Grumps said:For my 1996 RMX, my manual states (not sure if the 1998 is the same):
Main Jet = #165
Slow jet = #60
Jet Needle = R1472M1L
Needle position = 3rd
Air screw = 1 turn out
Manual also states:
Bore = 38 mm
Cut-away = 5
Float Height = 16.1 +/- 1.0 mm (0.63 +/- 0.01 in)
Grumps said:My '96 manual states:
Corrected compression ratio:
9.8:1 (Low RPM)
9.1:1 (Middle RPM)
8.0:1 (High RPM)