I'm helping a friend swap out is blown motor from hiw 04 gsxr600 and putting in an 05 gsxr750 motor. This is one of those "direct swaps" you read about on the innerweb
Everything is pretty much done, when you turn the bike on it goes through all the "checks", the LCD screen doesn't spit out any errors or nuttin... When we try to start it the motor turns over but does not fire then eventually spits out the "FI" code on the LCD screen. There is a PCIII in the mix and for some reason my laptop does says it is not communicating with the PCIII but picks up the S/N of the unit and registers throttle position. It also picks up "something" when we tried starting it with it conencted but then returns to "not communicating"
It was getting late so other then a quick check of the connections we really didnt get into further..
possible problems:
-bad wiring connection - ground or a bad "clip" connection
-bad ECU - he bought this on ebay, 750 ECU needed for swap
-bad tip over or kickstand sensor - will the motor turn over if these are bad?
any tips from the "pros" would be greatly appriciated before we start troubleshooting.....thanks