pilot jet question

[400excaleb]

my friend ordered a hmf slip on and it came with a 48 pilot, is that to big, what should he go with, with the stock one in, when he goes from idle to full throttle it boggs down then revs up

[Honda#4]

whats his main jet at, what kind of filter does he have on, lid or no lid. I kind of need more info, but I would suggest going with a 42 pilot. Sounds a bit big to me.

[underpowered]

i run a 50 pilot on my 426, hmf slip on, K$N, no lid, and a Hot cam stage 2 (old version). on a stock bike with jsut a slip on the 48 sounds a tad fat. try a 42 adn if it backfires on decel then go with a 45 or adjsut the air/fuel screw.

[400excaleb]

hes got 152 main, hmf s/o k&n lid on

[hornetgod13]

42 is the way to go. You start doing motor mods than I could see going higher.

[Honda#4]

I would'nt use a higher pilot use you have like a cam and piston and a full system. Put a 42 pilot in and thats about right.

[Wheelie]

Go with a 40 pilot.

[Honda#4]

I think it might hesitate a slite bit with a 40 in there

[400excaleb]

which pilot jet would make it run best

[Wheelie]

40--Trust me.