Originally Posted by codprawn
The extra power is useful and as the engines weigh exactly the same it would be silly not to go for the 15hp unless there is a big difference in price. I remember reading something on this site that it is quite easy to upgrade the 9 to a 15hp as they are the same engine but can't find the thread at the moment.
That would be me
Post 2005, the only difference between DF9.9 and DF15 seems to be the carb. I may however have missed something, so if you do fit a DF15 carb and your engine shuffles off its mortal coil in an expensive manner, don't blame me
Pre 2005, there is a whole lot of other stuff including different camshaft
I couldn't work out how just changing the carb could make a difference, then I saw the carbs...
Price for the carb is £207.34 ex vat and delivery from these guys:
plus you need 2 new gaskets
I got a very good price for my DF9.9 (several years ago) from
If I hadn't got such a good price it would probably have been cheaper to buy a DF15.
One thing to be aware of - Suzuki have come up with a new DF9.9 - this new engine cannot
be upped to 15HP as it is a smaller capacity and shares internals with a new DF8.