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2003 PROx 800 HELP!!

Dj Jeep

New Member
Messages
2
Age
49
Location
Vermont
Country
USA
Years Snowmobiling
35
Snowmobile
2003 Pro x 800
2002 XCSP 500
My Prox started running a bit rough (and by rough- about 5 miles from home it seemed to have fouled a plug... not the normal pic up and seemed to spit and sputter a bit at lower rpm; that said it also didnt have the top end it had as well, so I didnt push knowing I was a long walk from anything. I made it home and changed out the plugs and it seemed "ok" up and down my street. This past Tuesday I had the day off and was going to ride with my lady, and my sled again was running rough and appears to run on one cylinder. I also noticed that BOTH of my headlights are out- but my dash cluster and my tail/break light work fine.
To date; I have done a compression test, both cylinders register exactly 140. I have cleaned the carbs TWICE, they were dirty but that doesn't change how it runs. I have switched coils with my girlfriends sled, that doesnt change anything. New plugs doesn't change anything. I have swapped wires to the alternate plug, checked the reeds (Power 3 reeds and nothing wrong) I've checked my exhaust valves as well. My coolant is where it should be. I am at a loss. So what is next? Voltage regulator, even though I have lights? I do not know that they are related? I have been told to check my fuel tank pick up, but The jugs are getting fuel as the plugs are wet every time- it will hold an idle but rough (previous owner had the idle set at just around 3,000rpms for take off) currently idling around 1,500-1,800- I have put about 450 miles on and have had not a single problem including a couple rides of 70+ miles. Any suggestions I would love.
 

MrSled

Administrator
Staff member
Admin
Messages
960
Location
Weston, WI
Country
USA
Years Snowmobiling
29
Snowmobile
SideWinder
Are you sure the carbs are clean and have you done a compression check?
 

Dj Jeep

New Member
Messages
2
Age
49
Location
Vermont
Country
USA
Years Snowmobiling
35
Snowmobile
2003 Pro x 800
2002 XCSP 500
carbs were cleaned twice and yes compression was 140 in each cylinder. It is all for not know, I traded it toward a 2008
 

MrSled

Administrator
Staff member
Admin
Messages
960
Location
Weston, WI
Country
USA
Years Snowmobiling
29
Snowmobile
SideWinder
carbs were cleaned twice and yes compression was 140 in each cylinder. It is all for not know, I traded it toward a 2008


Well good luck with your new ride.
 


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