I have a 2013 Suzuki DF4 and wanted to try to convert it to a DF6.
Read a heap of stuff on different forums
, but couldn't come up with anything definitive that someone else had tried and succeeded ....
So, I tried and ............... it worked a treat !!!
First off went through the parts manuals
to see what is different, and the answer is "not much"
Other than the external fuel tank
attachment, the only parts
that I could find that are different are ....
Carburetor (DF6 has a noticeably bigger through diameter)
Intake Manifold (only difference is the mounting section for the throttle cables)
Thermostat (42c instead of 50c)
So I ordered those parts which including shipping
came to about US$150.
Installing them was pretty straight forward.
The DF4 is only designed to run to 5000 rpm
whereas the DF6 goes to 5750 rpm
and that's where the extra (hp) power comes from.
On this version (2013) there is an overspeed protection for both models at 6000 rpm but in later versions the different models have individual overspeed limits with the DF4 being lower (off memory around 5200 rpm). I tried to see what part it is that changes the limit, but couldn't work
it out, so if your planning to try this with those later versions, not sure if it will work
without solving that.
Anyhow, the result is that the engine
revs noticeably higher and my 2.6m inflatable
with soft bottom goes WAY FASTER ! Now easily planes 2 up at 3/4 throttle whereas before it would not plane 2 up at all.
You would also want to order a new manifold to cylinder head gasket
and carburetor to manifold gasket
as both were stuck hard to the old manifold.
Hope this helps someone ... cheers