Glance with the spark plug hole Using the suggestion with the scope positioned just much more than enough in therefore you don’t begin to see the spark plug threads. Use the scope as the light supply and manually flip the engine to posture the piston at The underside of its https://completepara596161.blogdigy.com/how-much-you-need-to-expect-you-ll-pay-for-a-good-noise-level-measurement-instrument-48458101