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Old 01 November 2013, 05:59   #11
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Country: Other
Town: Nairobi
Boat name: Mwaozi Tumbe
Make: Presteige
Length: 4m +
Engine: Yamaha 90HP
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Originally Posted by indaba1991 View Post
Engine bits


Owners Manuals | Yamaha Outboards

If you go on the Yamaha Outboards website there is also a good number of support pages on early models plus free manuals. I also found good help on the Q&A section.

Good luck on the restoration! Great place Kenya - but watch out for the crocs!!
Cheers guys great stuff. And Hippos are the issue not so much crocs - had a close encounter while dragging this old girl out the marsh! We had 12 people in that boat very quickly!

Will check out the yamaha site.
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Old 01 November 2013, 06:03   #12
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Boat name: Mwaozi Tumbe
Make: Presteige
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Hi it's a power trim and tilt, very expensive to replace but well worth having a go at repairing your self.
One of my jobs to do on my Yami 50 is to strip down the power tilt as it drops down over night if left
Tubes look much better after the wash, need to get some air in them and with all that gunk around them makes me think they may be your problem!
If you do not have a pump, one idea would make up a set of bellows would be straight forward to do, or if you have a vacuum cleaner the revers the polarity on the motor so it blows in stead of sucks
Or one other idea would be to use the exhaust from the Landy to blow it up, works on lifting air jacks!
Is the floor fibreglass?
Great engine those yami 90s
I like the land idea! We don't have hoovers here they have not made the trip across the sea. - Could make it using some hose pipe and tape?!
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Old 01 November 2013, 06:05   #13
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Loving the scenery , now that's a find out there,,
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Old 01 November 2013, 06:26   #14
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Country: Other
Town: Nairobi
Boat name: Mwaozi Tumbe
Make: Presteige
Length: 4m +
Engine: Yamaha 90HP
Join Date: Oct 2013
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Quote:
Originally Posted by indaba1991 View Post
Engine bits


Owners Manuals | Yamaha Outboards

If you go on the Yamaha Outboards website there is also a good number of support pages on early models plus free manuals. I also found good help on the Q&A section.

Good luck on the restoration! Great place Kenya - but watch out for the crocs!!
I have no idea what year this thing is - the serial number plaque has these numbers:
90A6T0 /
6HI / L / 479185

Any clues?
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Old 01 November 2013, 07:44   #15
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Town: Wirral & Caernarfon
Boat name: That's Enuff
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Length: 7m +
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looks like you are going to be busy for a while

as someone else has said, looks like 1st place to start looking for your air leaks is around the valves, lots of horrible old glue round there

guess the pic is showing damage to the floor, can't really tell what it's made of, will take a bit of sorting out, looks like something heavy been dropped on it from a fair height

can you put a 12v supply onto the motor to see if the power trim / tilt moves either way, should give you an idea what the problem is

let's know how you get on
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Old 01 November 2013, 07:48   #16
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looks like you are going to be busy for a while

as someone else has said, looks like 1st place to start looking for your air leaks is around the valves, lots of horrible old glue round there

guess the pic is showing damage to the floor, can't really tell what it's made of, will take a bit of sorting out, looks like something heavy been dropped on it from a fair height

can you put a 12v supply onto the motor to see if the power trim / tilt moves either way, should give you an idea what the problem is

let's know how you get on
Floors double layered fibreglass from looking at it.

Going to need to find some to walk me round the engine no idea what goes where... I know its water cooled but no idea where the waters meant to enter or exit
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Old 01 November 2013, 07:56   #17
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post some good pics of the damage to the floor, someone will give you an idea where to start with that job

same goes for the engine, post some pics showing the complete outboard then we can see what's there or missing. I could be wrong, won't be the 1st time, but engine details are usually on a plate on the trim / tilt engine bracket, the bit that bolts to the transom and the engine itself mounts to, but the pics will help
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Old 01 November 2013, 08:39   #18
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Country: Finland
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Boat name: Helena II / Avon
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Engine: Yamaha F25 & 90/2S
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Quote:
Originally Posted by Huffie View Post
I have no idea what year this thing is - the serial number plaque has these numbers:
90A6T0 /
6HI / L / 479185

Any clues?
Try this:

and for the RIB:
althoug your boat is propably made in South Afrika where they sold their rights to ?
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Old 01 November 2013, 10:21   #19
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how well does your postal system work? is it possible for you to buy all the bits needed online? if so then there is no reason why you cant get this boat to a good workable spec.
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Old 01 November 2013, 14:11   #20
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how well does your postal system work? is it possible for you to buy all the bits needed online? if so then there is no reason why you cant get this boat to a good workable spec.
Well I'm not really sure what I need. I can use ebay in the UK then get a courier to send it over. But need to buy it all in one package to make it worth while. Anyone want to compile a shopping list for me?!

Also I pumped up the tubes today and found that most of the valves are leaking loads and that there is a decent leak in the front right, I covered it with some tape and it stayed pumped for 2 hours or so.

Even now - 4 hours later - its still got 80% of its air, the front maybe 50%. Quite happy with that as i thought it would be like swiss cheese.

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