Keihin PWK Needle
(N427-48)
Kawasaki (Rich Taper)
2000 KZ250
SizeKawasaki
Leaner
(higher)
(warmer)
.N3YD16009-1919
.N3WD16009-1914
.N3YE16009-1920
.N3WE16009-1915
.N3YF16009-1921
.N3WF16009-1916
.N3YG16009-1922
.N3WG16009-1917
.N3YH16009-1923
.N3WH16009-1918
Richer
(lower)
(cooler)
Keihin PWK Needle
(N427-48)
Yamaha (Lean Taper)
2001 YZ250
SizeYamaha
Leaner
(higher)
(warmer)
.N3CW4SR-14916-CW-00
.N3EW4SR-14916-EW-00
.N3CH4SR-14916-CH-00
.N3EH4SR-14916-EH-00
.N3CG4SR-14916-CG-00
.N3EG4SR-14916-EG-00
.N3CE4SR-14916-CE-00
.N3EE4SR-14916-EE-00
Richer
(lower)
(cooler)
Yamaha lean taper needles needs 2 to 3 step
larger mj than the rich taper needles like
the Suzuki and N1E/NOZ_ series.

Keihin PWK Needle
(N427-48)
Suzuki (Rich Taper)
2008 RM250
SizeSuzuki
Leaner
(higher)
(warmer)
.NECK13383-37FF0
.NEDK13383-37FN0
.NECJ13383-37FE0
.NEDJ13383-37FM0
.NECW13383-37FD0
.NEDW13383-37FL0
.NECH13383-37FC0
.NEDH13383-37FK0
.NECG13383-37FB0
.NEDG13383-37FJ0
.NECF13383-37FA0
.NEDF13383-37FH0
Richer
Lower
Colder

PWK Carbs KTMTalk beeners