Fuel Screw

[hondaman]

where is the location of the fuel screw on a raptor 660. anyone got a picture or diagram. also is there two of them since there is two carbs. im trying to help my friend on his raptor and i dont know much bout raptors

[DirtDemon]

I am assuming you are talking about the pilot air screw. There will be one on each carb, I believe you will find the air screws on bottom of each carb on the engine side of the float bowl. You will probably need a very short flat-head screwdriver to get to them. They should point straight up from the bottom.

[hondaman]

is there a fuel screw kit that you can replace them with so that you can adjust them while its running without taking it apart. i was looking at other forums and something like that was mentioned

[DirtDemon]

The air screw is on the outside of the carb, and can be adjusted while the motor is running. I think what you are talking about is a dial-a-jet kit, which allows you to adjsut the jetting without disassembling the carb.

[hondaman]

so we bought the adjustable air screws for it and when we installed them it ran really good so we parked it for about 2 hours. when we came back we tried starting it and it sounded like the starter locked up. then it freed up so we looked and the air box had about two inches of gas in it. when we emptied it out there was a very slow leak of gas coming through the boots. any ideas

[DirtDemon]

First off I must apologize for giving you bad info, on a four stroke there is a fuel screw, on a two stroke it is an air screw. I refered to the pilot air screw in my earlier posts, such a thing does not exist on your Raptor. I usually have two-stroke on the brain because I grew up on two-strokes and have worked more on them than I have four-strokes. That being said, your problem could be that you have a float stuck and/or a blocked over flow tube, or you may have installed the fuel screw improperly causing fuel to flow into one or both of the carb throats and thus flooded the motor and the airbox.