E70TLCUR Air Bleeds

[larrym]

After rebuilding my brothers carbs on this 1987 motor, it would run high speed OK, but not idle long before dying. He found crud in the fuel pump, so I pulled them and went through them again, same problem.

While he's restoring the boat, I have the carbs again, looking at the parts store for this motor, I see the idle air bleeds and high speed orifices are not what's in the carbs now. Currently they have #28 idle air bleeds and the high speed orifices I can't read, too corroded. The parts store calls for #33 and #64D. Would this cause the issues he's experiencing?

This motor hadn't run for several years before now, it's NOT oil injected, so a two stroke.

Question is, could someone have put these carbs on from a different motor? Are the bleeds and orifices I need the ones shown in the parts store, and are all three carbs jetted the same?

Thanks, Larry

[boats.net]

Yes, incorrect jetting can cause idle issues. Change the jets, be sure all air/fuel p***ages are thoroughly cleaned prior to re***embly.