putting a factory pipe and bn44 card on my 440 i am thinking about doing a flat deck and cutting about 2in off the back so the pump sticks out some more. i want a really wide platform cuz the stock tray is just to small is it more of a pain then i am thinking it will be? any other mod suggestions?
300/440/550 good idea?
- Thread starter kaw440
- Start date
screaming440
The Old Skool Professor
- Location
- KC/Lake of The Ozarks
i don't know about the hull mods but you should port the motor to get the full effect of the bigger carb and pipe.
it is the porting that really wakes up these skis.
it is the porting that really wakes up these skis.
screaming440
The Old Skool Professor
- Location
- KC/Lake of The Ozarks
how huch what?
screaming440
The Old Skool Professor
- Location
- KC/Lake of The Ozarks
i am guessing you are talking about porting.?
it is not a lot of work if you know what your doing.
it takes about 5 hours for me to do one but you can do a mild clean up in a few hours.
if you are going to do this yourself do some reading first. the "two stroke tuners handbook" is a good start.
here are the basics you want to raise the exaust ports, lower the intake, widen both, point the intakes to the carb, smoothout the intake tit, smooth out the bottoms of the transfers, and chanfer all the ports at the cylinder wall.
i think that is eveything.
big ports on these motors are going to be about 4 to 5mm larger than stock.
a ported motor with you basic mods (pipe, water box, air cleaner, prop, and 44) will run like a totly different ski and pick up 10 to 15 mph over stock.
also if you take the motor apart put new crank seals in it cuz you will never get it to run right if it is not sealing.
it is not a lot of work if you know what your doing.
it takes about 5 hours for me to do one but you can do a mild clean up in a few hours.
if you are going to do this yourself do some reading first. the "two stroke tuners handbook" is a good start.
here are the basics you want to raise the exaust ports, lower the intake, widen both, point the intakes to the carb, smoothout the intake tit, smooth out the bottoms of the transfers, and chanfer all the ports at the cylinder wall.
i think that is eveything.
big ports on these motors are going to be about 4 to 5mm larger than stock.
a ported motor with you basic mods (pipe, water box, air cleaner, prop, and 44) will run like a totly different ski and pick up 10 to 15 mph over stock.
also if you take the motor apart put new crank seals in it cuz you will never get it to run right if it is not sealing.