Mikuni Smoothbore HSR-42 & HSR-45 Carb Rebuild Kit
- Fits HSR-42 & HSR-45 Mikuni Smoothbore carbs.
- If you have 50,000 miles on your carburetor and are getting 50 miles to the gallon, that means 1000 gallons of gas have flowed through your carburetor. That's equivalent to over 18, 55-gallon drums of gas. It's time for a carb rebuild.