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Old 02-22-2011, 04:37 PM   #1
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'93 EXT 580z questions...

Hello!

Has anyone had a problem with this sled('93 EXT 580Z) in deep snow? It runs like a charm on hardpack but when I get in the fluffy deeper stuff it will start to bog bad, to the point it wont move. If you sit a little bit your back moving and going fine again for a little while and same thing happens. I figure its sucking in snow and causing problems, can a preson tape off all the hood vents and run it without causing trouble? The belt starts to slip sometimes in the fluffy stuff so I know its getting in there. I know the previous owner had bigger pilots installed to help it run better, not sure if that makes the problem worse or not.

My other problem is riding this thing on the trails is horrible, its all over the place. It has new carbides and a newer 1 inch track, front shocks are set as soft as they go, front rear shock is about in the middle of its settings. The rear adjusters are set in the middle as well. Any ideas on getting it to handle better? Thanks for the help. It has the stock steel ski's with plastic skins installed.
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Old 02-22-2011, 06:27 PM   #2
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the exhaust on the zr's can get covered in deep snow causing it to run terrible. I riveted a small piece of angle aluminum in front of the exhaust outlet to plow the snow out of the way and it helped out alot. the snow can also get on the belt and cause some slippage and a bog.
Does it have fox shocks? they may need a rebuild. Also check your ski alignment. On the steel skis 1/8 to 1/4 inch of toe out is helpful.
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Old 02-22-2011, 07:34 PM   #3
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loosen the limiter straps on the front of the rear suspension. The new dual runner skegs make a lot of difference in trail dart also. between the limiter straps and the front skid spring you can take some weight off the skis and it should get better. loosening the ski springs can be counter productive, allowing the skis to follow rather than lead.
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Old 02-22-2011, 08:25 PM   #4
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 Quote: Originally Posted by Remnar View Post
the exhaust on the zr's can get covered in deep snow causing it to run terrible. I riveted a small piece of angle aluminum in front of the exhaust outlet to plow the snow out of the way and it helped out alot.

would the exhaust on an ext 580 be the same as a zr? cause mine did the same thing yesterday but once the sled started moving (10 mph+) it was fine
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Old 02-22-2011, 09:07 PM   #5
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I have 5 zr's and an ext powder special, and all the zrs hate deep stuff unless I have a piece in front of the exhaust outlet, then they are ok when running in powder. I have heard of guys running a side outlet or a outlet that is on the vertical section of the belly pan by the a-arms, but that requires more modification. you can buy a piece of aluminum angle cheap and shape it with a grinder pop in a few rivets and your usually going to be ok.
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Old 02-22-2011, 09:39 PM   #6
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any certain shape i would need or basically just something to make a trench in front of exhaust outlet
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Old 02-23-2011, 11:28 AM   #7
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Thanks for the idea's.. I will give the angle peice a try.
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