[Bob Carriere]

That's the Holy trinity..... all 3 are needed to make the engine run....

Wild guess the ignition coil may be bad ....as it gets hot it may shut down.
.... do not overlook the cheap little condenser inside the distributor.

When it stalls and you crank it can you smell gas fumes by the carburator????

To quickly check if you haver a sparks problem....after it has stalled..... open the hood, remove the air filter and spray ( using a plastic spray bottle) fresh gas or dribble a little gas ...one or two ounces... in the carb while someone else is cranking the engine...... if nothing happens and the engine does not try to start then you probably have no spark....... if it coughs and sputters you may have a fuel starvation problem......

You could have a fuel starvation problem with...... dirt....swelled rubber lines (swelling is inside the de-laminated rubber tube and may not be visible) allows it to run on what is in the carb bowl but the system is not pushing enough fuel to keep it running.



Start with the coil and condenser........ that is were I would put the money!!

Can you describe what happens when it quits....... gradual sputtering then dies or just plain shuts down......

As a precaution if it has been sitting since last season........fresh gasoline will help.

Good luck and keep us informed of what you find.

Bob C