I have a vmax 600xt twin, and the other day I flooded my machine, I bought it second hand, and it came with a mbr can, damn thing sure is "LOUD".....lol however, it flooded on the drive home, just before it shut off i was trying to fix my idling, and now I don't know where the idling has to be, i don't know if its too much open or too much close. where should my idling needle stay in order for it to stay on??
Welcome!
I would start with removing and cleaning the carbs! Remove the air screws and spray all the passages!
Then turn the air screw a turn and a half out.
Then syc the carbs. You should have rack style carbs and they should stay but you could check them.
OK, if you're talking about the pilot adjustment screw, screw it in until it lightly bottoms, then out 1 1/2 turns. If you're talking about the throttle stop, idle should be 1600 rpm.
The adjustment screw?
You should post a pic of your carbs!
You could possibly have both an Air and a fuel screw on some rack carbs?
If they are just round slides then there is only an air and an idle!
UM my understanding that the pilot jet manages the fuel and that the adjustment screw to the front of the carb is for air.
The Polaris racks have an additional adjustment screw at the rear that is a fuel screw.
Never seen that, I would thing the Q jet in the center is called the needle jet( the jet that the needle rides in) goes in the Ventura or throat of the carb, it is replaceable too. http://www.yamahapartshouse.com/oemparts/a/yam/5003ba90f8700212fc83f7d8/carburetor-1-for-vt600
I believe #39 is the Pilot air adjustment, it is locate at the front and at the bottom of the throat of the carb.
And #5 is a nozzle that goes up into the throat.
OK if you look at #38 it is calling it an AIR adjustment.
If it were at the back of the carb, behind the flow of air , behind the slide it would be a fuel.
Let me see if I can find a Polaris.
That orifice (#47) is replaceable for adjustment. If the adjustment is on the air horn side, it's called an air screw. If it's on the engine side, it's called a fuel screw.
If the screw is between the airbox and the slide, it's an air screw. If it's between the slide and the engine, it's a fuel screw.
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