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Old 01-24-2011, 09:39 PM   #1 (permalink)
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replacement primary clutch

I have 99 700cc Powder Special. It has a cracked spider on the primary clutch. I have two possiable canidates to replace it. I need your help letting me know if they will fit. The two choices are:

clutch from a 2007 f6 lxr work?
or
Arctic cat 1998 ZRT 800 primary clutch ring gear start

I don't have electric start but will the ring gear matter if I don't?

They are both 6 tower clutches and I currently have a 9 tower. I have the spring, shims and weights.

THanks,
Peter
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Old 01-25-2011, 12:45 AM   #2 (permalink)
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There's a difference between the Comet/cat 6 post clutch and the AC 6-post clutch from the 07. The 07 is a lot stronger, and is a 33mm clutch. The 9-post and the older Comet/Cat 6-post are 30mm. I would look for another 9 post, the older Comet/Cat clutches are really weak and require frequent rebuilding. The ring gear won't matter, some guys run them on starter-less engines to add some harmonic dampening to the clutch.

Knowing how inventive Cat guys are, I would not be surprised if there is an adapter you can get that converts the 33mm clutch to a 30mm crankshaft. Maybe KCCats or RJGleason can weigh in...
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Old 01-25-2011, 07:45 AM   #3 (permalink)
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so you would recomend a 9 tower vs. a 6 tower 30mm clutch?
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Old 01-25-2011, 08:17 AM   #4 (permalink)
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That is correct. The Comet/Cat 6 tower clutches did ok in the older sleds, but with the power of the 700, they wear out in as little as 1000 miles, depending on how hard you ride. The Cat 9-tower is much more durable.
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Old 01-25-2011, 01:37 PM   #5 (permalink)
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from what i've heard, the OEM replacement part for the 9 post 30 mm clutch is now a newer 6 post 30mm. Not sure if it is a different clutch or some adapter to do it.
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Old 01-25-2011, 04:38 PM   #6 (permalink)
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that is correct. I just want to make sure that If I buy a "used" newer clutch that is a six tower it will not fall apart on me right away. We are talking about less than 300 miles a winter of riding. Not hard riding either (have the wife along).
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Old 01-26-2011, 01:45 PM   #7 (permalink)
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Would this clutch work?

Arctic cat firecat primary clutch 2003 f5
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