THIS CARB IS FORTHE ATC70 1978 TO 85 THREE WHEELER
IT HAS 58 MAIN JET AND 38 IDLE JET. THIS CARB IS ALMOST THE SAME AS THE TRX70 BUT THE TOPSET IS DIFFERENT AND THE MAIN JET IS 62 ON THE TRX70 IDLE JET IS THE SAME 38. SO IF YOU USE THE OLD TOP SET (THE PART THAT SCREWS ON TOP AND HOLDS THE CABLE)THIS CARB WILL REPLACE THE TRX70 CARBS, YOU MAY WANT TO GET THE 62 Main jet too.
THIS NEW CARB COMES WITH THE SLIDE, NEEDLE AND FRONT ORING GOING TO MANIFOLD
THIS IS AN OEM looking RING, INSULATOR FOR INTAKE MANIFOLD ATC70 78-85. THE BOLT THAT HOLDS THE CARB ONTO THE MANIFOLD GOES THRU THIS. WITH OUT THIS THE HOLES IN THE STOCK MANIFOLD ARE TOO BIG. THIS ALSO HELPS INSULATE THE CARB FROM THE HEAT OF THE HEAD AND MANIFOLD.