motor swap

[twistedcustomz]

i recently swapped motors out of my 2001 busa and put an 06 motor in and now when i turn it over it backfires. if anyone can help i would greatly appreciate it. someone had said something about a cam position sensor being switched out too. Is this true?

 

[johnstein]

I think you might need a 2002 -2007 ecu ?

 

[Shean]

yeah thats about right the ecu's in the the 01 and 06 are diffrent.

 

[Rick D]

Thats right about the 2002-2007 but if you still have the 2001 engine you could swap some of the main sensors like the cam and crank sensors to match your ECM.

 

[turbobusa2000]

The thing that is throwing you off is the rotor/flywheel on your new motor. If you want to keep the 99-01 ecu/ecm that your bike has you'll have to to put the rotor from the 99-01 motors on the crank. If you'd like to keep the rotor from the 02-07 motor then you'll have to get the ecu off of a 02-07 bike.

Additionally, if you have already made this change, you may be having problems with the crank pickup polarity. They changed that as well on the newer version bikes.

 

[GIXERHP]

The thing that is throwing you off is the rotor/flywheel on your new motor. If you want to keep the 99-01 ecu/ecm that your bike has you'll have to to put the rotor from the 99-01 motors on the crank. If you'd like to keep the rotor from the 02-07 motor then you'll have to get the ecu off of a 02-07 bike.

Additionally, if you have already made this change, you may be having problems with the crank pickup polarity. They changed that as well on the newer version bikes.

Correct!