Hooking up hour meter, need run signal

[Old Crow]

I want to hooking up a KOSO hour meter to a 04 Yamaha F115TLRC

Where can I get a run signal from?
I thought hooking it to the tach wire but it continued to totalize with the engine off

 

[Eagle180]

Re: Hooking up hour meter, need run signal

I found this link for when I connected my hour meter for my Yahama F115TLR 4 Stroke... I used the YELLOW ignition wire for whenever the key is 'on'. Granted, if your working on something and the key is just 'on' and engine not running, your meter is accumulating time, however, I try and keep a log for stuff like that.

http://continuouswave.com/whaler/reference/wireColorCode.html#Yam

 

[rodbolt]

Re: Hooking up hour meter, need run signal

engine run signal will be the dark green wire from the keyswitch for the tach.
yellow is key on power and black is ground.

 

[Old Crow]

Re: Hooking up hour meter, need run signal

This KOSO hour meter has a internal battery and has only one wire which is the sensing wire.
You are supposed to wrap it around a spark plug wire. The meter will start to operate automatically after you start the engine and record the time after 1 second.

I hooked the sensing wire to the dark green tach signal which it worked but when I shut the engine down and turned power on to the accessories (GPS, lights, bilge & livewell pumps) the meter started to totalize again.

I wonder if I need some type of resister or something in the sensing line to hide the stray voltage

 

[rodbolt]

Re: Hooking up hour meter, need run signal

why not either hook it up the way the instructions say,failry simple, buy the yamaha hour meter and its plug and play or simply use the correct yamaha digital tach that has a built in hour and trip hour meter.