I live in Oroville, WA just across the border and have an 02' Euro 748R. This is my third 748R and it is great. just went for a ride to Winthrop on it yesterday. There is a lot different about teh 748R motor so maybe it is the length of the rods, pistons or head length. I have a manual for the bike so if you are down this way and want to take a look, you will be welcome.
Good luck with the project.