Sole Man Posted May 21, 2009 Report Share Posted May 21, 2009 Hi Guys, Can anyone tell me what size hp i need for an auxillary engine on my 15ft Sea Hog Hunter boat. Any suggestions welcomed Cheers John Quote Link to comment Share on other sites More sharing options...
seaspark Posted May 21, 2009 Report Share Posted May 21, 2009 John, Have a 3.3 long shaft mercury auxilery for seaspark, although I have yet to use it. Hope for this weekend. My Boat is a 16' shetland which for size is quite heavy. As they are portable you are welcome to try it out if it fits. Chris. Quote Link to comment Share on other sites More sharing options...
charlieannear Posted May 21, 2009 Report Share Posted May 21, 2009 I've got a 4hp on my 18' Shetland Family Four (also heavy for it's size, and that's even without Rob aboard ). 4hp pushes it along in all of the conditions that I have tried, but isn't gong to win any races! C. Quote Link to comment Share on other sites More sharing options...
Mike Fox Posted May 21, 2009 Report Share Posted May 21, 2009 (edited) Hi John, A good question. A lot depends on what you do, where you go, and how you use your boat. Assuming you only go a few miles out in fair to settled weather, and your needs include the following: - iinsurance to get you home without a lifeboat call out - one that uses the same fuel or fuel mix as your main engine (saves on a separate tank etc.) - one that can use the same fuel tank connector - one with enough power to let you trundle home at a sedate 4-5 knots or so, sufficient to get good steerage in Poole entrance, for example with tide - one that could be used for trolling for mackerel and bass at 3 knots without sooting up your main engine...and economically - one that can live on a separate bracket, and can get a prop low enough to drive you home in a bit of a chop - one with a reverse gear to help "park" when you get back Seems quite a lot to ask for, but something 4-5 HP should meet many of those needs. I don't know current models well. I've moved over 4 ton of boat with a 2 hp outboard before - slowly admittedly at just over 3 knots, but in settled weather it can be done. Wonder what others would suggest? Mike Edited May 21, 2009 by Mike Fox Quote Link to comment Share on other sites More sharing options...
Sole Man Posted May 21, 2009 Author Report Share Posted May 21, 2009 Thanks Guys, I was thinking of a Honda BF 2.3 hp but was not sure if it would be man enough. Any thoughts? John Quote Link to comment Share on other sites More sharing options...
plaicemat Posted May 22, 2009 Report Share Posted May 22, 2009 Personally, I would not go below 4hp. Terry. Quote Link to comment Share on other sites More sharing options...
Freddie Posted May 22, 2009 Report Share Posted May 22, 2009 I had a 4HP once & I know that it would be more than adequate. I would use a separate fuel tank though thus eliminating any fuel problems from your main engines. I have had `tank` problems in the past & have got round it by the fact that I have two 22 litre tanks plus two small back ups which I use to top up if necessary. Freddie. Quote Link to comment Share on other sites More sharing options...
charlieannear Posted May 22, 2009 Report Share Posted May 22, 2009 My Aux has it's own fuel tank into which you put pre-mixed 2-stroke. If it runs out I have a measuring jug, petrol and 2 stroke oil on board to mix up some more. I would keep some mixed-up but I use it so infrequently... Quote Link to comment Share on other sites More sharing options...
Graham Nash Posted May 22, 2009 Report Share Posted May 22, 2009 I use a Honda 5HP 4 stroke on my 18ft Plymouth Pilot. Works absolutely fine on the very rare occasion its needed. Quote Link to comment Share on other sites More sharing options...
great white Posted May 22, 2009 Report Share Posted May 22, 2009 Always good to carry an Auxillary but if it is not going to let you down when you need it most it needs to be kept at 100% Infrequant use of any outboard, especially one with its own tank and stale fuel is not the best way to ensure it works when you need it. if the fuel gets old mix it in your main tanks or the car and put fresh in the auxillary tank. My advice use it occasionally on a tender or to slowly move the big boat when feathering, it will certainly help. Also carry spare plug, spanner and starter cord for the small enging, these tend to be the first things that go on small engines. Charlie Quote Link to comment Share on other sites More sharing options...
Jim Posted May 22, 2009 Report Share Posted May 22, 2009 I have a 4HP Suziki on my Warrior 165. I had to use it once in the Entrance to Poole Harbour. It barely beat the current and got me to the safety of Brownsea Island. Your boat is smaller and lighter, so I would think a 4 or 5 HP would be best bet. Also last year's Winter " Flatty Comp " I thought " I'm only going in the harbour - I wont need it " Guess what ? Battery failiure. Always carry it ! ! ! Jim Quote Link to comment Share on other sites More sharing options...
islander99 Posted May 23, 2009 Report Share Posted May 23, 2009 Hi Guys, I am just thinking about getting a 4hp 4 stroke Yam as an aux engine to fit a warrior 165 can anyone recommend a good bracket to use as I have no previous experience of these. Many Thanks Mike F Quote Link to comment Share on other sites More sharing options...
Sole Man Posted May 23, 2009 Author Report Share Posted May 23, 2009 Thanks for all the info, so with that in mind I went to Lymington and bought a 4 stroke 4hp Mariner .Nice little engine and came with fuel tank and hose. Cheers John Quote Link to comment Share on other sites More sharing options...
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