Mechanic's Dirty Cheating Tach-o-Watch

Hate having to travel to the parts counter or special tools locker for a mini-tach when preforming a carbsync/idle-drop? I know I do. Employing the principals of mutual induction, a tachometer separate from the motorcycle's own tachometer is necessary to preform such tests. Commercially available and relatively small and cheap, this proves to be an absolute necessity to the mechanic in the field. But what if you're lazy? What if you're yards away from your toolbox of goodies at the track and can't afford to 'wing it?

Enter the Mechanic's Dirty Cheating Tach-o-Watch! Encorporated into this lovely timepiece is just such a compact tachometer. Unwinding from around the outer-dial portion of the watch lies a single, lowly wire about 10-inches long that is to be wrapped around the secondary-side plug wire extending from your coil. After it's been wrapped securely around the plug wire, adjust the digital read-out on the watch face using the tuning-buttons to 2/4 stroke operation, and how many cylinders the model has that you're working on. Now with a quick glance at your watch, you can tell within 500 RPM what the engine speed of the motor is.

In addition, you're usually having to hold the tach in your hand as you preform these tasks, or having to otherwise make a mess of things and try and mount the tach to the until you're working on - possibly damaging chrome surfaces, or damaging the tachometer itself. Now you've got an extra hand to hold your carb adjusting/sync tool as you work. Careful not to get too close to any exhaust/manifold plumbing while using the tachometer function of the watch. Usually the coils are some place hot and cramped. In which case, longer sensing wires are available at a nominal cost.

MacGuyver meets Motorcycles. Just the way it should be.