Re: 40hp Johnson 1963 Carb Question

[twsnagel]

Hi everyone:
Thanks for all your suggestions! I feel that the idle needle is properly installed now. But the engine still won’t start properly.

I’ve tried a number of things since I last updated. I initially thought my ignition/throttle sync was off – it was, but it didn’t help the problem.

The engine seems like it is WAY too rich.

I can’t start it except on ZERO choke, and when I crank it, gas pours out the carb throat during cranking.

In keeping with the stuck float idea, I connected up the gas tank. With the bottom screw plug out of the carb, I am able to use the primer bulb to pump substantial amounts of gas out the bottom of the carb. When I put the plug back in, I can’t pump any gas out of the jets in the carb throat. This tells me that the carb float is NOT stuck. Right?

I guess I’m going to have to take the carb off again. I suspect the idle air intake might be blocked? It’s the small passage at about 2:00 at the edge of the air intake, right?

Fleetwin – you mentioned taking the core plug off the idle needle area. Scares me a bit – How do yo do that properly? I do have a replacement plug from my carb kit but I’ve never done that.

One last question – the old float needle was different than the new one in the kit, but the float was the same. The new needle did not have the rubber tip, and it had a notch around the "float end" to take a retaining clip. I didn’t see how the retaining clip worked with the float and omitted it since the last needle did NOT have a notch, (and by extension, no retaining clip). Big mistake?

Thanks all,
-Tyler