600 Modifications This section is specifically for questions and advice pertaining to mods of the older 600 models.

CBR600F3 to F4 motor swap?

Old 09-12-2013, 08:57 PM
Thread Starter
Join Date: Aug 2012
Location: Oklahoma
Posts: 45
Default CBR600F3 to F4 motor swap?

I have a '95 CBR600F3 with, apparently, an F2 motor on it, and it seems that it has reached the end of it's days. The gaskets need replacing (oil leaks and sprays out at high RPM's), and I figured, instead of spending near $1,000 to replace them, to why not just get a different motor, and possibly even a newer motor. I've found some F3 motors, but they have a lot of miles and I'm not too enthused about that, so I found some F4 motors that have 18,000ish, and was wondering if it will fit? I'd love to put maybe an '03 or newer on it, but I'm not sure about that either. Anyone know what year CBR motors are compatible with the F3 frame and fairings?
Old 09-17-2013, 04:40 PM
jalen11598's Avatar
Senior Member
Join Date: Jul 2006
Location: Lancaster, Tx
Posts: 195

The only Motors that you can put in our bikes are F2 and F3's, unless you want to do some serious modifications which will cost you an arm and a leg. Our bikes have carbs and the newer bikes are all fuel injected. Since our bikes are almost 20 years old, just about any motor you find will have some high mileage. In my opinion I would get another F3 motor and have it looked over thoroughly
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