Hey guys, I am working on a friend 01 raptor that has sat going on 1 1/2 to 2 years. I got her running by cleaning out the carbs and actually had to get rid of the paring brake stuff, it was causing it to only idle at first. Anyways, it runs but only on full choke, if I try to take it off choke it dies almost instantly. It is set up alot different then mine was so I am not to sure where to go from here. It has a K&N filter (stock replacement kind) and has the full airbox with the baffles cut out of the rubber boot. Not sure on the jetting specs and he wouldn't know either. I checked the mixture screws on the bottom, one was 2 out and one was almost 3 out, I set them to 3 and 2 1/2. Any guess on what I can try to get this thing to run normal????

 

You changed the gas right?

You said you cleaned the carburetors so it shouldn't be anything clogged in the jets.

Maybe it just needs to be rejetted?

 

The gas is new, and it ran when he quit riding it so I thought the jetting was ok, but who knows... it never ran as good as mine did.

 

When you cleaned the carb, did you actually remove the jets and clean them? Same thing happened to a friends Raptor. Would run on choke only. We found a clogged jet. Cleaned it, and it ran great. Until it clogged again because we did not remove the gas tank and drain it. There could be dirt in the tank. There is no fuel filter on Raptors.
Good luck.

 

Yeah, one carb was worse, I am gonna take them back apart and run a wire or something trough them all, some has to still be in there somewhere.

 

I don't know about running a wire through the jets. Take the jets out, one at a time. Spray them with cleaner and then hit them with compressed air.

 

thats why i always put inline fuel filters on my bikes

 

After you take the jets out and clean them, give those screws three turns out. Even though one jet is larger then the other, that carb system is best run at almost equal turns out with the mods you described. Unless you have had a special modified tuning done for an elevation problem. I wouldn't go down less then 2 3/4 turns on the smaller jet side.