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ultramax29
03-24-2010, 07:11 AM
So your saying the spring starts compressing at 1000 rpm?

EthansDad
03-24-2010, 07:49 AM
no, that 1000 is the spring tension measurement of the spring, not the speed at which the clutch engages.

on a stock 70, I would not bother putting the stock spring back in, its junk. We never ran ours.

try something like this:

4.25 roller weights
stock variator
782 belt
1500 ZTR torque spring

That should be close and a better ride than stock. Also, on a stock ride, we are getting a lot of life our of our spring - 4-5 races or so which is good. stock will likely last 1-2 races.

-EA

ultramax29
03-25-2010, 05:51 AM
i sent u a pm asking a few more questions if you wouldent mind answering