But if everything is stock, such as the pipes, very little adjustment is nesesary. Idle mixture should be 1 turn out. Slide needles can probably be left alone. Beyond that you shouldnt be at risk of melt down unless the jets have been changed or are varnished causing lean mixture. It took me some playing around to get my 600 synced but its real aparent if its not. Mine fluttered badly when idleing around at slow speed but wound up nice at full throttle before i got it right. You'll know when you've got it. The triples sing nicely when in sync.