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Old 29 June 2004, 01:16   #1
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Country: Canada
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Boat name: n/a
Make: Avon Seasport
Length: 545
Engine: 90 Yamaha
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Gas mileage for 90 HP Yamaha 2 Stk.

Can someone give me an ideal of what the gas mileage would be for a Avon Seasport 545 with a 90 HP 2 Stroke Yamaha. (1994 boat & engine)

Thanks,
Mark
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Old 29 June 2004, 03:29   #2
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Mark hi, our club rib uses the 85 hp premix version of this engine on a humber 5.5m We recon on about 1 litre per mile at 18 knots with 4/5 divers and kit. With a bigger prop and less weight I would think the boat would eb capable of 25 knots but the fuel consumption would be similar.

Pete
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Old 29 June 2004, 14:10   #3
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Thanks Pete, that's about what I thought also.

Mark
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Old 30 June 2004, 05:00   #4
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Country: UK - England
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Engine: 10hp Yam / 150hp opt
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90hp Fuel consumption

My 90hp Mariner 2 stroke on my 5.4m Searider uses about 0.9 litres per mile - generally only run with 2 up but tend to be doing 25+ knots.
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Old 30 June 2004, 05:11   #5
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Country: Greece
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Engine: Outboard Mercury 115
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Usually Yamahas are less thirsty than Mercs & Mariners. 1 lit/mile for this boat is more than the average. But if you want to be on the safe side you may do your calulations with this consumption.
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Old 30 June 2004, 17:35   #6
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One litre per mile for us
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