Say Goodbye to Plugged Idle Jets—The Jet Doctor is In!

CBP’s Jet Doctor Kit is the ultimate fix for that all-too-common issue of clogged idle jets in Dellorto DRLA Carburetors. It tackles the problem of dirt and debris entering through the carburetors idle circuit air passages, which can accumulate on the carburetor top, seep down, and eventually find its way to the idle jets - leading to rough idling, misfiring, or starting difficulties.

Our innovative solution reroutes this critical air passage to a higher, cleaner location using extended “snorkel-like” tubes that rise approximately 1.25 inches above the carburetor top, reducing the chance of debris from reaching the idle circuit. Each tube features a rubber o-ring for a tight seal, enhancing protection, and lead plugs to close off the original idle air passages on the carburetor top.

Recommended for both street and off-road applications – anywhere you might encounter dust and debris.

NOTES: One kit is required per carburetor. Post-installation tuning is recommended to optimize the air/fuel mixture for peak engine performance.

View the PDF Installation Guide.