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There may be times when you need to provide measurements of your accelerator pump. Measuring the pump well will be of no help as most accelerator pump wells are tapered at the bottom and the pump will be loose until it reaches the taper part.

Watch a video about measuring the accelerator pump:


Is your Accelerator Pump Working?

Warm your engine up.
Remove the air cleaner.
Turn the engine off.
Make sure the choke valve is open.
Look down the carburetor and pump the throttle. You should see 1 strong squirt from a one barrel carburetor, 2 squirts from a 2 barrel & 4 barrel carburetor.


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