Yamaha Motorcycle Compression Tester - 18mm

XS650 Direct Verified independent store

→

Compression Tester - 18mm. This 18mm compression tester threads into the spark-plug hole so cylinder pressure can be checked during engine diagnosis.Use it when an engine is hard t o start, smokes, misfires, lacks power, or needs a baseline reading before top-end work.Fitment / CompatibilityUniversal / Custom:Universal / Custom Product Details Engine compression tester Tool size/detail: 18mm Sold individually XS650Direct part number: 35-9030 Before Ordering Confirm spark-plug thread size, hose reach, gauge range, and adapter sealing before testing. Test with a charged battery, open throttle, and consistent cranking method for comparable readings. Show more