Hi! I want to upgrade the primary clutch on my 94 yamaha vmax 600 le i was just wondering what kind of clutch,springs,and weights would be good for my sled i just want to give alittle more zip and throttle response out of it. Any info would be greatly appreciated.
Clutch upgrade
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94 to current, including the 4 strokes are the same. some of the 98's and most after 99 had the taller cover. short cover springs wont work in the tall covers and tall cover springs wont in the short, but there are compatable spring colors per cover. short springs are coded by having the color swatches on different coils, tall springs are color swatched on the same coil. tall covers will have an 8DF marking.
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you wouldn't just keep your clutch and buy new spring and weights
xt and dx had different specs. give it a try, you may be pleasantly surprised. worst case would be a little clutch tuning. only way to tell is to go for.
the idea was to get rid of the 94 clutch as it was prone to breaking the spider. it got to the point of "not if" but "when" it would break.
i broke 2 on my 94, back in 94. both were under warranty. in 95 and up the spiders were built differently and the issues went away. the clutch calibrations were also different to go with the upgraded secondary, and 95-96 seemed to pull alot harder.
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106 Posts
On My 97 I took the fingers out and first took 1 gram off each outside wieght (ribit) Gained 300 rpm out of hole. Took apart again and took another gram off ,,,each arm is now 45grams. Clutch is no ingaging aruond 4000 And I can at least spin my rip saw track,,,,It was a wimpy braaaaa.,,,,Now it,s sounds and takes off way better
I,m a newbie, saw use info with caution
cheers
I,m a newbie, saw use info with caution
cheers
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1,004 Posts
top speed go down?
you could if you wanted to. the new style reverse cam secondary will adapt to your sled with a few additional parts. i have one available if interested only ones from a 95 or 96 will fit. 97 and up wont.
i would make sure the belt tension is properly set as well as the correct positioning of the helix and spring on the secondary clutch you have now. you may have to add or remove a spring from inside the secondary to achieve the proper tension.
you need to run the sled and see what its doing, as well as knowing what weights, rivet combination, spring, and roller diameter is in the primary. other key factors include engagement rpm and full shift rpm. you can tune from there.
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106 Posts
no,,it did not seem to
It might have though I have only run it up to around 85 then I let off,,, 600 should go 100??
Seems I only ujusted when it engages
newbie
cheers
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