Products in Excellent condition look brand new — with no physical flaws, scratches or scuffs — and include all original parts and accessories. The product will be in its original packaging or a suitable replacement box.
Open-Box - Satisfactory
Products in Satisfactory condition show minor to moderate signs of use that affect cosmetic appearance but have no impact on performance. A satisfactory product does not include dents, chips, cracks, or deep scratches. It may not contain the original packaging or some parts and accessories.
Open-Box - Fair
Products in Fair condition operate as intended, but show more significant scratches, dents, or chips. For example, an exhaust returned to Dennis Kirk with a dent or large scratch that doesn’t affect the product's performance. It may not contain the original packaging or some parts and accessories.
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Product Information
Power House Compression Release Valve
Designed to lower the compression for the purpose of reducing extreme pressure imposed on the starter motor and battery
Simply push the caps down to open the release valves, start the engine, and the valves will close by themselves
These valves require head removal and installation next to the spark plug by a qualified machinist
Sold each
Notes:
As with any machining process, verify for sufficient material thickness before any machine work is done.
10mm x 1.0 thread pitch, 1 13/32" overall length with 10mm thread length