Club Tools Available for Member Loan.
The SU Jet Wrench is a thin, double-ended, or specifically offset tool designed to fit the jet locking nut and the adjusting nut at the base of the carburetor. Because SU carbs are often tucked tightly against the inner wing or manifold, a standard deep-socket or open-end wrench usually won’t fit or provides zero room for “swing.”
Usually stamped steel or plated alloy to keep it thin.Typically 0.625″ (5/8 AF) for the main locking nut and smaller sizes (like 1/4″ or 5/16″) for the mixture nut, depending on the carb model (H, HS, or HD series).
