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Old 02 February 2009, 11:47   #1
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Engine: What is it worth

Thinking, only thinking of changing the 115hp to something more economical but to even have a window shop would need to know what the engines worth to sell.
Yamaha 115 V4 1983
long
19" prop
Fair cosmetic condition

Any ideas ?
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Old 02 February 2009, 12:13   #2
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Thinking, only thinking of changing the 115hp to something more economical but to even have a window shop would need to know what the engines worth to sell.
Yamaha 115 V4 1983
long
19" prop
Fair cosmetic condition

Any ideas ?
Hard to say on something that old. I'd guess at 800-1200 but it depends on the market at the moment.
To be fair to it, you'll prob use about the same fuel as I do for the same speeds. It's only at WOT that it'll make a difference. You'd need an Etec or an Opti to save anything worth bothering with on fuel.
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Old 02 February 2009, 12:17   #3
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Hard to say on something that old. I'd guess at 800-1200 but it depends on the market at the moment.
Cheers

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To be fair to it, you'll prob use about the same fuel as I do for the same speeds. It's only at WOT that it'll make a difference.
Do ya think? I've not enough experience with it to tell how much it drinks. I'm going purely off what I've read and thought with the age it must be using a tad more than that.
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Old 02 February 2009, 13:13   #4
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Cheers

Do ya think? I've not enough experience with it to tell how much it drinks. I'm going purely off what I've read and thought with the age it must be using a tad more than that.
It's carbed 2 stroke...they all drink a bit!
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Old 02 February 2009, 13:16   #5
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It's carbed 2 stroke...they all drink a bit!
Oh yeah, to be expected but thought lessening the HP and weight would help. Do ya think it wouldn't be noticeable N'mile per litre?
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Old 02 February 2009, 13:31   #6
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Do ya think it wouldn't be noticeable N'mile per litre?
Maybe-but not a lot unless you run at WOT all the time.
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Old 02 February 2009, 13:58   #7
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I had a 90HP Johnson V4 carbed engine on my last Rib when I bought it. Admitadly a few years youger than your Yamaha however it returned about 36 litres per hour at WOT. (36 knots)

I then had a 115 E-tec fitted to the same Hull and got about the same performance but at higher speeds (40 knots) due to the extra power. To be fair there was not a huge amount in it. Especially at cruising speeds of 25 knots

I would say stick with what you have if its running well.

If you want to know your fuel usage then fit one of these

http://www.consumersmarine.com/modpe...=3001&i=380071

It has a sender that you fit inline just before the engine and gives an accurate reading of current usage, trip fuel etc.

Handy if you are planning some longer trips.
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Old 02 February 2009, 13:58   #8
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Maybe-but not a lot unless you run at WOT all the time.
No chance
As always mate, thanks for the good advice!
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Old 02 February 2009, 14:00   #9
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I had a 90HP Johnson V4 carbed engine on my last Rib when I bought it. Admitadly a few years youger than your Yamaha however it returned about 36 litres per hour at WOT. (36 knots)

I then had a 115 E-tec fitted to the same Hull and got about the same performance but at higher speeds (40 knots) due to the extra power. To be fair there was not a huge amount in it. Especially at cruising speeds of 25 knots

I would say stick with what you have if its running well.

If you want to know your fuel usage then fit one of these

http://www.consumersmarine.com/modpe...=3001&i=380071

It has a sender that you fit inline just before the engine and gives an accurate reading of current usage, trip fuel etc.

Handy if you are planning some longer trips.
Thanks Chris, maybe a worth wail thing to get.
How's your wifes photography going?
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Old 02 February 2009, 14:51   #10
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She's having fun getting to know the camera and has had soe good results.

I on the other had am completely useless finger in front of the lense. flash etc.

Complete camera numpty
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