Worn throttle spindles cause erratic performance from your carb and sometimes the housing gets worn--These are the bushes to repair worn carbs when replacing spindles for
HS2 carbs. As a guidline 0.250" internal diameter and ream carb body to 8.00mm. Sold seperately, 2 required per carb.
these are supplied in some carb repair kits,SEE
AKM2