ok guys i got the jetting thing worked out.. thanks to all those that put in there two cents over the past few months.. now when i start the beast i have to go through a process (when i first start it cold the idle is to low) turn it up.. then as the bike warms up i have to keep lowering the idle screw on the left side of the carbs.. im running dynojet 146/148 3 turns out on the pilots... i dont get any breakups or backfires and the power is all there but every time i stop i gotta turn the damn idle screw down again.. UGHH thought the spring might be beat but its good and is holding the screw where its supposed to be... i dont see any rips in the boots and the cables all work free... any other idea's? could i be lean with the factory pilot jets?

 

Does the idle screw totally controll the idle? If it does then there are not likely any problems with cables or mechanical workings of the carbs. Not knowing how much you turn it down, and how many times during a ride you have to turn it down, I'd suggest this is normal. That is why the idle adjustment screw is so easily accessable.

 

just seems wierd its the only 4 stroke ive had that needed the idle adjusted all the time...

 

3 turns out may be getting close to the limit of that pilot jet. When you adjust the mixture screw, and go in from the intial starting point, itll drop on rpm. Then going back the other way,out, it should have a point where it drops rpms, or its around 4 turns out, before dropping. If you dont get the drop, going out, you need to go one up on the pilot jet.
You could also have a vacumn leak in the intake area, and it would act like this too.

 

i will check arround for vacuum leaks.. maybee more into warmer weather ill take the entire intake side off and clean and test everything.. i also have to check the valve adjustments as i dont know when or if they have ever been done.. soo thats another project..

 

Mine does the same, it's due to the Raptor being really really cold blooded. You gotta warm it up really really good and it'll go away, but be sure to use the choke as much as possible. You're using the idle screw in the place of the choke by doing what your doing with the idle screw. As mentioned before, you could be slightly lean, which in my opinion is good for power, which isn't helping, but isn't horrible either. For the sacrifice you have to give it a good warmup while you get dressed for your ride, don't just fire it up and go in under 5 mins, give it 5-10 mins before you head out. As long as when it's warm it sets right on the idle screw and stays there, leave it there, until it warms up you should only be changing the choke setting, that's what it's there for! I'm running the same exact setting you are, but in way colder temps and have no probs, so don't worry bout running too lean, it's all good! [img]i/expressions/face-icon-small-smile.gif[/img]

 

thanks.. ill try to use the choke more and see how it goes