NEED HELP TACH WIRING!

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turbocourier 79

trying to build it all
Apr 5, 2005
1,714
258
83
southern oregon
i cant get the tach to work good. i bought two to be sure and they act identical
i really want to put this to bed and install my gauges
factory ninja 250 tach and wire it like the schematic and get nothing
if i wire the IGN to coil power and the GND to coil signal i get about 1/4 rpm reading while running
pretty sure this is wasted spark so the coild should fire ever TDC. i dont think it needs to read both coils with a diode you know









 

partybarge_pilot

Uno mas Cervesa!
May 14, 2004
11,980
3,410
113
Easton, KS
That top schematic is probably for an aftermarket tach. You need the factory wiring diagram and hook it up like that. There should be a wire going from the ECU to the gage cluster for the tach.
 

Horunner

Senior Member
Aug 10, 2014
1,325
1,061
113
Yucaipa, CA
those look nice.
kinda modern for the over all looks
gets kinda costly with all the parts
I took the stock stuff off my XR600 and run a trail tech vapor. Has oil/water temp, tack, speed, hours, trip, and you can set shift points and whatnot too. Kinda nifty. I don’t remember them being that expensive.
 

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