Join Date: Dec 2007
Location: lakes region, NH, usa
I agree with Punch, I have worked with these ecu's for years and the 5am Hw610 has proven to be more robust and easier to find than 5.9 ecu's . With the 1.5m it is sufficient to run the bike well but the 5.9 and 5am simply made it MORE tuneable. Given the trouble (fun) to convert I would not take the 1/2 step and go straight to the 5am HW610. Do keep an eye out for sensors buried into instrument clusters unless you plan on changing these as well.
There are certainly pluses to injection so I do understand I would just miss the audible treats the injection does not have.