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Old 03 June 2015, 19:20   #1
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Recommended or maximum outboard

Hi all,

I own a Funyak 450 poly type boat, she has a V hull that flattens out towards the rear, an older gentleman had it before me and he had a Honda bf10 on it as he only ever used it on the river, I use it on coastal waters and the 10 is ok but it takes forever to go even short journeys, ( kids get bored) I've found out that she can take a 50hp (100kg) but 30hp is recommended, now where I use it, flat glass days are very rare so I'm not sure if I should put a slightly overweight 50hp four stroke on the transom and rarely ever get to open her up, or should I obey the manufacturers recommend 30hp? I dont know anyone around here with a 50 that I can ask, so what to do?
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Old 04 June 2015, 02:47   #2
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Hi all,

I own a Funyak 450 poly type boat, she has a V hull that flattens out towards the rear, an older gentleman had it before me and he had a Honda bf10 on it as he only ever used it on the river, I use it on coastal waters and the 10 is ok but it takes forever to go even short journeys, ( kids get bored) I've found out that she can take a 50hp (100kg) but 30hp is recommended, now where I use it, flat glass days are very rare so I'm not sure if I should put a slightly overweight 50hp four stroke on the transom and rarely ever get to open her up, or should I obey the manufacturers recommend 30hp? I dont know anyone around here with a 50 that I can ask, so what to do?
i would go 30hp sounds like your hull has a planing pad at the stern. there's a guy selling these boats near me might be worth talking to him google Morton boats in Lincolnshire he is a tohatsu dealer, Ron hale marine are selling 30hp new at around 2900.00
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Old 04 June 2015, 03:37   #3
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We have poly boats over here in Aus, Ive found they are quite popular as hire boats, I almost bought one a few years ago but found they need to be powered quite high compared to the same sized alloy or glass boat.

Here you would be looking at a 60 hp on a 4.5 m poly boat 4.50 Drifter | Polycraft from what Ive heard they cause greater drag and the ones Ive seen tend to be very scratched due to the softer hulls being dragged on sand etc. Always better to go to manufactures max meaning you can scoot along without thrashing the guts out of your engine at max rpm. There may come a day where the kids want to be towed in a tube or ski.



Ive got poly kayaks and fibre glass kayaks the glass one are so easy to paddle as well as lighter to carry.

Jon
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Old 04 June 2015, 05:01   #4
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i would go 30hp sounds like your hull has a planing pad at the stern. there's a guy selling these boats near me might be worth talking to him google Morton boats in Lincolnshire he is a tohatsu dealer, Ron hale marine are selling 30hp new at around 2900.00
Hi,
my head is thinking 30hp will be grand but my heart is saying 50hp would be fun, I sent an email to Paul Morton before asking for help in figuring out the boats age but never heard back? Managed to figure it out myself with a bit of searching in the end... Boat was 8 years old but seller said it was 3, overpaid slightly but seller wasn't being deceitful, just going on what he was told by first owner ( hire company), cheers
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Old 04 June 2015, 05:15   #5
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We have poly boats over here in Aus, Ive found they are quite popular as hire boats, I almost bought one a few years ago but found they need to be powered quite high compared to the same sized alloy or glass boat.

Here you would be looking at a 60 hp on a 4.5 m poly boat

Jon
Hi, I been thinking about the drag and looking at the hull it has a nice bit of damage at the rear where it looks like it came off a trailer on the road, also its trailer has rollers not bunks, rollers are great for launching and recovery but the rollers are deforming the hull, which isn't smooth and shiny like the polycraft in that video, sounds like I'll need the power ... Can't justify a new 50hp though... Is a used midrange outboard a gamble?
Cheers
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Old 04 June 2015, 05:18   #6
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Hi,
my head is thinking 30hp will be grand but my heart is saying 50hp would be fun, I sent an email to Paul Morton before asking for help in figuring out the boats age but never heard back? Managed to figure it out myself with a bit of searching in the end... Boat was 8 years old but seller said it was 3, overpaid slightly but seller wasn't being deceitful, just going on what he was told by first owner ( hire company), cheers
Ron

just looked one on Ron hale marine the tohatsu 50 @ 97kg & 30 71.5kg go 50 for the weight difference on eBay at the moment

cheers jeff
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Old 04 June 2015, 11:34   #7
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I run your boats baby brother. mine is rated for 30HP max, and recommended 20HP. Lightly loaded the recommended is absolutely fine. I've occasionally thought a knot or two more might be nice, but I've never regretted it (or the extra that 50% more power would cost). I do sometimes wish I had power trim (mostly so you can easily deal with a head sea). You will find many people on here who always suggest the max power - there is a logic to it, but of course they'll never have driven your boat.

50 could be very lively on the 450.

I don't know what state your hull is in - sandpaper and careful use of a heat gun can refresh the surface (google kayak repair). Id be surprised if the surface finish was making the difference between wanting 30 and 50 HP.
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Old 04 June 2015, 14:07   #8
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Hi , I spent ages researching the 390, but couldn't find one local to have a go in, hired out a whaly 435 instead and liked it so then went searching for one of them, no luck... one day a grey 450 popped up with stainless bow rails and a nice trailer, so jumped at it without thinking too much about the fitted engine only being 10hp, maybe I should halve the difference and look for a 40 instead ? Can't afford new so searching used ads at present
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Old 04 June 2015, 14:07   #9
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Am I the only one thinking 40
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Old 04 June 2015, 14:12   #10
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Am I the only one thinking 40
*Snap!*
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