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Old 16 July 2013, 04:52   #11
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Can I get a lighter 60-80Ah battery than the 100 year old lead-acid technology?
It seems that 60Ah is a minimum if you want the engine to run for 3-4 hours.
Yes that is what the Toquedo uses which is why it is considerably more expensive! 60Ah for 4 hrs even at low speed seems very optimistic. Even assuming that you have a battery type that doesn't "mind" being run completely flat and the engine can get enough oomph from a nearly dead battery. If my mental arithmetic is right 60A is roughly 1 HP. These are good for little fishing boats on lochs/lakes where they do 10-15 minutes and then sit still for a while then a few minutes every hour and then 15 minutes to go back ashore at the end of the day. Backed up by a set of oars. I also think that to get good life from the battery you would need an expensive (fancy) charger.
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Old 16 July 2013, 12:52   #12
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After a bit of internet investigation it looks like the Suzuki DF 2.5 four stroke outboard is the one to go for, it only weighs 12.5kg.
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Old 16 July 2013, 12:55   #13
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After a bit of internet investigation it looks like the Suzuki DF 2.5 four stroke outboard is the one to go for, it only weighs 12.5kg.
Had one for a few years..just brilliant little engine.
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Old 20 July 2013, 07:02   #14
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Are the Mariner 2.5hp two stroke engines any good? There's a couple on ebay at the moment.
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Old 20 July 2013, 10:07   #15
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ref the electric thrusters (I used to call them egg whisks) as a rule of thumb 17pounds thrust is equal to one h/p. When they went wrong I used to put them in a corner out of the way and forget them (hated the bloody things)
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Old 22 July 2013, 03:01   #16
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Hi

couple of things re this post

Pollys comment of
Quote:
If my mental arithmetic is right 60A is roughly 1 HP. These are good for little fishing boats on lochs/lakes where they do 10-15 minutes and then sit still for a while then a few minutes every hour and then 15 minutes to go back ashore at the end of the day. Backed up by a set of oars.
This is v v true but very understated. The rules on some of the lochs up here will not let you run any petrol engine and hence a few fishermen decided to use them as their auxiliary when sea fishing to save money and got into serious trouble.

the smaller the engine the more it suffers from getting clogged up so before you take anyone's word for it try the Honda 2.3. It is the lightest in the world, single handed control, comes with spare shear pins etc and will run for about an hour on 1 litre of fuel at full throttle. as it is also air cooled no gunk to pick up either.

re the mariner : this is the same as the tohatsu and made by Nissan along with the mercury and is a cracking wee engine. Not as light as the Honda or air cooled but not a bad wee thing.
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Old 22 July 2013, 03:13   #17
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the smaller the engine the more it suffers from getting clogged up so before you take anyone's word for it try the Honda 2.3. It is the lightest in the world, single handed control, comes with spare shear pins etc and will run for about an hour on 1 litre of fuel at full throttle. as it is also air cooled no gunk to pick up either.
Certainly fuel efficient - I used to own one on a small dinghy and it used one 5L can of fuel the entire time I owned it! However buy yourself a set of these:
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Old 22 July 2013, 03:25   #18
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Certainly fuel efficient - I used to own one on a small dinghy and it used one 5L can of fuel the entire time I owned it! However buy yourself a set of these:
sorry that is rubbish. we sell a huge amount of these and we dont need to raise our voices when they are on. I would also add that we have never lost a sale due to this.

The only downside I can see is that there is not a 5hp lightweight air cooled engine as we would sell lots of those as well.
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Old 22 July 2013, 03:44   #19
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Have to agree with Poly on this also the build quality of the wee honda is not good also personally I would stear clear!
I think most Marine engineers would agree with that and it feels great when you throw them into a skip
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Old 22 July 2013, 06:24   #20
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I am glad the commercial guys disagree and a huge number of fishing guys leisure boaters and sailors disagree. Its also our biggest selling engine by miles and it also has the longest warranty of any of the small petrol outboard engines on the market.
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