A/f screw
A/f screw
Hell everyone I am a little over my head on this so here I go I have a 01 Fxd it runs good but my plugs are black I know that means that its running rich so do I turn that a/f screw in or out? Or do I get new jets? When I get on the throttle it goes no bogging down or anything my friends tell me too just leave well enough alone? Thanks for the help in advanced. What is the stock setting on the screw?
Road Master
Joined: Dec 2007
Posts: 1,122
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From: St Louis, MO
BTW, it's not usually as simple as just turning the mixture screws in. I would guess that whoever messed with it, probably did more than just that and you probably need a complete tune on the carb. (turning in, makes it leaner). Picture pointed screws going into a hole. The more you turn clockwise, the more the point goes into the hole, letting less gas through.
Sry its a stock bike stock Carb it has the stage 1 done when I bought it I got it about 5-6 months ago I pulled the plugs that were in it when I bought it and they were black as well
Road Master
Joined: Dec 2007
Posts: 1,122
Likes: 1
From: St Louis, MO
Start by turning both screws all the way in until they stop. Don't crank on them-just turn them in until they feel seated. I'm not sure what the official answer is, but I would turn both about 2.5 complete turns out and see how it starts and idles. If you have a tach, I would look for around 700rpm and see what the bike likes best.
Road Master
Joined: Dec 2007
Posts: 1,122
Likes: 1
From: St Louis, MO
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Road Master
Joined: Dec 2007
Posts: 1,122
Likes: 1
From: St Louis, MO
Good point. Make sure it's all the way in after it is warmed up. You could be chasing your tail if you don't know how one thing affects the other.
The choke feels good no binding or nothing but ill check it the dealer said not too use the choke unless its very cold out so I do what the guy said 3 pumps of throttle it fires right up and hold the throttle for a minute or two then go about my way