Compression testers for small engines should ideally have the pressure-release (schrader) valve close to the cylinder. Testers with the valve at the gauge end of a hose will give lower readings on small displacement engines.
Compression testers for small engines should ideally have the pressure-release (schrader) valve close to the cylinder. Testers with the valve at the gauge end of a hose will give lower readings on small displacement engines.
