After many years on the water with diesels I downsized to a b27 and am coming up to speed on my 80's vintage Yamaha F9.9 four stroke outboard. Question is about the primer bulb. This spring the engine started and ran fine after the layup but the primer bulb disintegrated in my hand. Ethanol I guess or maybe they just do that after a few years.
I bought a new bulb and connected it to my plastic 6 gallon tank. The bulb pumps up firm but goes back to soft. The engine idles but stalls when turning up the throttle. There is no evidence of gas or gas smell so there doesn't seem to be a leak above the bulb.
Should the bulb stay hard? Is the new bulb defective? Does this mean an air leak in the fuel line below the bulb?
I bought a new bulb and connected it to my plastic 6 gallon tank. The bulb pumps up firm but goes back to soft. The engine idles but stalls when turning up the throttle. There is no evidence of gas or gas smell so there doesn't seem to be a leak above the bulb.
Should the bulb stay hard? Is the new bulb defective? Does this mean an air leak in the fuel line below the bulb?