Hello there, I am a new here and trying to fix burgman 650. Well the crankshaft is frozen so I got another engine . the numbers are same: old engine P506 (104929) new engine P506 (170494). The problem is that after removing the cvt transmision from the frozen engine the input shaft is way smaller than the hole on the new engine, the output side is OK , am I missing something? I got the Burgman as nonrunner and cant find any info about the cvt. Thank you for help.