Comps good, sparks test good at 1/2 inch, timing good, sync good, lower unit good, carbs clean, bores good, reeds replaced, all cylinders run on idle and respond to carb adjustment. Revs right up off load.
Back it into the pond set idle at 800 in forward gear. Dies after about 1 min. Will not rev beyond 2500 in gear. Sqeezing bulb makes no difference and remains mostly full. Can refire with throttle opened but reluctant to fire without throttle.
Need help bad.