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Old 09-18-2007, 05:16 PM   #1 (permalink)
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1997 skidoo formula III 600

Hey all,
I just picked one of these up with a couple of bad crank bearings. Been looking around on the net and seems like a lot of guys had problems with the cranks in these sleds. anyone know if the motors are any good in these sleds? hows the rest of the sled?
thanks,
josh
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Old 09-18-2007, 06:36 PM   #2 (permalink)
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i heard they where nice sleds. but you realy need to talk to seg,small engine guy he knows hes ski doos.he will help ya
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Old 09-19-2007, 05:42 PM   #3 (permalink)
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get the crank re-done, the rest is good, there is a hole you should drill in the upper case half to aid in lubrication to the outer PTO bearing. make sure everything is done correctly and enjoy
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Old 09-20-2007, 06:49 AM   #4 (permalink)
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Yup, what uper said. There was a fix for the lack of oil to the bearing by drilling the case.
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Old 09-20-2007, 09:19 AM   #5 (permalink)
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thanks for the replys guys. I'll prolly be asking you some questions about drilling the case when I go to do it.
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Old 09-20-2007, 03:00 PM   #6 (permalink)
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what did ya pay for it? i almost got one before i found the cat.
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Old 09-21-2007, 07:59 AM   #7 (permalink)
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I paid $650 for it. so far, but prolly not, it looks like all it needs is a crank and some rings.

do you guys know where I drill the upper case? once I drill the case do I run another line off the oil pump over to the new nipple? or do you know a website where I can get this info.
thanks,
josh
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Old 09-21-2007, 06:04 PM   #8 (permalink)
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when you have the thing apart, look down on top where the cylinder goes on. on the PTO side there will be a machined spot where there looks like there should be a hole. get the drill out and drill a 3/16" hole but you must aim it to end up with the hole between the two bearings. then clean and de-burr the hole. thats all you need.
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Old 09-21-2007, 07:36 PM   #9 (permalink)
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thanks again, you guys on the forum saved my ass again, prolly would have ended up burning out my new crank if I wouldn't have heard about this through you guys.
I can see on the case where to drill, so once I get that setup I just run another line off the oil pump?
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Old 09-21-2007, 11:45 PM   #10 (permalink)
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NO its inside the motor, oil/gas mix just gets in there and lubes the bearing.
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Old 09-22-2007, 08:28 AM   #11 (permalink)
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sorry uper, i'm alittle slow. I see what you mean now, on the inside of the case and drill at a bit of an angle outwards to get between the bearings. the spot directly above the bearings on the outside of the case was what I was orginally looking at/close call. I see there's another one of these spots to drill on the inside of the mag side of the case, should I drill this one too?
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Old 09-22-2007, 07:50 PM   #12 (permalink)
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Old 09-23-2007, 07:25 PM   #13 (permalink)
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no, only a single bearing on the mag side, will just trap oil and most likely get into the ign system.
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wide open till ya see God.....THEN BRAKE!!!

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Old 09-23-2007, 08:50 PM   #14 (permalink)
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thanks, i'll just drill the pto side then
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