Pull spark plug from cyl 1, I usually go above the passenger tire access the hole directly.
Wet finger and place in the hole.
Turn engine over by using 19mm socket on crank damper, turn clockwise (having helper is great but not needed)
When air pushes PAST your wet finger you are on compression stroke
Now you can watch (flashlight) the piston travel up.... bring it right to the top when it just starts to drop back down.... that is TDC compression stroke. Now check the marks on the balancer, the pointer on the engine crank sensor will point right at the 0 on the balancer. Confirmed TDC cyl 1 compression stroke