cant believe i didnt blow it up

[shawn941]

first off my mods are fmf fattys, k&n no lid,+4 timing,,,ported reed cages with boyesen dual stage power reeds,28mm pwk's.its ran great till i put the ported cages in. i noticed a sputter through 2nd gear then would pull hard through rest of gears. has been idling kinda funny too. so i finally pull the main jets and i was in disbelief from what i found,,,,,125 mains!!!!waaayyy too lean guys,,,,,where should i start with my mods listed above,,,150?

[tonyown]

you forgot to tell elevation...

[RadarRacing]

I've seen some really rich needles in some PWK's I believe were meant for dirtbikes. They needed really small mains.

Those needles ended in "A"B" or "C" as the third letter and had really large pilots. I had a set of 35s with 135 mainjets when jetted right with "DDA" needles and 60 pilots. I swapped them for CEL needles, 48 pilots and 152 mains and it was much better off idle and midrange. It may not be lean with those if it has the wrong needles?? Just a thought.

[shawn941]

I've seen some really rich needles in some PWK's I believe were meant for dirtbikes. They needed really small mains.

Those needles ended in "A"B" or "C" as the third letter and had really large pilots. I had a set of 35s with 135 mainjets when jetted right with "DDA" needles and 60 pilots. I swapped them for CEL needles, 48 pilots and 152 mains and it was much better off idle and midrange. It may not be lean with those if it has the wrong needles?? Just a thought.

that may be possible,,,i didnt pull the needle or pilot,,i went to a 150 main,,,ran like shit,,,put 145'sin,,ran a bit better so i will prolly end up around 130-135.the previous owner also ran stock reed cages and a lid oin the box,,,i ditched the lid and put ported reed cages so it leaned it out some. it must have a rich needle cause i figure i'll end up around 130ish?