RPM's

[markowinnipeg]

Just wondering what rpm's these sleds should be running.
My clutch engagement is about 3100 and it pulls to 9300 is this typical?

 

[nytroman20]

Get her down to 8900 give or take... Add weight to the tip. What clutch kit?

 

[bottlerocket]

8700-8800

 

[yukon yamaha]

what primary spring are you running?

 

[markowinnipeg]

Sorry no clutch kit that was a typo, I am running h yellow on primary spring and pink on secondary. Could a worn spring be making it rev high?

 

[Turk]

Worn spring will lower rpm,s.

 

[nytroman20]

What's your secondary set at? Should be 6-2....

 

[markowinnipeg]

How do I check what secondary is set at?

 

[2008FxNytro]

Sled is stock? Or you have a clutch kit? Only reason rpms should go up is if you have done mods making more power, or have changed clutching. Everyone has different opinions on rpms to run. With mods they make power with more rpms. But I also hear guys running them to only like 8900.

 

[markowinnipeg]

Sled is stock as far as drive train is concerned and when I look at manual the color of springs in primary and secondary are stock but it is pulling 9300?

 

[Turk]

The nytro will overrev with stock clutching after break in. A used yamaha 47 degree helix will get you back down to 8900. They are cheap & plentiful on the 2 stroke side.

 

[markowinnipeg]

Thanks that is an easy fix as I know SLP carries 47 Degree Helix's

 

[Turk]

You can get a used yammie for about $25.

 

[09nytro]

How many miles on it , you may have a warn belt too

 

[markowinnipeg]

Changed belt out at beginning of season so about 1500km on it. Checked and still sitting a couple of 16ths above the secondary shives. Maybe I will change up and try old spare belt and see if it makes a difference.