cardinal43
Member
Hey everyone, anyone have any suggestions that I can do to fix this on my own? Here's the sled and what's happening:
2002 XC 500 SP with power valves
1,900 miles
Sled starts, idles, and runs just fine 50% of the time. Peak speed is normal and peak rpm's are around 8100 rpms. Top speed is normal about 85-90 mph.
However, 50% of the time, sled runs fine until about 50mph but then won't increase past 50mph or hit peak rpms. I hold the flipper wide open, sled takes off normally until about 50mph and then sort of bogs and won't increase in speed. I thought it was the power valves not opening properly, but after cleaning them the sled still has this problem about 50% of the time. If I release the flipper and wait a few seconds, sled will pull all the way to 8100 and run normally. Then, on the next straight away, it will bog at 50mph again. Then on next straightaway, it will pull just fine to 8100 rpms and 90mph
12 months ago, I put the correct amount of stabil in a full tank of gas and ran the sled around the trails for about 30 minutes to get the stabil through the lines. Since then, the sled has been in storage with that same stabil and fuel. I have ran this old fuel out of the system and filled up with a new tank of fuel about 20 miles ago. Could there be something getting clogged in the carbs about half the time? Intake getting clogged? Belt seems to be sitting fine. Clutch issue? Any other thoughts?
2002 XC 500 SP with power valves
1,900 miles
Sled starts, idles, and runs just fine 50% of the time. Peak speed is normal and peak rpm's are around 8100 rpms. Top speed is normal about 85-90 mph.
However, 50% of the time, sled runs fine until about 50mph but then won't increase past 50mph or hit peak rpms. I hold the flipper wide open, sled takes off normally until about 50mph and then sort of bogs and won't increase in speed. I thought it was the power valves not opening properly, but after cleaning them the sled still has this problem about 50% of the time. If I release the flipper and wait a few seconds, sled will pull all the way to 8100 and run normally. Then, on the next straight away, it will bog at 50mph again. Then on next straightaway, it will pull just fine to 8100 rpms and 90mph
12 months ago, I put the correct amount of stabil in a full tank of gas and ran the sled around the trails for about 30 minutes to get the stabil through the lines. Since then, the sled has been in storage with that same stabil and fuel. I have ran this old fuel out of the system and filled up with a new tank of fuel about 20 miles ago. Could there be something getting clogged in the carbs about half the time? Intake getting clogged? Belt seems to be sitting fine. Clutch issue? Any other thoughts?
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