Posted by pete 23 on July 18, 2019 at 20:36:38 from (50.33.19.13):
In Reply to: Admitting defeat posted by Bkpigs on July 18, 2019 at 16:37:51:
Question, can you screw in the main jet adjusting screw and kill the engine when it is running up to fair speed. If so, forget about main jet because you can lean it out with screw to restrict flow enough to run decent even if jet is over sized.
Now, on the other hand, if the main jet fell out as it is only lightly pressed in , or got blown out on cleaning, you would not be able to adjust because needle would not reach in far enough. Just make sure you can kill engine by screwing in that main jet. Some times too much packing will not allow you to screw in far enough to adjust and or kill engine.
I have seen the metering nozzle unscrew and cause problem you are having but you certainly would have corrected that, or idle jet missing. And, if it isn't running over with gas on , engine shut off, it is not float or needle and seat.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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