Quote:
Originally Posted by Dead Parrot
For fuel flow, check the rubber lines from the tank sender unit to the metal frame line(s) or selector valve(if dual tank). Also from selector valve to metal frame. If they are original(out of sight, out of mind), they are likely rotted to the point of letting air in and breaking the fuel pump's suction.
Your symptoms match my 75's when the valve to frame line hose started crumbling away a couple years ago.
When you prime the carb, you don't need very much gas. Think tablespoon instead of cups. If you are using cups of gas, could very well be creating a flooded condition.
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x2 and I don't think there is a right or wrong way the rod goes into the engine to drive the pump, never heard of that...and too much grease wouldn't cause the pump not to work,it drives off the cam