Hi everyone...I have the fast idle problem on the '76 Honda 750 K6...it was recently revived after sitting still for five years...as I wait for my carb sync tool to arrive via mail was wondering...should those stupid little plastic caps that sit atop each float valve really be there or did someone just leave them there and they are like packaging crap...I put them back on after my carb rebuild but I'm wondering if the not helping...specifically, they are about a 3/8" long, skinny and fit on top of the float valve in which the little slide fits...the slide is in the metal channel of the float valve but these little plastic pieces sit on top of the hole on float valve set...I wonder if they are restricting air flow and no letting the float valve slides to do their job...thoughts?...I don't see them in the clymer manual...thanks.