Throttle shaft repair tools

Use the Zako ATS throttle shaft repair kit to do a complete carburetor or TBI overhaul.

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Throttle shaft repair tool with Quadrajet carb

Welcome to Throttle Shaft Repair

Every one of us that has rebuilt a few carburetors has run into the situation where after our work is completed the engine revs too high or idles improperly. This is, of course, due to a worn out throttle body that allows excess air past the throttle shaft. Now there is a simple and economical fix!

Versatile

QJets, TBI and more

Use the Zako ATS throttle shaft repair kit to do a complete carburetor or TBI overhaul.

Rebuild worn-out throttle bodies on most carburetors and TBI units. This revolutionary tool eliminates vacuum leaks around throttle shafts!

No need for a drill press, special bits or complicated jigs - the Zako ATS throttle shaft repair kit lets you ream out the throttle body and install new bushings perfectly, every time!

Each kit comes with bushings for five carbs or throttle bodies. Extra bushings are available - use the tool over and over again.

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Quadrajet carburetor
Quadrajets

Service Quadrajets and DualJets with the ZA-01 5/16" kit

GM TBI
GM TBI

Fix worn Throttle Body Injection units with the ZA-05 3/8" kit

Carter Thermoquad
Thermoquads

Install bushings in carbs with 3/8" shafts using the ZA-05 kit

Carter BBD
2G & BBD Carbs

ZA-01 services most carbs with 5/16" shafts including Rochester 2G, Carter BBD and more

ZA-01 Throttle Repair Reamer

$ USD

ZA-01 5/16"Throttle Shaft Repair Reamer Kit

Precision four flute reamer with depth stop and pilot, with ten sintered-bronze oil-impregnated bushings (enough for five jobs) and full instructions. For Quadrajets, DualJets, Rochester 2G, Carter BBD and other carbs with 5/16" shafts. More details...

Throttle Shaft Repair Kits

Each kit includes the precision four flute reamer with depth stop and pilot., along with ten sintered-bronze oil-impregnated bushings (enough for five jobs) and full instructions. The tool and accessories come in a sturdy package which serves as a storage container.