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RPM range for iq 600 cfi-4?

Snowbird11

Well-known member
Lifetime Membership
May 29, 2011
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SLC/Samak, Ut
I've been working on an '09 600 that is real doggy on snow. you can hear its not hitting top rpm's and on a track stand without load it's getting 7400. i recall being able to hit 7900 and even 8000 at one point in its life.

am i excessively low rpm for 7-8k elevation?

i've recently replaced springs and bellows on the exhaust valves and checked the silencer for degradation. last time something similar happened the slp can had rusted out and blocked the exhaust. compression tests still look good and are only 1 psi variance from each side. the belt is new and clutches were rebuilt less than a few hundred miles ago.

can the exhaust temp sensor be exchanged with an lxt 600 to test?
 
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