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Old 15 September 2005, 09:36   #1
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Yam F100 4 stroke - fuel consumption

What fuel consumption are other people with Yam 100 4 strokes getting on their boats please?

Alternatively any advice on what I should plan for very, very very approx. Assume full throttle. 6m boat.

Never bothered with it before (just keep on filling), but need to plan fuel for a cruise.

Thanks!

Rich L
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Old 15 September 2005, 10:08   #2
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Country: Netherlands
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Boat name: smokkelaer
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Wot 31 liters an hour.
Cruising 16 liter at 3500 rpm. 40 kmh.
Buster Boat 5 meter 550 kilo's total.
That's 2.5 kilometers per liter.
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Old 15 September 2005, 10:36   #3
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Average cruising consumption ( not WOT ) just slightly better than 1 litre/nm.
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Old 15 September 2005, 16:03   #4
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Rich,

I used to get 2-2.5 galls per hour cruising at all speeds but favouring about 4-4500 rpm(max 5600-6100) on a Humber assault 5.7-0.55 too 0.85 miles per litre

see http://www.yamaha-motor.com/outboard...px?ls=outboard for more details on a range of boats but bear in mind they quote U.S. gallons
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Old 16 September 2005, 06:19   #5
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We had a F100 4stroke on a Avon 560 (fantastic)
I agree with bern 1 lt a nt mile.
I did portsmouth to cherbourg with Biboa almost flat out there and back
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Old 16 September 2005, 12:43   #6
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Thanks for that.
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