moped LEAKDOWN tester adapter

$19.99

:*sorry none today*

qty:

moped leakdown tester adapter!! this handy device threads into the sparkplug hole on your cylinder head and allows you to pressurize your crankcase/top end to test for air leaks!!

simply install the tester, block off your intake/exhaust port and pressurize the engine to 3-4 psi. if your tire pump seal is 100% air tight, you can keep an eye on the PSI gauge to see if it drops pressure over time and/or spray all the mating surface joints with soapy water to check for leaks. amazing!!

accepts a bicycle tire pump (schrader)
uses a standard valve core (not included)
14mm x 1.25mm threading (standard moped spark plug thread size)

taco rating taco rating 5 of 5

5 of 5 Total Reviews: 1 give your taco rating here

0 taco eaters like this review

Works	December 8, 2025
taco eater : Mickey Haddox from INDIANOLA, IA United States

Yep, threads into sparkplug holes. Will not fit into some heads though because the nut part is huge, so I couldn't leak down test my truck, but that's not what it's made for so I can't discount it. Well machined, very nice!

Was this review helpful to you?

treatland