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running rich at idle,

amsoil2010-08-10 22:39:40 +0000 #1
mine is running rich at idle, lots of power, but fouling out plugs

where are the air/fuel screws? got a pic

2005 b f 750i

dyntek cdi
HeadC12010-08-10 22:53:10 +0000 #2
On the bottom of the carb. If you've never had a jet kit in the bike then you will have to drill them out to get to the screws. I'll see if I can find a pic.
HeadC12010-08-10 22:56:31 +0000 #3
www.dynojet.com/pdf/Q217.pdf

2nd page, Fig. C its the mixture screw (you don't have to remove your bowls to get to it

Stock they come covered with a thin layer of material. Drill a small hole in it and then pry it off.
amsoil2010-08-11 00:02:55 +0000 #4
thank you
nmkawierider2010-08-10 23:08:15 +0000 #5
Set them between 2.25 and 2.5 turns out. You can go down to 2 but if that makes no difference, the float levels are too high and will have to be set. Also check that the chokes are closing all the way. Brute's have a bad habbit of sticking open just a bit and making them run rich enoigh to take out the plugs at low rpms. Sometimes it just the cables, other times its the springs.

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