GENERATOR, PULSE,, WILL WORK FOR MOST ALL HONDA ENGINES WITH THE MECHANICAL SPARK ADVANCERS. SOME MODELS WILL REQUIRE JUST USING THE UNIT AND NOT THE LARGE RING, IN THIS CASE YOU JUST REUSE YOUR OLD RING/PLATE. SOME WILL REQUIRE THAT YOU CHANGE THE CONNECTOR, BY SPLICING ON THE END FROM YOUR OLD PULSER. THIS WILL ALSO WORK ON: CT110 ALL YEAR 82 THRU 1986 AND IMPORTS ATC125M 1984 TO 1985 ATC110 1981 TO 1985 221T @ Insulated POINTS_WIRE COVER/CONDUIT (SOLD_PER_FOOT) (WHITE_SLEEVE)JUST LIKE THE ORIGINAL POINTS WIRE HAD ON THEM FROM HONDA GOOD FOR 500 DEGREES HOLDS ONE 18 OR 14 GUAGE WIRE WHITE_SLEEVE @ GROMMET PICKUP COIL HARNESS CT110_1982_TO_86 REPLACES 30201-437-300 7/21M (320S) 320S @ HONDA TYPE UNIVERSAL PULSE PICK UP UNIT 6" PIG TAIL FROM GROMMET (SEE FITMENTS) 7/21M (339X) (IN SOME CASES YOU MAY NEED TO LENGTHEN THE PIGTAIL) GENERATOR, PULSE ATC185S 81-83, ATC200 '80-83, ATC200E 82-83 BIG RED, ATC200ES 1984 BIG RED, ATC200M 84-85, ATC200S 84-86 THIS WILL ALSO WORK ON: CT110 ALL YEAR 82 THRU 1986 AND IMPORTS ATC125M 1984 TO 1985 ATC110 1981 TO 1985 339X