Chris Graves creator of Fast Eddy Co. gives you an overall walk through on how to use his Cam Gauge Pins to ensure your cam gear and pinion gear are properly matched to one another and don’t fit too loose or too tight.
Pinion gears are available in different color codes, and using this set of gage pins to measure your cam gear will then ensure you select the correct pinion gear. These Hardened certified class Z Gauge Pins are made 100% in the USA by Fast Eddy Co. and make this job simple.
1989 and earlier use a .105″ gauge – https://www.lowbrowcustoms.com/collections/fast-eddy-co/products/fast-eddy-co-cam-gauge-pins-105-1989-earlier-harley-big-twins
1990-99 Big Twins use a .108″ gauge – https://www.lowbrowcustoms.com/collections/fast-eddy-co/products/fast-eddy-co-cam-gauge-pins-108-1990-1999-harley-big-twins
How to use this tool:
1. With cam or pinion gear clean, hold gauge pins in place with a rubber band. Put each pin in opposite sides of the gear.
2. Using a quality micrometer, measure the distance across the pins.
3. Match your micrometer reading with the chart shown below. Use the correct cam gauge pins
and the correct chart for your bike’s year.