Finding TDC without the indicator? '80 GS550

[salty_monk]

If it has a long enough probe... mount it somewhere solid & stick it down the spark plug hole, the dial will accurately tell you when the piston is at the top as it will count up until it starts falling away, much more accurate than by feel with a rod, probably no better & a little more messing around than the way you & I described though once you have all the parts (drilling a plug etc is a PITA).

Dan

[Big Jay]

http://www.aperaceparts.com/tools.html