05 900 fusion with 750 miles = Broke

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theUltamateTBM

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Feb 20, 2008

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• Feb 27, 2010

• #1

so today I went out riding in a different area than I usually do and my sled was taching about 400 rpm lower than usual so i figured it was elevation well as the day went on it got worse to the point where it will only spin 6200 rpm then all of a sudden it started making noise so I think the crank is gone starts runs and sounds good at idle and 1/4 throttle but after that bad news

 

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Danbot

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Nov 29, 2007

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Alberta, Canada

• Feb 27, 2010

• #2

Sorry to hear this, I know the pain of downtime this season!
Have you pulled your plugs yet? What do they look like, show us a pic if you can.

 

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Redd

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Nov 20, 2009

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• Feb 28, 2010

• #3

welcome to the 900 club! What kind of noises?

 

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theUltamateTBM

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• Feb 28, 2010

• #4

plugs look really good I knew the problems the 900s have when I bought it so I am not upset it sounds like alot of the noise is coming from the clutches but when you spin the primary it feels stiff like a crank bearing is out on my last ride it was great this ride from the get go was lacking

 

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theUltamateTBM

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Feb 20, 2008

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• Feb 28, 2010

• #5

so I started sled up today to get off trailer and into shop there is no noise anymore I pulled both clutches everything looks good I pulled pipe and y pipe looked at pistons there is a little scuff on pto side piston but good compression I checked the crank runout and it was at .0015 I am feeling some risistance and a little noise from the recoil side so I will pull and see whats up there I think I am gonna go ahead and pull motor just cuz I can

 

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06 RMK 900

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Oct 20, 2008

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Mandan, North Dakota

• Feb 28, 2010

• #6

Your going to feel some resistance because of the magnet on the flywheel with the stator. It's a good idea to pull the motor and take a look at all your mounts. Also when you take the recoil off make sure to leave the bottom two bolts out that way if you ever need to take it off again you don't have to pull the motor!

 

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theUltamateTBM

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Feb 20, 2008

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• Feb 28, 2010

• #7

yes i know there should be some risistance but it feels abnormal to me I have been looking for an excuse to put pistons and motor mounts in so now i think I have it lol

 

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theUltamateTBM

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Feb 20, 2008

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• Mar 5, 2010

• #8

so tonight I went out to work on sled and noticed the coolant was a little low when I pulled the reeds out I found oil and coolant in motor everything looks good I am gonna finish splitting cases just to be sure though

 

94fordguy

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• Mar 5, 2010

• #9

theUltamateTBM said:

so tonight I went out to work on sled and noticed the coolant was a little low when I pulled the reeds out I found oil and coolant in motor everything looks good I am gonna finish splitting cases just to be sure though

Click to expand...

Hmmm...


The only way I can think you would find excessive oil in the bottom end would be if you had a center crank seal going out, it's not unheard of... As for the coolant, i think your only possibility there would be a melted/cracked o-ring in the head.

I'm not really sure how either of those would contribute to your tacking/roughness issue though