[fastest250r]

does any one think a 55 pilot jet is way to rich for a 265 dri pv? (86 short rod, 38 a/s,195 main, dgh needle, air box elimanater, lrd pipe, 200 psi comp, 32:1 927 castor) the reason i ask is i have a 52 pilot currantly but i have to adjust the air screw to 1/2 turn out just to be able to to leave the line with out bogging or dumping clutch.

 

[gandgracing]

I know I started with a 55 pilot and couldn't get mine to idle. Went all the way down to a 48 and can now back out the idle screw a little and air screw is 2 turns out. Imo I would say a 55 is to rich.

 

[BLACKeR]

195 main sounds rich too. on my 310 i was 48-50 pilot and 170-172 main. my cr 250 with a 38 keihin A/S is the same.

 

[fastest250r]

where my air screw is at tells me that i need to go up on the pilot. if i take my air screw out a half turn at a time it just gets worse. the only way it will run "ok" is with the air screw almost all the way in.

 

[86 Quad R]

that seems too rich to me also. have ya had the carb apart and checked the circuits, using compressed air? also may want to check for air leaks.

 

[BLACKeR]

give your carb a good full cleaning and then try going down a couple on the main see if theres improvement. that main jet at least for my location 600ft above sea level. temperatures 70-90 degrees, high humidity would be way too rich.