ive read thru the manual but dont remember seeing it in here(does not mean i missed it tho) but as far as maintaining the fi system for winter and such. this wont apply this year for me but i just wana prepare for next year. ive always drained my fuel tanks in the past for winter, is this still ok with the fi system? and as far as the throttle body nd injectors, should i be cleaning them ever? with carb cleaner or somethin else.