Franco Morini KickButt Engines You can phone them for more info. I have tuned pipipe and muffler specifically made for the Morini. Very good quality.
Ez's vids with the 5.4 or 6.4 (not sure) show crazy speeds even uphill and I think he said he changed to an even larger sprocket.
http://motorbicycling.com/attachment.php?attachmentid=12105&stc=1&d=1251005307 `As you can see, the muffler, pipe and motor fit like a glove, the motor is currently mounted on my 29er bike frame. Since I now have this uploading of pics finally figured out, I'll post more pics on the build thread I started. Thanks for the help.
What did the pipe cost you, I'll need to probably order for the 3.2 once I'm moved and have the cash. Does the silencer work well, mine with the sbp pipe is crazy loud
3.2hp engines is more than enough for a normal bike for anyone looking for a morini to replace a china engine. (s6e)