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wont crank, in this order: check fuse, brake switch ( adjustment and operation ) and then ignition switch
wont start but does crank: check for spark, yes then check fuel shut off solenoid. no, disconnect kill wire to coil and check again, still no, coil is issue, if yes after disconnecting kill wire suspect a safety switch
For a small gas engine than won't start, think FAST -- Fuel, Air, Spark, Timing. You've replaced the filters and spark plugs and squirted in some starter fluid, eliminating the simple common fuel, air, and spark problems -- but I because of the backfiring I think your problem is in the timing -- like a sticking valve. Probably more than you want to tackle at home, but might not be as expensive as an engine replacement. Take it to a good small engine mechanic -- best bet is a lawn equipment shop that has been around many years. Drive a little farther to get to one if necessary.
Does it crank but not turn over or it wont do anything? If it wont do anything check under the seat if the seat switch isn't making contact it wont start. Thats a saftey feature.
This is not always the case but on Briggs and Stratton it may be time to check the valves for adjusting. Take off the cover and check for a gap of .005 . If the exaust valve is loose it will not allow the engine to relieve combustion to start. In other words the engine stays under load of compression and can't turn. In my shop I see this all the time . If all electrical checks out try this next
Back firing indicates that the engine has jumped time
please check this
how do I check
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