19-01-2018, 01:59 PM
It is a feature of several of my 7s that, from cold and with the choke knob fully out, they will start very smartly, run cleanly for perhaps 5 seconds, and then die away and stop. Operating the throttle makes it die immediately. Wait a couple of seconds, start up again, same thing. This will happen three or four times and then, at last, they will continue to run happily and everything is normal. Other 7s with the same setup will start and run immediately.
I always manually pump fuel up to fill the float bowl prior to starting - which is what it initially runs on of course. All use 26VA Zenith carb.
Any clues as to why this happens? Is it a fuel pump issue?
I always manually pump fuel up to fill the float bowl prior to starting - which is what it initially runs on of course. All use 26VA Zenith carb.
Any clues as to why this happens? Is it a fuel pump issue?