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Suddenly not wanting to start

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Old Feb 10, 2021 | 11:31 AM
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Default Suddenly not wanting to start
77 shovel ran well last week. Went to start it yesterday and it cranked right up however I couldn't keep it running long enough for it to get warmed up. It didn't want to stay running even with the enricher open and giving the throttle a few twists as it started to die. Now I can not get it to start up at all. Tanks have gas, petcock is open, switch is in run position. Engine cranks strong as I have a brand new battery. Plugs are brand new and gapped correctly. I checked for spark and get a strong spark. I can spray starting fluid into the carb and it will fire up for about 1 second and die right away. Only thing I can think of is to give the carb a good cleaning. Maybe it sucked something up? Anything else I should try? Odd that it ran so well last week. Thanks!
 
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Old Feb 10, 2021 | 12:13 PM
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did you wash the bike ? could be water in the carb...undo the drain plug on the bowl and see what you have in there
 
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Old Feb 10, 2021 | 12:21 PM
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No, have not washed anything on it. I did take the bowl off and check the jets. I did not see anything obstructing them but did see some sediment in the bottom of the bowl.
 
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Old Feb 10, 2021 | 01:39 PM
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Does it keep running if you keep giving it burst of starting fluid? What kind of petcock, vacumn or standard? Have you pulled the fuel line off the carb to ensure you have flow?
 
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Old Feb 10, 2021 | 02:13 PM
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blocked pilot jet ?
 
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Old Feb 10, 2021 | 02:21 PM
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Originally Posted by chopper_man
Does it keep running if you keep giving it burst of starting fluid? What kind of petcock, vacumn or standard? Have you pulled the fuel line off the carb to ensure you have flow?
No it doesnt seem to want to continue to run with more starting fluid oddly. It's almost as though as soon as the butterfly closes, it dies. Like it's completely suffocating. It is a standard peacock as far as I know. I did pull the fuel line and there was fuel flowing.
 
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Old Feb 10, 2021 | 02:49 PM
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Take a look down the carb throat while cranking and twist the throttle to see if the accelerator pump shoots some fuel in. Careful, if it backfires you might singe your eyebrows.
 
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Old Feb 10, 2021 | 03:13 PM
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The intake manifold is the first place to go looking when that happens - pull it all off re seal and re install and then see what happens
 
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Old Feb 10, 2021 | 05:57 PM
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Originally Posted by Baird
Take a look down the carb throat while cranking and twist the throttle to see if the accelerator pump shoots some fuel in. Careful, if it backfires you might singe your eyebrows.
yes I did notice that fuel was shooting into the carb from the accelerator pump. Eyebrows are still in tact.
 
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Old Feb 10, 2021 | 09:21 PM
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Usually takes longer then a week for this but any chance your exhaust is plugged. Like mice filling it with dog food or something
 
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