1. Husqvarna Motorcycles Made In Sweden - About 1988 and older

Shifting without the clutch

Discussion in 'Vintage/Left Kickers' started by Gord, Feb 13, 2011.

  1. Gord Husqvarna
    AA Class

    Location:
    New England
    I am building a 73 WR250 to play around with in vintage MX. A while ago I read (on a different vintage site) a question about clutches. A guy asked something about his clutch. I was surprised at the amount of replies he got from people saying they didn't even use the clutch while racing. Both upshifting and down. Sometimes only slipping it in a corner so they didn't have to shift and lose momentum. These were Pentons and KTM's. (Sachs)
    Is it the same for old Husky's like mine? Have never raced MX and just wanted some opinions on not using the clutch to shift. I always use it.
    Thanks
  2. Ron Husqvarna
    AA Class

    Location:
    Azusa, CA
    As long as you have lots of spare parts, forget the cutch. LOL
    Actually, if you back off on the throttle a bit, you can make the shift pretty easily.
    Its a bit harder on the trans on a downshift, but using the clutch, will make your trans last a whole lot longer.
    Ron
  3. ruwfo Administrator

    Location:
    NJ
    Husqvarna Motorcycle:
    1980 390CR, 1982 430CR, 1984 400WR
    Other Motorcycles:
    1985 250XC, 2016 FJ-09
    I use the clutch sparingly when i race VMX, always at the start, & feather it out of some corners. But like Ron said
    as long as you back off the throttle i've seen no advise affects, but i also change my oil after every race.

    Husky John
  4. Husq.fleet Husqvarna
    AA Class

    Location:
    Pendleton Oregon
    I powershift mine on a MX track. Keep throttle on, breeze clutch and shift. It lets the clutch absorb the "shock" and really the most damage done is on disengaging the gear not going in. The angle ramps on the gear "dogs" keep it in gear and help it go into the next gear. My old drag race (car) trans. worked the same way.
  5. Team Sweden Husqvarna
    C Class

    Location:
    UNITED KINGDOM
    Hi there I note you are asking regarding a WR (wide Ratio)
    In competitive MX racing on CR (close ratio ) models I always changed without clutch But as John says above momentarily back off throttle and change oil as he suggests.
    The WR will be a slightly larger step in ratio Just have a go and see how you feel about it.
    I dont think power shifting is needed at this stage of vintage racing I remember Maicos & CZ`s had a reputation of robustness for such. But I didnt see Heikki or Hakan ever need to as works Husky riders.
  6. Husq.fleet Husqvarna
    AA Class

    Location:
    Pendleton Oregon
    My old drag car tranny would look like that too Huskydoggg until I went to a lighter clutch pressure plate. Tranny gears/rear gears. Let the clutch dampen the shock and ease gear disengagement. My E.T stayed the same and sometimes better, shocking the tires caused spin. I also quit breaking parts. I got my 82 CR250 from my uncle who from new never used the clutch. He said the tranny was the weak link in the bike! Dogs/forks looked horrible when I had it apart-ouch!
  7. n4hhe Husqvarna
    C Class

    Location:
    Madison, AL USA
    Retrofit an autoclutch and you will be forced to shift without a clutch.

    Riding trail/enduro there are many situations I will upshift without clutch, but always during momentary slack. Almost always downshift with clutch.
  8. dirtaddict23 Husqvarna
    AA Class

    Location:
    Colorado
    Where do you live.........I wanna make sure I never buy a used bike from you [IMG]
  9. Daniel508s Husqvarna
    AA Class

    Location:
    Vacaville, CA
    Husqvarna Motorcycle:
    2009 TC510
    Other Motorcycles:
    2009 Suzuki RMz450, 2013 KTM250sx
    WOW, what bike was this? TC250?
  10. HuskyT Moderator

    Location:
    Corona, California
    Who needs a clutch ....? it's only there for starting on the line and stopping at the end of the race... ! I rarely use the clutch on the track....

    T