No. First you take clear plastic wrap and cover the [whole] timing light. Next... Make a gauntlet glove with the cling wrap for your [working] hand. Walk the bike out to the street in the dusk or the dark of night. Remove timing plug-start engine-look for the white advancer line [you painted with nail polish] or dot or however that advancer mark comes up on the rev; that's who shows up in the window, right? Right.
1. If I look at the bike's timing hole, see the line in the middle, I might be at full advance.
2. If I look at the timing hole, see the line is to the right of the hole, it says retarded.
3. If I look at the timing plate, watch that window cut and sweep past the stationary magnet, I know the direction to turn the timing plate cover, right?
I have a [who makes special tools for the car/bike industry?] harley clear plug that sits in a box; says it's for shit is better used as a butt plug. I grab the cling wrap, wrap my shit up and wait for the moon to come out is my drop light for outside LOL