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Carburetor Facts
by Phil Stewart
Here is the list of carburetors and associated jetting for the various years. NOTE- many bikes have been equipped with high velocity exhausts and accordingly will have larger pilot and/or main jets installed.
Models and Jetting
Year Model Main Jet Pilot Jet Start Jet Main Air Pilot Air Throttle Valve Carburetor
1978 E 137.5 45.0 40 140 180 135 Mikuni BS34-II
1979 F/SF 137.5 42.5 32.5 140 180 135 Mikuni BS34-II
1980 G 1981 H 115(1&4) 120(2&3) 42.5 25 140 185 135 Mikuni BS34-II
1980 SG/LG 1981 SH/LH 110(1&4) 120(2&3) 42.5 25 140 185 135 Mikuni BS34-II
1982XJ 112.5 47.5 25 140 170 ? Mikuni-BS34-II
by Phil Stewart
Here is the list of carburetors and associated jetting for the various years. NOTE- many bikes have been equipped with high velocity exhausts and accordingly will have larger pilot and/or main jets installed.
Models and Jetting
Year Model Main Jet Pilot Jet Start Jet Main Air Pilot Air Throttle Valve Carburetor
1978 E 137.5 45.0 40 140 180 135 Mikuni BS34-II
1979 F/SF 137.5 42.5 32.5 140 180 135 Mikuni BS34-II
1980 G 1981 H 115(1&4) 120(2&3) 42.5 25 140 185 135 Mikuni BS34-II
1980 SG/LG 1981 SH/LH 110(1&4) 120(2&3) 42.5 25 140 185 135 Mikuni BS34-II
1982XJ 112.5 47.5 25 140 170 ? Mikuni-BS34-II