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  2000 Yamaha F115 Fuel Usage Metering

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Author Topic:   2000 Yamaha F115 Fuel Usage Metering
FISHNFF posted 02-12-2012 12:54 AM ET (US)   Profile for FISHNFF   Send Email to FISHNFF  
Does a 2000 Yamaha F115 outboard engine manufactured in December 1999 have the proper means of reading fuel usage to send it to a Yamaha fuel management meter?--FISHNFF
jimh posted 02-12-2012 10:48 AM ET (US)     Profile for jimh  Send Email to jimh     
It is unlikely that a 2000 Yamaha F115 outboard engine has a control computer which can send data to the modern Yamaha digital gauges. Check with a good Yamaha dealer to verify. I think the older F115 engines just have a fairly simplistic electronic control of the fuel-injectors. To deduce the fuel flow volume you need a precisely controlled injector and knowledge of the fuel characteristics of the injector.
sosmerc posted 02-12-2012 08:22 PM ET (US)     Profile for sosmerc  Send Email to sosmerc     
Or you could use a Floscan meter.
Jefecinco posted 02-13-2012 08:25 AM ET (US)     Profile for Jefecinco  Send Email to Jefecinco     
If you have a [multi-function display] on the boat, you may be able to add a fuel flow transducer to your engine fuel supply line, and connect it to the [multi-function display]. I believe Garmin and Lowrance market a fuel line transducer meant for their units.--Butch
FISHNFF posted 02-13-2012 11:49 PM ET (US)     Profile for FISHNFF  Send Email to FISHNFF     
I had a NavMan 2100 FUEL flow meter. It never read correctly, despite attempts to recalibrate. After about a year, the wire broke where it entered the transducer. May try another. I have the gauge in the dash. At least I replaced my deck gauge with a new dial that works.
jimh posted 02-14-2012 02:15 AM ET (US)     Profile for jimh  Send Email to jimh     
I used a NAVMAN 3100 FUEL instrument. Its measurement of fuel flow was very accurate. No wires broke during the many years of its use.
sosmerc posted 02-14-2012 11:26 AM ET (US)     Profile for sosmerc  Send Email to sosmerc     
I had a Floscan in my 18 Whaler and found it to be quite accurate. Much better than a conventional fuel guage.
acseatsri posted 02-16-2012 08:15 PM ET (US)     Profile for acseatsri  Send Email to acseatsri     
I've had a Northstar F2100 fuel flow meter now for 4 years. Best investment I ever made for the boat. On a 65 gallon fillup, it's always within 1.5 gallons of the reading on the gas pump.
It showed me when I had a layer of slime on the boat bottom due to higher burn rates at the same speeds.

It extends my fishing trips not worring about how much fuel I think I have left. It saves fuel by dialing in the trim tabs and the most economical cruise speeds.

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