brokenwrist
Seaman
- Joined
- Feb 17, 2016
- Messages
- 73
My 79 70 horse outboard refuses to start unless, I put a small amount of fuel down the carbs. I go through the usual starting procedure every time, squeeze the primer bulb until it get firm, advance throttle control forward to fast idle, turn key-push to activate choke, and then attempt to start. No activity, like I said unless gas is poured down the carbs. Then it'll fire right up, and continue to run great on it's own, even pumping gas out of the tank. I've rebuilt the fuel pump in full, new diaphragm, gasket, all 3 check valves replaced, new inlet screen and seal. I've verified fuel is making it out of the pump and to the carbs. Once running the old girl runs like a top. Timing is set dead on. I'm leaning towards a fouled needle or jet, am I correct in leaning this direction? I should also add when I bought my boat a couple years ago, the engine didn't have the intake plenum, but it never affected it before.