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post #1 of 2 Old 03-03-2019, 08:19 PM Thread Starter
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2001 zr 440 sno cross help

I got 2001 sno cross 440 and I dont use it much but got questions. At wot it only goes about a mile and then it falls on its face. It I slow down it will eventually catch up and I can do quick spurts. Y is this. I understand it was a race sled and is not meant to got wot but why is this . I can do quick spurts and back down and it wont fall on its face. Just curious what causes this. Also it is a quick sled but people are full of it when they say it will keep up or beat bigger cc sleds to 60 70 mph. I run 93 octane and have it set at lowest timing setting cause I dont want to burn engine up. Any info on sled would b helpful. Sled intrigues me and I like riding it once and a while. Also sled number is 515, anyone know who rode it? Ty for ANY info on it.
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post #2 of 2 Old 03-03-2019, 10:28 PM
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07-08 Mileage: 2 few
06-07 Mileage: ^^^^
Vapor locking due to pinched or restricted vent hose

Internal fuel line has become brittle and cracked (sucking air along with fuel) and making carbs run low on fuel

Same hose above may have become loose fit on internal nipple it goes on (again, sucking air possibly)

Carbs vent hoses pinched or restricted

Fuel pump may have worn out diagphram and not working to it capacity

Could be a multitude of things, but Id begin with these.

Who, me?! Don't listen to me.... (I don't know anything, evidently...)

If it's cnote approved it will work good
Originally Posted by DonoBBD View Post
That is freeking sick man........
0637-185: '99 Sno-Pro APV (guide and button) update kit p/n...
0637-186: '99 Sno-Pro APV superseded valve inserts update kit p/n...


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