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Forum: Engines and Propulsion Systems 15-10-2021, 16:56
Replies: 50
Views: 8,499
Posted By Wotname
Re: Yanmar “Idiot” Lights Upgrade

Not needed but nice to have. The decompression levers are mostly used when doing engine maintenance - again not necessary, just makes turning the engine by hand much easier.

However they can be...
Forum: Engines and Propulsion Systems 14-10-2021, 23:53
Replies: 50
Views: 8,499
Posted By Wotname
Re: Yanmar “Idiot” Lights Upgrade

Of course the oil light is illuminated before every engine start but yes, the temperature light can be problematic as very few of us actually test the temperature light let alone the temperature...
Forum: Engines and Propulsion Systems 13-10-2021, 18:30
Replies: 50
Views: 8,499
Posted By Wotname
Re: Yanmar “Idiot” Lights Upgrade

OK, here is the definitive answer.

Short version - If you are using a LED for the charge warning lamp you can add a 50 ohm 5 watt resistor in parallel with the charge warning lamp. This will...
Forum: Engines and Propulsion Systems 13-10-2021, 15:21
Replies: 50
Views: 8,499
Posted By Wotname
Re: Yanmar “Idiot” Lights Upgrade

I'll get back to you latter today with a suitable (but simple) solution if you plan to use a LED with a 2QM15 stock alternator. I'm time short ATM.

Does your new alternator use the same wiring and...
Forum: Engines and Propulsion Systems 13-10-2021, 15:18
Replies: 50
Views: 8,499
Posted By Wotname
Re: Yanmar “Idiot” Lights Upgrade

Short answer - It depends on the circuitry packaged with the LED.

Long answer - A 'native' LED is polarity conscious and also needs a load resistor to operate on 12V. A LED sold as a 12V LED will...
Forum: Engines and Propulsion Systems 13-10-2021, 15:13
Replies: 50
Views: 8,499
Posted By Wotname
Re: Yanmar “Idiot” Lights Upgrade

The 2QM15 does utilise a stop cable. When pulled, it allows the throttle arm to throttle back even further than when at idle. See the attached images. The red line is the stop cable, the green line...
Forum: Engines and Propulsion Systems 11-10-2021, 14:47
Replies: 50
Views: 8,499
Posted By Wotname
Re: Yanmar “Idiot” Lights Upgrade

While waiting for Homer to advise what he did, let me say the over temperature light and the oil pressure light can be LED. You do have to make sure they are connected the correct way as they are...
Forum: Engines and Propulsion Systems 20-09-2018, 19:02
Replies: 50
Views: 8,499
Posted By Wotname
Re: Yanmar “Idiot” Lights Upgrade

Hey Compass, you are right and I am completely wrong (again :frown:)...

Maybe I should hand in my CF password :wink:
Forum: Engines and Propulsion Systems 20-09-2018, 15:07
Replies: 50
Views: 8,499
Posted By Wotname
Re: Yanmar “Idiot” Lights Upgrade

You might remember the OP is not planing to change the alternator light, only the oil and temp light.

FWIW, if the OP is still using the original external regulator, this might well have a bypass...
Forum: Engines and Propulsion Systems 19-09-2018, 17:03
Replies: 50
Views: 8,499
Posted By Wotname
Re: Yanmar “Idiot” Lights Upgrade

Can't open the link here but in general, if the LED is designed for 12V operation and you get the polarity correct, then it will work.

However, the devil is always in the detail and in this...
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