Upgrade df 9.9 to df 15

[rick df]

Hello,

I want to upgrade my suzuki df 9.9 to df 15, heard the only difference is the carbutattor.
I did call a couple of suzukidealers, the price they want for upgrading is 400 euro's.
Do someone know's wich exactly parts are different between the 9.9 and the 15.
And maybe how i can upgrade it for not to much money?

I appreciate all the reactions!!!

Greets Rick

[boats.net]

I have heard of this convertion but have not experienced it myself. Looks like, according to the parts list, that the only major differences is the carburetor and the camshaft.