Quote:
Originally Posted by rodent
Bike year & model ='19
Temperature (degF) =53
Elevation (feet) =900
Main jet =175
Pilot jet =42
Needle & notch =NECW/3rd
Air screw setting =1 1/2
Throttle valve/slide =Standard(I didn't look  )
When I got the bike new it had an N1ef needle in it and the sucker was very fat on the last 1/4 of throttle when rolled on from low speed in top gear.
I've since changed to NECW and left the jetting the same, went out today and down low the bike feels substantially "crisper/responsive" 
Not near as bad as before, when you roll it on in top gear at a slow speed you get to that last 1/8th throttle and it lays over(fat).
It feels bad enough that I don't feel that dropping the needle one groove will have enough impact, I am steering toward going with a 172.5 main and leaving the needle where it is.
Thoughts? |
The needle position won't matter when you are at Wide Open Throttle. That's strictly main jet territory; well, that and air flow through the filter.
Good luck and let us know how it goes with the smaller main jet.