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Old 07 July 2006, 15:45   #1
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Country: Canada
Town: Belleville
Boat name: Zodiac FR340
Make: Zodiac
Length: 3m +
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Yamaha 9.9 conversion to 15

Hi all, I have a 2005 Yamaha 9.9 that has been modified or so I'm told to 15HP(2 stroke). How can I tell without taking it apart if that is the case. I have it on a Zodiac FR340 and it moves quite nice with 3 adults and two kids at about 30km/h and about 3/4 throttle. Would a 9.9 alone be able to do that or that's the 15 horses that push along?

Thank you,

Nick
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Old 07 July 2006, 16:33   #2
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Country: UK - England
Town: Reading, Hants
Boat name: Juicy
Make: Sealine F43
Length: 10m +
Engine: 2 x 370hp
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check on this thread as i did this to mine a couple of years ago and posted all the pics that show what to look for


converting a 9.9 yam to a 15

throttle stop is one item and you could undo the carb from the reed block and post a pic and i can tell you if it is a 15hp reed block
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Old 18 May 2015, 17:37   #3
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Country: UK - England
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Engine: tohatsu 25hp
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Hi Hugh, can you send me the link to your thread of converting the 9.9 to 15.

Looking at doing this to a motor I may get hold of.

Regards
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