Fuel consumtion

[Jalova]

Hello to all, I just have a question to people who may have similar size boat.
I have a 17 1/2 foot fibreglass half cabin with a 130 newish yamaha outboard on the back and I have a 100 litre fuel tank.

I know that it will depend on sea conditions and how you use the throttle but does anyone know roughly how many k's I would get out of the tank ??

Th reason is that I want to start doing a few trips to Caloundra wide and the deep tempest and I don't want to run out of fuel.

Any help would b great.

Cheers.

[timddo]

forget deep tempest

I have a 115 2 stroke and on a good day i would use 90L.

130 is approximately 1km/l

I get 1.5 km /l in good condition.

[thelump]

agree with Tim 1lperK

[Vitamin Sea]

agree with Tim 1lperK

Ditto, Ditto

I would count on 1 km/L, unless of course it's a HPDI

Cheers

VS

[Thedoc]

I have 6.1m mustang fibrelass 200 hp Merc efi and use 1.13 litres per km you have to be doing better than that. Especially if 130 hp.

[Scott nthQld]

possibly the most important factor in determining fuel consumption has been left out here.

What type of outboard is the yammie? EFI 2str, HPDI 2str, or 4str? Fuel consumption is a big issue when travelling long distances, try shorter trips in rough and calm conditions and take an average to give you a rough guide and always take more fuel than you think you need. For example, I can travel 44mile on 20L of fuel (4.8m quinnie 60 4str yammie) doing a regular trip but I always take around 40L, one day I might go a bit wider, others I might do more trolling, but at least I know I've got spare fuel there if I need it. I'm, not saying take twice the amount, but I would consider taking enough spare to complete a one way trip from the furthest point

[Cheech]

You should be able to do the trips. Just take a couple of plastic 20l jerry cans. You can go a long way on that if you do happen to run out on teh way back.

I permanently keep one 20l can on the boat up near the bow, even though I have a 140l tank. Very comforting to know I have a reserve, and helps give a better ride with the extra weight in the nose.

If in doubt, do a tempest run first as you are close to the Island, and traveling in the bay for a big chunk of the time.

[Jalova]

Thanks the info,
It's a 130 hp saltwater series 2 stroke, that's about all I know about it. I carry 25 litre jerry can of fuel also.

Cheers.

[Alchemy]

I had one of these on a 6m Quinny, and the estimates of 1l/km were what I experienced too. If it was rough, then it could be significantly worse. Eg, one day we ran from Urangan to Kingfisher Bay which is about 20km. We used 60 litres, but we pushed into a 25kn s.e. with a rising tide.

Regards,
Dave.

[honda900]

Jalova,

as the others have said, 1km per litre offshore in a moderate swell, I had an 06 from new and it used 27-32 LPH, from the fuel flow meter @ 4000 rpm (most ecmomical rev range) on a 6 metre glass boat.

BTW the motor is solid as a rock..

Regards
Honda..

[Skusto]

yeah mate i dont think u would get back.. we use when we leave from scarbrough about 75l to a 140k trip. and thats with a 115 fourstroke yamaha so u would be pushing it take about 150l by the looks and u should be safe.

[Outsider1]

Jalova,

as the others have said, 1km per litre offshore in a moderate swell, I had an 06 from new and it used 27-32 LPH, from the fuel flow meter @ 4000 rpm (most economical rev range) on a 6 metre glass boat.

BTW the motor is solid as a rock..

Regards
Honda..

that matches pretty well a F & B test of the 130hp Yammy on a 542 Haines Sig. You will find the test with Fuel figures here;

http://www.seamedia.com.au/sea_libra...nes_drives.php

3500 to 3700rpms would be the better economical cruise speed but conditions are going to dictate ultimate economy.

If you had a 150 litre tank you would have no problems I reckon, 100 litres just is not enough to give the required safety margin.

Cheers

Dave