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Old 02-17-2004, 11:57 PM   #1
jhneinak
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I have a 91 Indy 500 SKS that appears to sit low (11 inches from the ground to the tunnel in the rear) when I take it off the stand. I had a spare shock (new) so I replaced it, no change. I followed the suspension adjustments in the Clymer manual (measured the sled height unloaded then sat on it as if riding and adjusted so the difference is within 3/4 of an inch). Still seems low and when I go over a steep mogul it sounds like the track scrapes the tunnel in the rear. Any suggestions?
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Old 02-18-2004, 07:07 AM   #2
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I would try replacing your rear springs,the two in the rear on the sides and the one around the front shockin the rear,other than that you won't get a whole lot more out of it unless you install a newer suspension.
the spring change will probably help out your bottoming problem though,a lot of people never change these parts and wonder why it does'nt ride right,i change mine every 2 years.
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Old 02-18-2004, 11:29 AM   #3
jhneinak
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What would be a good suspension to upgrade to?
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Old 02-18-2004, 12:32 PM   #4
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What hole are you bolted on??

Where the rear suspension bolts at the rear there is 2 mounting options,one in the tunnel another on the bracket below the tunnel

I mounted my 91 Indy 500 on the lower holes that made the rear higher and better in deep snow

travel is 7.75"inches on the 91 Dial Adjust rear suspension
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Old 02-18-2004, 01:43 PM   #5
jhneinak
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I'll check tonight after work. Where is the travel measured from? If I measure from the ground to the bottom of the tunnel I get 11 3/4", when I sit on it measuring in the same place I get 11'", after adjusting the tension knob.
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Old 02-18-2004, 04:13 PM   #6
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How does it ride though? Its never going to be as high as new sleds, it only has about half the travel.
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Old 02-18-2004, 07:21 PM   #7
jhneinak
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The ride is a little spongy and it bottoms out on the bigger bumps. I can pick up the rear of the sled 4-5 inches with no effort and when I let it go it drops back and stays there. I have it bolted to the second hole on the bracket below the tunnel and on the lower hole on the tunnel itself.
Needless to say I've adopted a standing riding style that works well as long as I don't have to stop in a hurry say for a moose or I go flying over the bars, not like that's ever happened though .
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Old 02-18-2004, 10:50 PM   #8
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If you already replaced a shock i'm still willing to bet that your springs have no spring left in them.
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SLP heads,airbox
Wiseco prolites,bored 20 over
EPI clutch kit
P.S.I crank
Dial-a-jets
http://www.snowmobileworld.com/forum...2326_thumb.jpg

"97" ZRT 600
Boyesen reeds
Don't need nothing more on this one!!!!
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Old 02-18-2004, 11:15 PM   #9
jhneinak
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Sounds like a plan. I ordered the springs this afternoon, hopefully they will be here Friday so I can mount them and see if it improves. I'll let you know how it goes. Thanks
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