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Discussion Starter · #1 ·
so planning on bringing my old girl to a reputable shop as I'm having an issue with her but figured I would ask here first.
I did read through a few of the old threads but didn't find anything that matched my symptoms.
so what i have is a 1993 xlt 580 sp with slp triple pipes its a snow check model with a factory electric fuel gauge and reveres plus an upgraded sway bar and 7.5 inch wide plastic skis, it has a new top end and re-gasketed, clutches set up for the pipes and rebuilt last year, and jetted for the pipes
my issue is only when i go beyond 3/4 throttle doesn't matter if I'm rolling @ 60mph or start off the line as soon as i go beyond 3/4 throttle it bogs and falls on her face, bring it back down below 3/4 and runs like a top. put over 500 miles on it this February this way as it rides and will hit over 80 with 3/4 throttle on a groomed trail plugs are a nice coco brown fires in 3 pulls cold and a jab warm
ive poured over this machine to try and find my issue with no avail I'm hoping some old head here has messed with these sleds back in the day can give me a direction to follow. i love riding around on the old Polaris wedge chassis so yea i know its old but its a runner
Snow Automotive tire Slope Vehicle Freezing
 

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Discussion Starter · #4 ·
also sounds like main jetting (not enuf fuel), restricted fuel filter or kinked fuel line, weak fuel pump - bowls could be running dry at WOT. I know you said it’s jetted for the pipes but you still may have to upsize a little.
So I decided to jack the sled up, fire it up, and let it warm up a bit, then said screw it and held it to the bar till it died. Checked the plugs and they were soaked with fuel, pulled the crank drains and same thing. So I think it's over jetted not under jetted so I'm going to try installing one jet size down from 230s to 220s and got from there as stock was 200s
 

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Discussion Starter · #6 ·
Not the stinger style they collect before exit and the primary and secondary are setup for the pipes I still think is over jetted as it's stock other then the pipes. and clutching setup plus jetting. mine is a 1994 580 sp
 

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