Yamaha 9.9 conversion to 15

petren · 07 July 2006, 19:45

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

Hugh Jardon · 07 July 2006, 20:33

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

http://www.rib.net/forum/showthread....hlight=yam+9.9

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

Commando C2 · 18 May 2015, 21:37

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