Problems when driving 5-35 MPH
- Gas Adjusting Valve is open too much or seat is not honed to let needle seal.
- Lower Casting Bowl Passage is restricted to Secondary Well via GAV Seat Hole.
- Compensator Jet Orifice contains dirt or rust, or is too small.
- Compensator Jet Orifice is too large.
- Gas Adjusting Valve Brass Seat is missing from carburetors built through 1929.
- Lower Casting Comp. Jet Passage is restricted to Cap Jet via Secondary Well.