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Old 28 November 2019, 11:37   #1
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Country: UK - Scotland
Town: Ayrshire
Boat name: Gaffer, Ocean Devil
Make: Avon Deluxe,Scorpion
Length: 5m +
Engine: Yamaha 90, 6LP
Join Date: Nov 2019
Posts: 26
Yamaha 90A long shaft lower leg unit

I need a replacement gearbox for my long shaft Yam 90. I’m told that to rebuild mine which has stripped gears is a big job so would be better to buy a good used replacement. Any help very much appreciated.
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Old 30 November 2019, 10:58   #2
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Country: UK - Scotland
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I have a gearbox, latest case with the smaller water inlets but the cavitation plate is broken. Kept for a spare when we were using 2 strokes so I would think it will have good internals.
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Old 30 November 2019, 20:08   #3
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Country: UK - Scotland
Town: Ayrshire
Boat name: Gaffer, Ocean Devil
Make: Avon Deluxe,Scorpion
Length: 5m +
Engine: Yamaha 90, 6LP
Join Date: Nov 2019
Posts: 26
Hi Dave my engine is 2008 so I think that’s the correct one. Have you any pictures? Could the cavatation plate be mended? I see your in Scotland where abouts? Best Jamie
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Old 30 November 2019, 20:40   #4
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Quote:
Originally Posted by Bizzarrini View Post
Hi Dave my engine is 2008 so I think that’s the correct one. Have you any pictures? Could the cavatation plate be mended? I see your in Scotland where abouts? Best Jamie
Who stripped yours? I may have the all the bits to repair your own one.
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Old 01 December 2019, 10:54   #5
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Country: UK - Scotland
Town: Ayrshire
Boat name: Gaffer, Ocean Devil
Make: Avon Deluxe,Scorpion
Length: 5m +
Engine: Yamaha 90, 6LP
Join Date: Nov 2019
Posts: 26
Don’t think it’s been stripped. Clyde Outboard services have told me just to get a full replacement lower unit. This did strike me as surprising but being new to RIBs I don’t know. I would much prefer to get my gearbox fixed than buy a full replacement. Can this be done? If so who would do it for me?
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