Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > generator engine wouldn't start
Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions |
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jtclays
Joined: Aug 7, 2011
Points: 16
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Re: generator engine wouldn't start
Reply #6 Nov 15, 2013 11:49 am |
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Bob, Off chance you have a low oil shut down circuit???? Only other thing I have JD gen with a 10hp Briggs and I have a switch on the pull start housing and on the main panel that both need to be in the on position (red part of the toggle switch showing). I've pulled many a times to pure sweated out shirt before realizing the engine switch was off Just guessing.
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mml4
Snow is good, Deep snow is better!
Joined: Dec 31, 2003
Points: 544
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Re: generator engine wouldn't start
Reply #7 Nov 22, 2013 11:24 am |
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Sheared flywheel key would be my guess. Marc
SnapperV210P,Toro22177,TroyBilt42010Snowthrower,Craftsman Shredder,American Turbo Pressure Washer HondaGX200,Stihl011Saw,EchoPas260Trimmer Edger,EchoPB602Blower,EchoHCR150Hedge Clipper
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friiy
Location: Las Vegas, The Desert
Joined: Apr 12, 2008
Points: 600
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Re: generator engine wouldn't start
Reply #9 Dec 28, 2013 11:53 pm |
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I have never seen a timing issue on a generator, you can't electriclly dump load on them quick enough to shear a key. If the flywheel has come loose, it may shear a key. Don't laugh, but i think it is the plug. ( if i had to guess) .. You may see spark now, but as pressure increases in the engine the resistance of the air fuel mix becomes greater,the plug may be fouledto a point that the resistance throught carbon on the insulator is less than the resistance throught gap. Thus not firing under compression load.. When we check aircraft spark plugs and clean them, they are we tested in a controlled pressure /windowed box for such a reason. Try swaping out the plug and let us know. Good luck, Friiy
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borat
Joined: Nov 10, 2007
Points: 2692
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Re: generator engine wouldn't start
Reply #10 Dec 29, 2013 9:11 am |
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I have never seen a timing issue on a generator, you can't electriclly dump load on them quick enough to shear a key. If the flywheel has come loose, it may shear a key. Don't laugh, but i think it is the plug. ( if i had to guess) .. You may see spark now, but as pressure increases in the engine the resistance of the air fuel mix becomes greater,the plug may be fouledto a point that the resistance throught carbon on the insulator is less than the resistance throught gap. Thus not firing under compression load.. When we check aircraft spark plugs and clean them, they are we tested in a controlled pressure /windowed box for such a reason. Try swaping out the plug and let us know. Good luck, Friiy In all of my years and experience with numerous small engines, I've only had two spark plugs fail. Both sparked outside the cylinder but would not fire when installed. A new plug was the fix. If the OP is putting fuel directly into the cylinder via the spark plug hole, the engine should fire if there's spark. If it fires and runs for a bit, the electrics are good. If it doesn't fire, something is amiss in the ignition system. I'd start with a new plug, then check the plug socket/lead and work backward into the coil/points/cdi, etc. The low oil switch has confounded many a novice. If the engine has one, ensure the oil level is up. If oil level is good, disconnect the switch and try to fire the engine.
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