

This check valve is based on a design used by Velocette for many years.
This spring loaded check valve opens as soon as the engine is started.
The valve is 1 7/8" long from end-to-end, with little under 1" long body.

We recommend having an oil pressure gauge installed when using any inline anti-drain check valve. For pricing and more information on the advantages of having an oil pressure gauge, see Old Britts Oil Gauge and Mount. If you do not have an oil pressure gauge, after you start the engine, you must check that the oil is returning to the oil tank for at least five minutes.
If your bike does not have an oil filter installed, while the oil tank is drained, it may be beneficial to fit our replacement cartridge-type
oil filter kit (06-4283).
This page was written and designed by F. H. Eaton
& Associates if you have any questions or comments please
contact us at infon@fheaton.com