I new to the site and go some info off this site for gas mileage issues I was getting 6-7 mpg OUCH.Sled always ran wicked rich. I had to replace reed/carb boots so I put boysen"s in. I moved shim to top of clip on the needle, moved one size down on main jet to a 370, and turned the fuel screw out 1/2 turn from seat. I just ran two days and got 17-14 mpg , But now I have a Idle issue, coming down for about 4000-3000 rpm"s I get an over rev almost like I'm running out of fuel, and its takes several seconds to drop to idle rpms.. What should I do The plug looks brown and the sled was much more enjoyable to ride(less smoke fumes) Help please!
