Primer bulb collapses after cruising for awhile. will not reach high speed for only a few seconds before stalling. is the check valve in the bulb getting clogged stopping fuel flow?
The ball valves in these hoses can go bad. If the bulb is older, make sure the arrow on the side is pointed in a generally upward orientation. If it is going downhill, such as in the splashwell, the ball valves can stick shut causing the problem you note. Newer bulbs are not as prone to this orientation problem. Also possible the anti-siphon valve on the tank has some debris in it. That can cause the ball to function slugishly and restrict fuel flow.
The ball valves in these hoses can go bad. If the bulb is older, make sure the arrow on the side is pointed in a generally upward orientation. If it is going downhill, such as in the splashwell, the ball valves can stick shut causing the problem you note. Newer bulbs are not as prone to this orientation problem. Also possible the anti-siphon valve on the tank has some debris in it. That can cause the ball to function slugishly and restrict fuel flow.
