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Old 12-08-2007, 07:53 AM   #1
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Sled: 2000 ZR 600 EFI, 2006 Skidoo GSX 550 Fan
07-08 Mileage: None Yet
06-07 Mileage: 900
I have a 2000 ZR 600 EFI. Starting early last season, the sled started to rev to much higher than normal rpms before the track would engage. I doesn't seems to affect mid or top end performance, but even if I want to move 3 feet, I get a mild case of whiplash from the track engaging. Not that this has anything to do with it, but I did rebuild the top end before last season which worked great, but on my first test run across a lake, the coolant line detached under pressure and sprayed coolant throughout the engine compartment (guess I forgot to secure the hose clamp...oops). At first the belt would slip on the clutch due to the greasy nature of the coolant, but I cleaned everything very well with brake cleaner and replaced the belt and was back in business. Anyway, I noticed the problem after that. I don't know if that had something to do with it or if there is a possible alignment problem after the rebuild? One thing I don't know much about is clutches or clutching. I put about 900 miles on the sled last year with this problem, but I need to fix it this year. Any help on what I can check for would be really appreciated.

Thanks
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Old 12-08-2007, 09:01 AM   #2
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Sled: 95 ZRT 800 AGLT, 92 Jag 440
10-11 Mileage: 800
09-10 Mileage: 679
08-09 Mileage: 1000
07-08 Mileage: 1600
06-07 Mileage: 728
ATV: 50cc


This isn't for your main problem, but the small factory hose clamps are garbage. I assumed I had left one loose a couple years ago. In reality it stripped and broke loose from the pressure. Get some better stainless steel ones from a local hardware store.
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Old 12-08-2007, 09:07 AM   #3
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Sled: 02 ZR 800/900 EFI cce, 94 ZR580
10-11 Mileage:
09-10 Mileage: 254
08-09 Mileage: 210
07-08 Mileage: 250
06-07 Mileage: 300
IMO it sounds like a sticky clutch. Like a bad roller or a worn bushing causing the sheeve to pinch on the shaft until enough centrifugal force overcomes the hangup.

Rick
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Old 12-08-2007, 10:09 AM   #4
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Keep an eye on your clutches...Pins and bushing wear out about every 1000 miles and can cause your weights to wear into your clutch causing you to buy a new one...I replace my bushings every 800 -1000 miles as well as the pins if they start wearing.........
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Old 12-08-2007, 10:18 AM   #5
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i read some where that your not supposed to use brake clean when cleaning off a clutch because the stuff will soak into the aluminum, then when your riding it will resinate out and cause belt slippage.

unfortunatly i dont know the fix or what else you could have done in your situation.

just thoughts

im having my own clutch probs on my zr too
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Old 12-08-2007, 02:36 PM   #6
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Sled: AC 02/08 ZRXF 800 EFI, 88 Jag Deluxe
10-11 Mileage: 400
09-10 Mileage: 700
08-09 Mileage: 7416
07-08 Mileage: 3500
06-07 Mileage: 850
ATV: none
clutch rebuild time.
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Old 12-08-2007, 06:22 PM   #7
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Sled: 2000 ZR 600 EFI, 2006 Skidoo GSX 550 Fan
07-08 Mileage: None Yet
06-07 Mileage: 900
A rebuild is what I thought might come up. That's about the one thing I haven't done on a sled before. Does anyone have any ideas on where I can get some direction on how to go about doing a clutch rebuild? I can take just about anything apart and put it back together, I just don't know what parts need to be replaced. Also - if anyone can tell me about the importance of clutch alignment and how it can affect performance, that would be great.

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Onatrail
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Old 12-10-2007, 08:29 PM   #8
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Sled: 98zr 600 carb
07-08 Mileage: 50
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i had the same problem last year when i bought my ZR the previous owner had a hearthrob clutch kit and did absolutely no maintenance in the clutches, or the rest of the sled for that matter, but anyways everytime the primary hit i thought i was gonna break the key on the jackshaft. turns out the rollers were gone way before i fixed the clutch so i put new pins and rollers in and about 300 miles later the black magic spring starting spinning so bad it ate the snap ring off the spider and the rollers in the spider were bad causing the movable sheave to engage on an angle which was obvious on the bushing, to make a long story short , i replaced it with a new arctic cat primary and calibrated with all arctic cat parts. cheapest route out of your problem is a new primary for 250$
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