Hi Bud Maybe we can help each other, I am having the same problems. Mine are now set to 1 turn open which is running rich enough to start and run smoothly without choke, but runs very lumpy when warm! I'm not sure now whether to go in or out from here? My air screws are about 1.5/ Cheers Chris
you can't its computer controlled, unlike the old carburetors with an idle air mixture screw to adjust, its set by the factory and you can't screw with it
Cant say from experience with this particular model whether it is an air or fuel screw, however; If there is only one screw then it does both. If there are 2 others near it then one does the air, the other two do the fuel. The factory standard setting for the main idle-adjustment screw on most bikes is 1 and 1half turns out from closed position. This is often the case with the other adjuster screws as well, but the mixture will need to be altered as the engine wears.
They are not supposed to be reset because they are factory set to comply with emission laws. yes but where is it located
If it's an EFI engine you do not adjust the mixture screw. The mixture is computer controlled.
Set idle speed to proper r.p.m, by adjusting the IDLE SPEED SCREW. Turn the IDLE MIXTURE SCREW or the AIR SCREW to for correct procedure, achieve highest speed and best response. The IDLE MIXTURE SCREW (FCR) controls fuel delivery to the idle port and the SCREW is located on the engine side of the carburetor slide. Turning the IDLE MIXTURE SCREW out will make idle and off-idle richer. Turning IDLE MIXTURE SCREW (CR, PWK, PJ, PE) controls the amount of air to the IDLE and SLOW CIRCUIT. This SCREW is located on the air cleaner side of the throttle slide and turning the SCREW out will lean the mixture and turning the SCREW in (clockwise) will richen the mixture.
Turn the idle mixture screw in to lean the mixture, out to richen the mixture.
If it has a carby there is a sealed mixture screw on the right side looking from the front. Drill out the the plug and the screw is behind it be careful not to damage carb
Try 1.5 turns out on the mixture screw for an initial setting.
Location of air fuel mixture screw on 1997 harley dyna-super glideRead more: Location_of_air_fuel_mixture_screw_on_1997_harley_dyna-super_glide
how to adjust air fuel mixture on yamaha sh50? Is the screw an air screw (in to richen) or a fuel screw? (out to richen)
If It is the factory res, then it should be screw off.
torque specs air fuel mixture screw on a yz125 2003