29-12-12, 11:58 AM
Every FZS600 that I have owned (a lot) has had a clunky box. Heavy duty clutch springs help a lot as does regular oil changes with quality oil. So long as it doesnt engage 2nd and then jump it's perfectly normal.... If it does engage and then jumps it points to a selector drum/fork issue.
Owner of Motorcycle Republic, Specialist in unfucking things that others have fucked up.