Using Yamaha diagnostic indicator (winky Blinky)

[ransboat]

What is the proper way of using this tool on a VX225TLRY (225 Vmax)? The part number I have is 13-YB-06795. I tried it last weekend and followed the service manual, however the manual does not say what to do with the other connection on the tester. The engine ran like it was on half the cylinders and the test bulb did not flash at all. I ran the test after the engine had been runing for at least 30 minutes. I did not run the test for more than a few minutes because the engine ran poorly with the diagnostic indicator connected. Any instructions out there on how to use this thing?

 

[rodbolt]

Re: Using Yamaha diagnostic indicator (winky Blinky)

with engine off unclip the oil tank wiring at the engine oil tank, attach the lamp to the engine side of the oil tank harness.
now go find the single blue wire with a female bullet connector and a rubber cap just fwd of the engine oil tank.
remove the rubber cap and connect the lamps blue male connector to the female and retry.