loss of power

[powcom]

04 800 rev. starts easy and runs great on the flats it has all the power i could want. all of a sudden, when i start uphill (with throttle wide open) i slowly lose all rpm and power. i cant make hill climbs, that i could make sitting down last year. it was my first day out, but it seems to have lost alot over the summer. i didnt do much to store it, but like i said it flys on the flats, and just lags on the hills. the only change, was a new "skidoo" belt, and i have tightened that. any ideas on easy places to start looking for issues? it feels like i cant even get the track to breakloss and spin while climbing? thanks for the time!

it seems to be getting fuel and air. a compression test (seems fine on the flats?) i have no money (just like everyone) and really want to ride.

 

[utah_sledder]

Rings

How many miles? Hate to say it but you probably need new rings. Sounds like you are loosing compression when it gets warmed up. JMHO

 

[powcom]

agreed?

do most agree with this? makes sense. is a compression test the best way to diagnose?

 

[Shermanator]

For what its worth I just went through this with my 07 Rev, compression good but turned out to be the ramps were hooped in the primary. Haven't had it out since I got it back but hopefully that'll solve my no power in deep snow issues....Sherm