What do y’all use to make reference marks?

[doggiedoc]

My old eyes need some help seeing the timing marks on my cam chains and crank. What do you all use to mark things like that? A paint pen? White out? Sharpie?

 

[apsmith49921]

Paint pen. Easiest to see for me

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[lwarrior1016]

Yup. Typically a white or silver paint pen.

 

[RAU03MACH]

Red green blue white
What ever I get my hands on first
Or in my case find