Jet Needles

DTH

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Joined
Sep 21, 2001
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#1
NEED TO KNOW WHICH IS A LEANER JET A R1370NS OR A R1368MS? I'M LOOKING FOR LEANER TAPER. IS THERE A SIGHT FOR CIPHERING THE JET NEEDLE NUMBERS? THANKS DTH
 

bclapham

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Nov 5, 2001
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#2
NO NEED TO SHOUT!!!

they are both the same taper- 13 dictates the taper- a 14 would be steeper and give more of a "hit" the 68 and 70 part dictates the diameter of the straight portion- 70 is wider and thus leaner from 1/8-1/4 throttle.

the MS/NS part is the length of the straight portion but they are pretty similar i think and this can be adjusted with the clip.

go to www.carbparts.com and you can convert these needles into the "XYZ" needle codes you can buy these needles cheap
 

DTH

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Joined
Sep 21, 2001
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#3
ill whisper this time

seems that the 70 is a lean needle, i might have a leaky rightside crankseal. runs rich when cranking on the throttle. went from a 175m to 170, 55 pilot to 52. and my stock needle (r1370n) is at 1st groove, AS is 1-1/4 out. thanks for responding.

DTH