Yellow to Gray to Test Tach??

[njm_T160]

Hello,

1998 Merc\Force 40 HP (OE339847).
Tach stopped working. Have read through past posts til my eyes bled. Here is what I've learned... If you connect the gray wire to one of the yellow ones off the stator, you will be sending the tach the same ac signal? Do you leave both yellow wires connected during this test and simply splice the gray to a connected yellow?
Have read where the signal from the gray and yellow wires is pretty much the same. Is that correct? If so, can one leave to spliced gray \ yellow wires hooked up in definitely without ruining something??
Sorry to be so thick, but I'd hate to burn out my electronics. Any help would be greatly appreciated! Thanks...

 

[fucawi]

Re: Yellow to Gray to Test Tach??

you have two wires ( or 3) off your stator ..yellow ..these go to your terminal strip ...The grey tacho wire is linked to one of the yellow stator wires often via a link on the terminal block.. This goes to your tacho ...sometimes selecting the other yellow wire works better. Unless you link the two yellows you will do no harm

 

[shakazulu]

Re: Yellow to Gray to Test Tach??

Can this be aplied to Force 125 ? Where should the signal wire from tach connect? Thank you

 

[njm_T160]

Re: Yellow to Gray to Test Tach??

you have two wires ( or 3) off your stator ..yellow ..these go to your terminal strip ...The grey tacho wire is linked to one of the yellow stator wires often via a link on the terminal block.. This goes to your tacho ...sometimes selecting the other yellow wire works better. Unless you link the two yellows you will do no harm

fucawi,

Thanks for your reply. My motor (pontoon boat) has no terminal block that I am aware of. The yellow stator wires run directly into the VR. From the VR the wires connect (via plugs and butt-splices) to the main harness. But judging from your reply, it would be OK to splice the gray to one of the yellows going into the VR.

Thanks Again,
-Nels

 

[fucawi]

Re: Yellow to Gray to Test Tach??

yes

 

[njm_T160]

Re: Yellow to Gray to Test Tach??

yes

Thank you for your patience...and help!