, it will shift out. Once that is done, it then works properly. Just seems to do it when I first start my ride. Any thoughts on what my issue is?

    2000 M Max-151"- gearing? I think it is 23/40....

  2. #2
    Super Moderator Maim's Avatar
    Join Date
    Mar 2004
    Location
    sudbury on. canada
    Posts
    3,502


    Default

    when was the secondary last taken apart and cleaned?
    sleds
    540cc workhorse (vk 540)
    410cc reliable power (enticerII) rx tunnel braces
    500cc mutant margarita mixer (09 phazer rtx/x)
    1000cc of dependability (11 apex xtx)
    1000cc of yamaha excellence ( 16 apex xtx)

    motorcycle's
    00 xt350 mod
    08 wr250x

    atv
    2005 big bear pro

  3. #3
    Senior Member Stock sifton's Avatar
    Join Date
    Aug 2006
    Location
    Manitoba, Canada
    Posts
    218


    Default

    Last year- did overhaul- cleaned

  4. #4
    Senior Member Stock sifton's Avatar
    Join Date
    Aug 2006
    Location
    Manitoba, Canada
    Posts
    218


    Default

    This was a problem last year also- did the o/h and still the same issue....

  5. #5
    Super Moderator Maim's Avatar
    Join Date
    Mar 2004
    Location
    sudbury on. canada
    Posts
    3,502


    Default

    you polished the sheves with a scotchbrite pad?
    sleds
    540cc workhorse (vk 540)
    410cc reliable power (enticerII) rx tunnel braces
    500cc mutant margarita mixer (09 phazer rtx/x)
    1000cc of dependability (11 apex xtx)
    1000cc of yamaha excellence ( 16 apex xtx)

    motorcycle's
    00 xt350 mod
    08 wr250x

    atv
    2005 big bear pro

  6. #6


    Default

    check the three plastic buttons that the helix slides on

  7. #7
    Senior Member Mod mod-it's Avatar
    Join Date
    Nov 2006
    Location
    Lewiston, ID
    Posts
    867


    Default

    What did you do to "overhaul" the secondary, so we know what all is new or has been checked?
    Not much to a secondary. Spring, can get weak or "sag"; tension can be adjusted by adjusting which holes the spring sets in; helix ramp buttons wear and get badly worn and/or notched; 3 wear bolts on the very back of the clutch that wear, they are for setting belt deflection, although if they wear it causes the belt to sit higher and many times squeal at idle...belt too low in sheaves is like trying to take off in second gear (belt deflection, the belt should sit even with the top of the sheaves or up to 1/8" above).
    Belt can also get worn too thin and cause the same second gear takeoff kind of situation. Belt can also get spun bad enough to really harden the edges where it rides and ruin how well it will grip.
    Sheaves should be cleaned well with a green scotchbrite pad. Just warm soapy water, don't want a solvent that will not come off and leave a slick film.
    Could also be something else binding up that causes it to slip until it is broke free. You should pull the belt off, raise the track off the ground and turn everything by hand to see how freely it moves. If it only does it after it has sat, mimic that situation when you check for everything to move freely.
    Last edited by mod-it; 02-13-2020 at 01:45 PM.
    03 Mountain Viper, SLP Triples, SLP Flo-rites, gas rack, low profile blue windshield, NO underhood air going to the air box, (& no more powder bog)

  8. #8
    Senior Member Stock sifton's Avatar
    Join Date
    Aug 2006
    Location
    Manitoba, Canada
    Posts
    218


    Default

    Ramp buttons and bushings were changed- the 3 bolts were changed prior. Scotch brite was used to clean.

    I think I might be blaming the wrong clutch! I rode again, and looking closer after this happens, I do see some belt residue on the primary sheaves. I cleaned and tried again and the same results. But like I said, ride it a bit and all seems fine...

    Primary was also rebuilt last year, but spring was not changed. I have a Heel Klicker kit and the red spring in it.

  9. #9
    Senior Member Open Mod A couple of bucks's Avatar
    Join Date
    Jan 2009
    Location
    Ogle County Illinois USA
    Posts
    6,302


    Default

    How worn is the belt? My thinking is that a worn out cold belt will slip. A worn out warm belt will not.
    Have you checked alignment..... with the residue on the primary all.
    Dannyboy

  10. #10
    Senior Member Stock sifton's Avatar
    Join Date
    Aug 2006
    Location
    Manitoba, Canada
    Posts
    218


    Default

    Belt looks not bad, I will try another. Alignment- not checked recently...no creeping...

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •