when i had my 2fiddy, i somehow or other managed to come across the most amazing find, repairer wise...
some guy who was a factory tech for about 20 years, now just races and fixes jap bikes..all his manuals are japanese, and his prices are unbelieveable...in a good way
His name's Yuki at Southern Cross Motorsports, in Heidelberg
Theres noone else i would recommend other than this guy, its his shop, he does the work....nuff said
He KNOWS his stuff
Im sure you can find the # in your local directory