RMK 600 compression

max-nut · Nov 14, 2013

Hi

I just did a compression test on my 2012 RMK 600, and got an even 145 psi on each side. To me, that seemed like a tad much

Does anyone know what the compression for an RMK 600 is supposed to be?

donbrown · Nov 14, 2013

max-nut said:
Hi

I just did a compression test on my 2012 RMK 600, and got an even 145 psi on each side. To me, that seemed like a tad much

Does anyone know what the compression for an RMK 600 is supposed to be?

It varies with the engine temp, equipment calibration, altitude, even if the engine cylinders were lubricated prior to the test.

I think IMHO 145 is a great number, warm lubed at STP.

The big issue would be a 10% difference between cylinders but since your cylinders compressions match you seem good to go.

I have personally had compression up to 160 on a 727 SLP kit

xc6rider · Nov 14, 2013

Varies greatly with different gauges as well!

Unless your worried about an aftermarket head on a used sled etc... I would chalk it up as good. Really the only importance youll find with a compression test, is difference between cylinders. And like mentioned above, less than 10% is generally considered "ok"

max-nut · Nov 15, 2013

Thanks guys, even is good enough for me.

The engine was no more than luke warm after being shut down about an hour prior to the test, and I used no extra oil ( didnt know that I was supposed to)

This is at about 2100 miles, and the first time I've ever done a compression test on a snowmobile. Guess the Polaris 800 paranoia must be rubbing off on me

Teth-Air · Nov 15, 2013

Mine was cold and dry, 124 and 121 at 3000+ ft. 2013 I don't expect more than that as my 700 was supposed to be around the same.

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RMK 600 compression

max-nut

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donbrown

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xc6rider

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max-nut

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Teth-Air

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