Quote Originally Posted by geezer101 View Post
The updated fuel pumps have 2 outlet barbs - one goes to the main inlet to the fuel bowl on the Mikuni (primary) and the second goes to the accelerator enrichment pump that then passes back out to the return fuel line. The early ones had line in and one out - they were rebuildable and required a recirculation cannister to split fuel delivery. There is also the vapour return line as SubG has stated - this line can NOT be blocked off. Capping this line off will cause vapour lock and the condition magnifies in hot weather conditions (enough to starve the engine out of fuel - releasing the fuel cap relieves the pressure build up) I can't guarantee that hooking up the secondary fuel line to the tank return will relieve fuel pressure but give it a try. The other option is find a fuel filter with 2 outlets and connect the return to it. I found the fuel filters and left a link a while back but I have no idea where...
Geezer101, reattached the return line to my 2nd output Barb and Ta-Da!
Presto no flood-O! At least it appears to have removed the pedal down, black smoke routine for now. I feel foolish not learning this years ago but hadn't asked the question to the right people. Thanks everybody for the knowledge. It's greatly appreciated.