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 Post subject: 2011 Sno Pro F6
 Post Posted: Sun Mar 08, 2015 6:33 pm 
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Joined: Fri Jan 14, 2005 4:45 pm
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Location: Long Lake
My sled has no power when I open the throttle all the way. For instance on the lakes it will reach a top speed of about 60 and then start decreasing until I let off the throttle. If I only open the throttle part way it runs fine and doesn't lose power. My friend that usually follows me has a notice a stronger odor of oil coming from my sled. It still has plenty of acceleration and plenty of power on the low end. Anyone have any ideas? I should also add that I just broke 6000 miles with the sled and never have had any engine work done to it.


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 Post subject: Re: 2011 Sno Pro F6
 Post Posted: Sun Mar 08, 2015 9:35 pm 
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ILSNOW Hall of Famer
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Joined: Wed Jan 31, 2007 10:05 am
Posts: 1320
Location: off the beaten path, NY
exhaust valves opening properly? do you clean them annually? you will lose all top end if the valves stay closed. also check clutching for worn springs or bushings in weights etc.

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<---former skidooformulamx
2006 Arctic Cat Crossfire 7
2006 Arctic Cat Crossfire 7 (hers)

2002 Arctic Cat Z 440 (was dads, sold, and found 5 hours away, back home where she belongs)
2004 Arctic Cat ZR120


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 Post subject: Re: 2011 Sno Pro F6
 Post Posted: Mon Mar 09, 2015 5:34 am 
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Joined: Fri Jan 14, 2005 4:45 pm
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Location: Long Lake
Thanks, this was the first year I did not bring it to the dealer to have it serviced for winter (my original dealer closed). The guy that did it for me did not clean the valves and I did not do it. Definitely my fault for trying to save a few $


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 Post subject: Re: 2011 Sno Pro F6
 Post Posted: Tue Mar 10, 2015 7:24 am 
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Joined: Sat Dec 08, 2007 12:09 am
Posts: 457
Location: AlbanyNY
Could also be a dirty fuel filter. Cheap item worth trying out.

Steve


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 Post subject: Re: 2011 Sno Pro F6
 Post Posted: Wed Mar 11, 2015 6:20 pm 
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Thanks


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 Post subject: Re: 2011 Sno Pro F6
 Post Posted: Thu Mar 19, 2015 7:44 pm 
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Joined: Fri Jan 14, 2005 4:45 pm
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Location: Long Lake
SmokinShift600cfi nailed it, broken power valve spring! I took it over to Big Moose AC on Saturday and they called today to say it was ready. Myself and a buddy plan on trailering to Horseshoe this Sunday and getting in one last ride.


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 Post subject: Re: 2011 Sno Pro F6
 Post Posted: Thu Mar 19, 2015 11:13 pm 
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Joined: Wed Jan 31, 2007 10:05 am
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Location: off the beaten path, NY
easy fix, those are always nice. :rev: :dance:

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<---former skidooformulamx
2006 Arctic Cat Crossfire 7
2006 Arctic Cat Crossfire 7 (hers)

2002 Arctic Cat Z 440 (was dads, sold, and found 5 hours away, back home where she belongs)
2004 Arctic Cat ZR120


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