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Thread: endurance racing vmax 4

  1. #1

    Default endurance racing vmax 4

    I have a question on this forum. Not sure if I'm on the right one but maybe point me in the right direction. I've got a 92 vmax 4 and I want to race it. It's not ice or grass drags and it's not lake or oval races. It's called the alcan 200 and it's in Haines, ak. It's a road rally. It's an all highway race and we shut the road down for the day. It's a 200 mi race and everyone's average speed range depending on the class that your in. But anyways I'm trying to get the most speed out of this tank. I know they are fast but I need overdrive on the clutch. The whole works without getting a turbo or no2. Just looking for some insight. Thank you

  2. #2
    Super Moderator Maim's Avatar
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    Mar 2004
    sudbury on. canada


    what is more important to you, speed or fuel milage?
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  3. #3


    We have 2 fuel stops. So I'm not too worried about that. I hear that they are gas hogs. It's a timed race so um looking for speed....

  4. #4
    Senior Member Open Mod roudyroy1's Avatar
    Join Date
    Jan 2013
    ontario GTA


    quad pipes
    a wise man from canada once told me
    "there are only 2 types of sleds. 2 STROKES and 4 JOKES" !!!

  5. #5


    I heard there was a place upper Wisconsin area or Michigan that can do overdrive on the clutch.... Does anyone know who that might be....?

  6. #6
    Senior Member Stock Woody255's Avatar
    Join Date
    Jan 2016
    NW Ontario


    Why not install taller gearing instead of the OD primary sheave? If you plan to hold this thing near wide open for 200 miles, 2 gas stops isn’t going to cut it. I would think 60-70 miles per tank when trail riding is about average....

  7. #7
    Senior Member Open Mod
    Join Date
    Jun 2007
    Burlington Wi.


    I think it is Hauck Power Sports is the one I think you are talking about for the primary machining.


    PS, I agree with Woody. Three tanks of fuel won't get you 200 miles running that hard. I burned 23 gallons in 160 miles racing Sidewinders on the river last year on a 92 750. Only about half those miles were all out. Vmax-4 loves fuel.
    I reserve the right to change my mind if someone can prove to me it needs replacing.

  8. #8


    Used to be several that machined the overdrive as Yamaha actually laid out the the specs in the early drag manuals. Should still be a viable upgrade even on the 4 strokers. I may have a contact still if he's not in the ground, been a bit since we played with clutches. I will give him a jingle.

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


    Retired Yamaha racers. 90s Vmaxs and SRXs.
    Last edited by A couple of bucks; 02-07-2019 at 09:28 AM.

  10. #10


    On my 92 vmax crank was 180ed and welded, bender quad pipes. 2 fuel stops are not enough. mine was set up for mountain riding custom tunnel rolled chain case. I had a polaris 11gaL TANK AND AFTERMARKET SEAT. it would burn 2 1/2 tanks in a days riding hard, riding deep snow. in BC. I agree with these guys gear the sled up. running flat out you will probably run out of gas. I love the old vmax 750 and 800 parts are getting hard to find.

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