how to determine if tachometer is "DEAD"??

[COP TZR]

I don't think it matters, though mine's plugged into the left side.

Thank the lord baby jesus and you very helpful people here on the forum.  I did as suggested, snugged up the 3 brass screws plugged back into the right coil and still nothing.  Then I wired it up to the left coil and it works!!!!!!!!  Damn am I ever so happy.  So if it wasnt working from the right coil, can that possibly mean I have a problem with it?  The engine runs smooth and strong, so I dont think its defective.  Its definately running on both cylinders.

thanks everyone.

[MongoReturns]

Cool!  I checked the M750 wiring schematic (it's folded at the back of the owner's manual) and the only difference between the right (vertical cyl I think) and left (horiz) appears to be an extra wire that runs to the yellow triangle on the original tach-less dash.  Huh.

Anyway, I wouldn't worry about it - if one of the boxes didn't work, you'd not have a cylinder firing.  Ride safe - it's a great bike.  And put a dab of vaseline, grease or paint on those tiny little screws on the front of the dash - they rust!

[COP TZR]

Cool!  I checked the M750 wiring schematic (it's folded at the back of the owner's manual) and the only difference between the right (vertical cyl I think) and left (horiz) appears to be an extra wire that runs to the yellow triangle on the original tach-less dash.  Huh.

Anyway, I wouldn't worry about it - if one of the boxes didn't work, you'd not have a cylinder firing.  Ride safe - it's a great bike.  And put a dab of vaseline, grease or paint on those tiny little screws on the front of the dash - they rust!

thanks for the heads up!