20 TECHNICAL DATA
116
20.3
Carburetor
Carburetor type
KEIHIN PWK 28
Needle position
3rd position from top
Idle air adjusting screw
open
2 turns
Main jet
142 (140, 145, 148)
Jet needle
NRKC (NRJC)
Idling jet
48 (45, 50)
Throttle slide
3
Choke nozzle
62
20.3.1
Basic carburetor setting for sandy surfaces
Idle air adjusting screw
2 turns
Idling jet
48
Jet needle
NRJ C
Needle position
4th position from top
Main jet
148
Info
If the engine is not running smoothly, use a smaller main jet.
Summary of Contents for 85 SX 17/14 2021
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