Yamaha gauges won't SYNC. HELP

Joined
Apr 2, 2009
Messages
14
2001 Twin HPDI 150's. What is the wire sequence and colors for the Tachs to connect to the Fuel Managment Gauge to show SYNC? I seem to have something mixed up. The wiring diagrams are very confusing and don't explain what each wire goes to, just shows a jumbled up confusing mess. The SYNC worked before, and then I rearranged the wiring in the console to clean things up, and now, no SYNC.

Thanks
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: Yamaha gauges won't SYNC. HELP

from the FMM, green goes to stbd tach green, green/white goes to port tach green.
FMM,1 tach and the speedo must power up from 1 keyswitch.
 
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