Rich on fuel....

[erexett]

I have problems with to much fuel around 6000 rpm and 1/4 throttle. It splatters(?) and missfire. After a while it only goes on 3 cylinders. It takes a real WOT to "clean" it up so it will go on all cyl again. Is it possible to adjust the needles or should I do something else...?

 

[Snow Fever]

130 main jets, needles dropped one down from stock and the fuels screws @ 1 1/8 turns out.

 

[peteracing]

Check your coils/ caps 03 are wearing loose on plugs

 

[erexett]

Snow fever! What altitude are you running at? I´m at sea level up to 1500 ft.

 

[erexett]

TORS! I disconnected the TORS and now i seems OK. I´ve just made a short test run and the problem was gone. Shall do more testing tomorrow.....

 

[jhlarsen]

chek if u have a bend on your retur hose from the fuel pressure valve!
had the same problem on my RX, and that was the problem.