Posted by docmirror on February 05, 2019 at 17:52:13 from (107.213.165.255):
In Reply to: snowblower carb posted by gotmyfarm! on February 05, 2019 at 12:01:02:
OK, there are two closure 'plates' that interrupt the airflow from outside to inside. Working from the air cleaner, the first plate is the choke plate. This is either operated manually by a lever on the snowblower, or more likely by that little bent rod at the top back of the carb housing.
The choke makes the fuel air mixture richer to start the engine when it is cold. It must be fully open in the normal position, and you must be able to close it fully by pressing or moving the choke lever.
The throttle plate is the one that runs the speed of the engine. It must be able to close, and fully open by operation of the speed control lever. Nevermind the governor for now.
More important, by your description, it appears you have the throttle hooked up right now. Again, when the lever is in the 'stop' position, the throttle plate(inside one) should close fully. When the elver is in the 'full' position it should open fully or almost fully, depending on design.
Moving forward. Take the spark plug out, lay it on the metal of the head, attach the hi tension lead to it, put the throttle in the middle, make sure all the blower safety locks are made, and pull the handle. Look for a good blue/silver spark.
If you do not have a good spark stop now, and get a new plug, and gap it correctly. If you do have good spark, put the plug back in, attach the hi tension lead to it.
With the choke open, and the throttle about half open, use your carb cleaner and give a quick spritz from the little red tube right into the back of the carb air intake. Try to start, and see if it runs, and then just dies quickly. This will indicate you are getting spark, but no fuel through the carb.
Let us know what happens with some spritz from the carb cleaner.
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