THIS CARB KIT WILL WORK ON 78 THRU 81 CARBS. IT IS MADE IN JAPAN. 15A @ SOME_MODELS_FROM 1978_TO_1981 HAD_PRESSED_IN IDLE_JETS_= READ_THISTHE IDLE JET IS PRESSED IN FROM THE FACTORY AND CAN'T BE REPLACED. (I USUALLY PULL IT OUT AND CLEAN IT, THEN I TAP IT BACK IN....) ON 1978 TO 1983 MODELS WITH PRESS IN IDLE JETS: 1. PULL THE OLD JET OUT WITH TWISTING MOTION USING PLYERS 2. CLEAN IT WELL. 3. IF PLUGGED AND CAN'T BLOW THRU IDLE JET ?? IF PLUGGED AND CAN'T BLOW THRU IDLE JET ?? (I USE A STRAND OF STAINLESS STEEL FROM AN OLD THROTTLE CABLE, run it over a bench grinder to make a flat spear point on it . then use some carb spray cleaner as i work it through the jet. JUST DON'T MAKE THE HOLE BIGGER IF YOU CAN HELP IT.) @ 18MM ROUND FUEL FILTER SCREEN ATC70_ATC110 C70_CT110 OTHERS (SOLD_EACH) (275M)FITS: ATC70 1978 TO 1985 ATC110 1979 TO 1983 C70 PASSPORT 1980 AND 1981 ONLY CT110 1980 AND 1981 ONLY 275M