hauck roller setup

justin1620

justin1620

Member
Joined
Jan 31, 2010
Messages
183
Age
45
Location
ON, Canada
hey fellas I would like to get my engagement rpms up a bit to around 3800-4000 rpm and was wondering what the easiest, cheapest way to go about doing this. It engages at around 3400-3500 rpm. I just bought a 99 srx 700 so I am kinda new to this and learning new stuff everyday from this site so bear with me please. I checked out the clutch and found the primary to have an all yellow colored spring..not sure if it is stock or not, stamped 8bw, 8dn-10 weights. The secondary has a hauck magnum roller, tushima (stock?) 38bv helix, and a black spring with a silver mark on it so i am assuming it is hauck's silver spring. It maxes out at around 85-8600 rpm. What would be the simplest way to bring up my engagement rpm without swapping everything out, sled runs hard just want a higher engagement rpm....any advice would be appreciated
 
Yamaha never had an all Yellow spring[to my knowledge anyway]. If you could determine the rate of that spring you could then find a spring with the same final spring pressure[to keep your rpms where they are at full throttle] but with a higher initial spring pressure[to give a higher engagement RPM]. It takes a bit of trial + error but hopefully you will hit the right spring pretty quick...in fact someone on the forum will probably tell you exactly the right spring.
 
You can also get a couple engagement shims, they go between the spring and the spider! do not use any more than 3! Someone on here will know the part number
 
thanks. I will try to find out what spring or how many shims to use. I called Hauck they told me to use their black spring. Is it correct that one shim will increase engagement by 100rpm?
 
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