High idle on 2007 rmk

[Repsol83]

this sled is new to me this season. don't have snow to ride it yet but have been doing some work to it.

seemed to idle fine originally when I had the belt on.

shouldn't it idle the same with the belt on or off?

idle wants to slowly creep up to about 3k without the belt on. can't put the belt back on quite yet because i have the skid apart... but it seemed strange...

its a 2007 600 h.o.

 

[yukonrider]

I would start by checking the free play in your throttle cable. Spec is. .2 to .8m, of slack before the cable gets engaged by the flapper.

 

[Repsol83]

but it idles fine with the belt on... does it need the belt to idle properly?

 

[GREICO1]

Check your intake carb flanges. They are notorious for being cracked. As for the belt changing the idle, if it is too tight and dragging, it is possible to have this effect without it on the sled.

 

[Repsol83]

the belt was set the way it should be... when it was on... im just asking if it should idle normal without the belt

 

[mtnclimber19]

Yes, it should idle the same with the belt on or off. The only thing that would make it idle different with the belt on is if the deflection was set too tight.

 

[Repsol83]

well I dug into everything and found a whole bunch of things screwed up. Throttle cable was good. intake boots are shot. there was silicone around then that the previous owner must have tried to use to seal them up. looks like there were new reeds put in because they look virtually brand new... BUT... one of the reeds had two little sticks in it. Actualy 3-4 inch twigs... WTF....

moving to the front of the motor the exhaust valves were both very dirty... and one of them the spring was rusted and broken so the valve was not even working. and it looks like the exhaust valve gaskets and the gaskets between the y pipe are shot... so once I swap all this for new stuff I hope it should run better haha