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Old 07 March 2021, 03:32   #1
Member
 
Country: UK - Wales
Town: Llanfairfechan
Boat name: N/a
Make: Avon sea rider 5.4
Length: 5m +
Engine: Tohatsu 90
Join Date: Mar 2021
Posts: 16
Buying an Avon SR5. 4 mod soec

Good morning chaps! I'm new to the forum but after some advice.

I am looking at buy an Avon Sea rider 5.4m MOD spec
It's in good overall condition.
Very good condition Snipe trailer
2006 Tohatsu 90 2 stroke with only 20 hours use.
Boat just needs a clean and to see the light of the day been dry stored for 2 years.
Vhf, gps etc
We have agreed on £6000.00 depending on sea trail.

So my question is that a good price?

Please find attached pictures, obviously needs tubes blowing up etc.

Any thought about the sea riders are they good boats?
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Old 07 March 2021, 05:14   #2
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Country: UK - Scotland
Town: Scotland
Boat name: Clyde adventurer
Make: Humber
Length: 8m +
Engine: Twin Merc 150 4str
Join Date: May 2015
Posts: 242
Imo if all works thatís a great deal. Itís a classic. Land Rover of the sea.
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Old 07 March 2021, 06:54   #3
Member
 
Country: UK - Wales
Town: Llanfairfechan
Boat name: N/a
Make: Avon sea rider 5.4
Length: 5m +
Engine: Tohatsu 90
Join Date: Mar 2021
Posts: 16
Thanks for the quick reply. Yeah he has said he will guarantee that everything is all working . I just want a solid reliable well handing rib .
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Originally Posted by Iankristy View Post
Imo if all works thatís a great deal. Itís a classic. Land Rover of the sea.
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Old 07 March 2021, 08:38   #4
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Country: UK - Scotland
Town: Scotland
Boat name: Clyde adventurer
Make: Humber
Length: 8m +
Engine: Twin Merc 150 4str
Join Date: May 2015
Posts: 242
Quote:
Originally Posted by TheAmusedDragon View Post
Thanks for the quick reply. Yeah he has said he will guarantee that everything is all working . I just want a solid reliable well handing rib .


If you can get tubes blown up and left a few days would give you piece of mind. Would cost you same again to retube if any issues
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Old 07 March 2021, 08:45   #5
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Country: UK - Wales
Town: Llanfairfechan
Boat name: N/a
Make: Avon sea rider 5.4
Length: 5m +
Engine: Tohatsu 90
Join Date: Mar 2021
Posts: 16
Yeah hoping to get the pumped up soon , they look in good condition, no rips or holes and all the seems look good
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Old 07 March 2021, 10:17   #6
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Country: UK - Scotland
Town: Aberdeenshire
Boat name: Sula
Make: Ribcraft 4.8m
Length: 4m +
Engine: Tohatsu 60hp + aux
MMSI: 235087213
Join Date: Jun 2007
Posts: 4,074
RIBase
A lot of boat for the money. Built like a proverbial sh*t brick-house.

On the engine side, interested to know why just 20 hours? Tohatsu are a bit agricultural but very well engineered in my opinion. Even if this was connected to a hour-meter I would take that with a pinch of salt, as I'm assuming it was on another boat at some point in 15 years?

Drop the leg for sure and get the impeller and gear oil changed before you do anything. The thermostat is on the top cylinder, and the housing itself is a good gauge of the environment it's been in. There should be an anode in there too to check. If the oil has any emulsification, then rebuild water-pump, and always fit new drain and fill washers.

You can also run a compression test on each cylinder for peace of mind. All cylinders should be the same in terms of compression, give or take a few PSI.

The leg should raise and lower and no weeping on the rams. Again you can check the fluid level. If it needs topping up use Mobil 220 ATF.

Before running it on muffs, take each spark plug out and squirt in some fogging oil. If it's just done 20 hours, those bores could be as dry as the Kalahari and you risk snapping a piston ring from a standing cold start!

I'd also be interested to know if fuel is in the carbs, or if it was starved until it stopped. There's a brass hexagonal fuel drain on each carburetor, so drain them. They should run clear, no sediment. If it's been laid up, then the fuel is potentially stale and you risk gumming.

There's a fuel bowl on the side of the engine, remove that and clear the filter and refill with fresh petrol. Also check the 2-stroke oil in the reservoir.

Lube all the grease nipples too.

Parts diagram here: Tohatsu parts for M90A
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Old 08 March 2021, 04:38   #7
Member
 
Country: UK - Wales
Town: Llanfairfechan
Boat name: N/a
Make: Avon sea rider 5.4
Length: 5m +
Engine: Tohatsu 90
Join Date: Mar 2021
Posts: 16
Thanks for the reply Spartacus,

Im glad they are good boats, i just want something that is going to handle most stuff i can throw at it.

I spoke to the owner and he said the reason why the engine has only down 20 hours is that, when he bought the boat he wanted to put a new engine on it , and was able buy new old stock engine, so he bought the engine 3 years ago used it for one summer , then put it into storage. This is a man who is a multi-millionaire and has about 10 different boats and jet skis, he is also the type of bloke to use the best quality stuff,

As far as the owner can tell me is that the boat lived most of it life on the back of a fisheries patrol ship, so has only been occasionally used, thus the hull is mint.

Appreciate the advice, i will definitely check all those things first. i don’t know if the carbs where drained before storage but i guess i will find out when it comes to starting.

Would there be any benefits to swapping the motor for a 2 stroke 90hp Yamaha, or just keep the Tohatsu?


Do you know if there is anything particular i need to check on the rib, transom, rot etc?



I acnt wait to get it out on the sea!


The price is without VAT.
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