Ski-doo 800R engine stock compression?

T

techsledder

Member
Does anyone know what the engine compression (psi) should be for a ski-doo 800R engine?
I looked in the BRP shop manual and I tried to find the acceptable range, but I couldn't find it. I went and ran it for 15 minutes, then measure the engine warm and got the same results as my cold engine #s. It was around 130-135psi in each cylinder.

Thanks much, Paul

Sorry I forgot, 1200-ish miles on it...
 
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M

mrskidoobydoobydoo

Guest
i would say somewhere between 145 and 150 would be where you want a 08 depending on miles
 
B

blutooth

New member
It's hard to ask this kind of question unless everyone is using the same compression guage. those things can be way off. Mine will read as much as 5 psi different from Gigakesslers...

I think last time I checked mine were 138 and 140 (but that was warm) - 1200 miles on my 09.

Brand new out of the box, anywhere from 145 to 150 is good, but it is hard to stay there. The real key is how close the 2 cylinders are. Anything more than 10% difference and you are starting to have problems... I might go check mine again this afternoon when I pull it off the truck just for fun.

Stop digging into all of these things that are too late to change before you head out to Tog! If it runs, and you are having a great time fantastic, everything is great!

Blutooth
 
T

techsledder

Member
blutooth said:
Stop digging into all of these things that are too late to change before you head out to Tog! If it runs, and you are having a great time fantastic, everything is great!

Blutooth
Click to expand...

It's an illness I have. :) I double check everything... it's the engineer in me. Thanks for your help!
 
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