Head Stud Cap Nut Set (4)- 8mm

This Digital Tachometer is perfect for measuring the RPM of any gas-powered motorized bicycle engine. No matter if you’re riding a 2 stroke or a 4 stroke engine, this tachometer will measuring the level of spark coming from your engine and tell your RPM and how long you’ve been riding. Without a tachometer, you could accidentally cause your motorized bike to redline, which can then lead to misfiring, damage to your engine case, and seizing. The digital display shows you both RPM's (up to 99,999) and total hours of operation (up to 9999.9) and has a programmable maintenance interval setting to assure you know when to perform maintenance. So if you feel your bike engine’s idling too high or you simply need to know how many miles you’ve been riding, this Digital Tachometer will make sure you know when it’s time to work on your 4-stroke or 2-stroke engine. Part #10 on the Cylinder Head Diagram Package includes Head Stud Cap Nut Set (4 Pieces). Fits 8mm Head Bolt Studs. Part Number (See Parts Manual): 1-10