ive always had one on my other boats,but this new toy i bought does not and the previous owner said some junk about it not being a big deal on the older carbed yammys,dunno,he always put ring free in it and ive used sea foam or that since ive had it .But like other threads ya think it would be worth the coin for the just in case being gas is getting crappier around the lakes here.And if so wheres the spot to purchase one with mounting kit and all since i have nada for that oh a prt number or size would be nice too,,![]()