Used when head is installed, Quickly inserts through the spark plug hole to set a degree wheel.

Compression Gauge Test Set for Engine Cylinders Diagnostic Tester Check

Best Degree wheel for use on Flywheel side.

For use when head is not installed, GX120 to GX200, 6.5 Chinese OHVs

Quickly tell - from the outside - when your engine needs an overhaul! This easy-to-use tester checks ring seals, valves, even head gaskets.

Check for bent or leaking valves, bad ring seal, even leaking head gaskets .

Affordable self-powered timing light eliminates the difficulty of setting your ignition timing.

Quick-Set Degree Wheel Kit. The arbor shaft slips over the PTO and uses a slip-clutch

High Quality Leak Down Tester for accurate results

Timing Light, Self-Powered, Detachable Lead, Plastic, Requires 6 AAA-Cell Batteries,