180er on 225er conversion…

Hello, always listen to engine damage here in the forum engine damage because if this should be the case with me (you make your thoughts … I will change immediately (if it should be a new machine) to the 225er, but I have read that this should not be so easy with the engine change at all because different wirings do not fit – is that true ? If so which ? And if so how did you solve this (has certainly already done one)? Actually it would be possible a just look from cylinder head to change everything or ? Must wire harness be changed (control unit ?) For information I would be grateful to you ! Greeting Markus