The part No's are
Part # = 14810-29603
Part Description = ARRESTER,SPARK
Model Count = 10
TC185A 1976 183 TC185 RANGER DUAL SPORT
TC185B 1977 183 TC185 RANGER DUAL SPORT
TC185L 1974 183 TC185 RANGER DUAL SPORT
TC185M 1975 183 TC185 RANGER DUAL SPORT
TS185A 1976 183 TS185 SIERRA DUAL SPORT
TS185J 1972 183 TS185 SIERRA DUAL SPORT
TS185K 1973 183 TS185 SIERRA DUAL SPORT
TS185L 1974 183 TS185 SIERRA DUAL SPORT
TS185M 1975 183 TS185 SIERRA DUAL SPORT
TS185R 1971 183 TS185 SIERRA DUAL SPORT
And
Part # = 14850-27600
Part Description = TUBE,MUFFLER CLEAN OUT
Model Count = 21
RV125A 1976 123 RV125 TRACKER DUAL SPORT
RV125B 1977 123 RV125 TRACKER DUAL SPORT
RV125K 1973 123 RV125 TRACKER DUAL SPORT
RV125L 1974 123 RV125 TRACKER DUAL SPORT
RV125M 1975 123 RV125 TRACKER DUAL SPORT
RV90A 1976 88 RV90 ROVER DUAL SPORT
RV90B 1977 88 RV90 ROVER DUAL SPORT
RV90J 1972 88 RV90 ROVER DUAL SPORT
RV90K 1973 88 RV90 ROVER DUAL SPORT
RV90L 1974 88 RV90 ROVER DUAL SPORT
RV90M 1975 88 RV90 ROVER DUAL SPORT
TC185A 1976 183 TC185 RANGER DUAL SPORT
TC185B 1977 183 TC185 RANGER DUAL SPORT
TC185L 1974 183 TC185 RANGER DUAL SPORT
TC185M 1975 183 TC185 RANGER DUAL SPORT
TS185A 1976 183 TS185 SIERRA DUAL SPORT
TS185J 1972 183 TS185 SIERRA DUAL SPORT
TS185K 1973 183 TS185 SIERRA DUAL SPORT
TS185L 1974 183 TS185 SIERRA DUAL SPORT
TS185M 1975 183 TS185 SIERRA DUAL SPORT
TS185R 1971 183 TS185 SIERRA DUAL SPORT
I have a complete pipe here for a 1974 "L" model. It cost me $50, it's yours for that and post
Brent