Leak Down tester kits for the Yamaha TZR250 1KT - 2MA & TDR250 bikes, can now be purchased via my online store.
The
leak-down tester is an essential tool for any high performance two
stroke engine. This kit is installed in place of your carburetor and by
pressurizing the engine cases you can check for any air leakage due to
worn mating surfaces, erratic torque values due to aged parts, worn
crankshaft seals etc. It is a necessary evil that it will help prevent
catastrophic damage to your engine and keep performance up. A very
valuable tool for a two stroke engine, handmade with care.
Directions of use:
Testing
can take place after a newly assembled engine to verify that everything
is leak free, on a bike you just bought and you need to check crank
seals condition etc.
Place
the tool in the carb manifold, seal the cylinder head with a normal
spark plug and seal the exhaust flange with the included CNC exhaust
blank plug. Pump the engine up to 5PSI and wait for 5 minutes. If there
is no pressure drop at all or if it's less than 0.5psi, then the test is
successful and the engine is assembled correct. If there is a pressure
drop of more than 0.5psi, then fill the spray bottle with soapy water to
find the leak and correct the issue.
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