Fuel useage good or bad for a 2 stroke.

Lightningx
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Re: Fuel useage good or bad for a 2 stroke.

Postby Lightningx » Tue Jun 12, 2018 11:01 am

Yep that’s what I’d probably do as well :thumbsup:



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frozenpod
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Re: Fuel useage good or bad for a 2 stroke.

Postby frozenpod » Tue Jun 12, 2018 12:17 pm

At 17-20k for a new 4 stroke you can buy a hell of a lot of fuel.

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Re: Fuel useage good or bad for a 2 stroke.

Postby frozenpod » Tue Jun 12, 2018 12:21 pm

repspec wrote:5.6mtr trailcraft with a 115 johnson 2 stroke carby... pretty spot on for the fuel usage id suggest.


Sorry mate I cant agree with that, the fuel consumption is close to double what it should be the for the motor and hull.

Pretty clear there are issues with the setup, as previously reported running rough, stalling and a plug lead fell off during this trip.

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Re: Fuel useage good or bad for a 2 stroke.

Postby purple5ive » Tue Jun 12, 2018 12:25 pm

Ricky - just get it f@cken serviced by a reputable person rather than pissfarting around with it mate..
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Re: Fuel useage good or bad for a 2 stroke.

Postby smile0784 » Tue Jun 12, 2018 12:50 pm

repspec wrote:5.6mtr trailcraft with a 115 johnson 2 stroke carby... pretty spot on for the fuel usage id suggest.

They are a carby engine that on a 5.6mtr boat, is underpowered (in my opinion 13yr marine mech) (it will be withing their recommended HP range, but its on the lower end id suggest). Also depends on the weight of the boat, how much gear you had, how many people, what sort of conditions you were in, how old the fuel was, quality of the fuel...i could keep going.

Most new fourstrokes are getting 1.5+km per litre. You have a 2 stroke carby, using 1-1.5ltrs per km...id be happy with that. If you are expecting more from it...you are going to be dissapopinted.
Easy soultion...fit a new motor to the max hp of the hull... ;)


Wish i had the money for a 4 stroke

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Re: Fuel useage good or bad for a 2 stroke.

Postby smile0784 » Tue Jun 12, 2018 12:52 pm

frozenpod wrote:At 17-20k for a new 4 stroke you can buy a hell of a lot of fuel.


Considering i only go through about $1000 or so a year thats over a decade of fishing



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Lightningx
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Re: Fuel useage good or bad for a 2 stroke.

Postby Lightningx » Tue Jun 12, 2018 12:54 pm

Then It’s prob not worth it in your case then...

repspec
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Re: Fuel useage good or bad for a 2 stroke.

Postby repspec » Tue Jun 12, 2018 1:11 pm

the new 4 stroke was a tongue in cheek remark... i understand people cant afford that... It was more a "you want to use less fuel...buy a new fourstroke" comment...
i still think for the boat specs you have given us...i dont see you using less fuel. Unless you have noted the same exact conditions and a different reading...its pretty close to what you would expect.

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Re: Fuel useage good or bad for a 2 stroke.

Postby smile0784 » Tue Jun 12, 2018 1:55 pm

repspec wrote:the new 4 stroke was a tongue in cheek remark... i understand people cant afford that... It was more a "you want to use less fuel...buy a new fourstroke" comment...
i still think for the boat specs you have given us...i dont see you using less fuel. Unless you have noted the same exact conditions and a different reading...its pretty close to what you would expect.


Ah gotchya now

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Re: Fuel useage good or bad for a 2 stroke.

Postby Duffman » Tue Jun 12, 2018 2:14 pm

With all the specs and information you have given, I don't think you are going to get much better economy. Servicing, fresh fuel and maybe a prop change to get you revving to maybe 5800 rpm at wot may get you 10 to15 percent better overall. You have to remember it's a carbi 2 stroke. Maybe talk to a service centre that does racing engines as they have the technology and knowhow to get the best out of your rigs setup. ie max economy and power from the engine and also water drag on engine/prop and hull. Best of luck. :thumbsup:



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