Won't idle hot.

[abj87]

My sled idle run great for the first 5-10 minutes before its fully warmed up. After that it wont idle, I have to keep the rpms up to 3500 to keep it running. I does have a broken needle valve in one of the carbs, so that maybe a contributing factor. But I think that would cause idling issues regardless of the engine temp. I Just cleaned the carbs and know that I will probably have to again, is there anything else I should look for.

Thanks!

 

[Sled Dog]

Yes fix the needle is a must and cleaning the carbs again is a must make sure your jets are spotless and that you can look through them. Add some mechanic in a bottle and install inline fuel filters.

 

[Grimm]

Isn't there an idle adjustment screw on the RX1s?

 

[Mighty]

Isn't there an idle adjustment screw on the RX1s?

Yes there is, but I doubt he wants to turn the idle up to 3500......
Clean the pilot jets as sled dog suggested. Get a very fine wire to pass through them. I use a wire I cut out of a wire cleaning brush.