2005 Rev 800 won't idle down...Ideas?

[sleddawg01]

Is this just a common problem with Rev's? Myself and a buddy of mine have similar problem....the sleds start fine and idles just fine. Once you ride for a little while and come to a stop, release the throttle, it wants to idle at like 4K and a couple times didn't want to even shut off. Hit the kill switch and still idles at 4K....tap the throttle and it shuts off immediately.

Any ideas?

Cheers!

 

[winter brew]

First make sure you aren't sucking air past the reed/carb boots. They are known for delaminating and leaking.
If they are good, turn out the white knob fuel screws 1/4-1/2 turn to richen it up slightly. It's almost always just slightly lean at idle.....especially if your at a lower altitude..??
If you blip the choke does it drop?

 

[sleddawg01]

I tried that today and yes, if you choke it when won't idle down, it does drop down to about 2K. Got any ideas?

 

[jd440]

TTT

my '04 800 doing the same thing. When i flip the choke for a second. it idles down and stays there nicely. Do i just need to richen it up and be good?

 

[rocks rev]

TTTTTTTTTTTTTTTt

 

[i'llDooit]

When the sled is at normal idle spray starting fluid around the back of the primary to see if the crank seal is leaking. then spray around the carb boots always waiting to see if the idle go's up. if it go's up you have a leak. if none of those bring the idle up, check your reed boots and reeds. they fall apart.

 

[miko]

Do not turn the idle screws down to compensate this! The same thing happened to a find of mine and he burned it down shortly after. That high idle is a lean condition. We found a leak at the carb boots and the carbs were REALLY dirty.

Replaced the boots and cleaned the carbs and problem solved....after an expensive burn down.

 

[SHERMAN]

First make sure you aren't sucking air past the reed/carb boots. They are known for delaminating and leaking.
If they are good, turn out the white knob fuel screws 1/4-1/2 turn to richen it up slightly. It's almost always just slightly lean at idle.....especially if your at a lower altitude..??
If you blip the choke does it drop?

Brew, I know you you know your Sh!t on these doo's but I need some carification on this fuel/air screw buisness. I have seen it pop up a couple of threads that you turn them in to lean out to richen which I don't think is right. It has always been my understanding that if the screw is before the slide it is in fact a fuel screw making in-leaner/ out-richer. But if the screw is after the slide it is actually an air screw making it in-richer/ out-leaner. I believe the screw on mikuni's on ski doo's are after the slide are they not? Please correct me if i am wrong.

Back to the thread... x2 on it being an air leak around pto or carb boots

 

[sledsrock]

Brew, I know you you know your Sh!t on these doo's but I need some carification on this fuel/air screw buisness. I have seen it pop up a couple of threads that you turn them in to lean out to richen which I don't think is right. It has always been my understanding that if the screw is before the slide it is in fact a fuel screw making in-leaner/ out-richer. But if the screw is after the slide it is actually an air screw making it in-richer/ out-leaner. I believe the screw on mikuni's on ski doo's are after the slide are they not? Please correct me if i am wrong.

Back to the thread... x2 on it being an air leak around pto or carb boots

It is indeed a fuel screw, so out for rich and in for lean.

 

[LADYREV800]

I had this same problem with my rev last year before it went down. Tore into the motor this fall and found a torn crank seal, replaced it and put on new boots and reeds. Sled still has a high idle.... Any suggestions..?