Question about Craftsman 20 hp 42 in. Deck Yard Tractor
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Posted on Jan 02, 2017
That throttle cable issue sounds like it may be the culprit. the cable housing (the outer casing for the wire throttle cable) may not be anchored correctly. Which may be allowing you to move the throttle without any change at the butterfly control on the carb. make sure the cable housing is anchored at both ends.. by the throttle control and at the carb area.. That may be your problem... hope it is that simple...
Posted on Jul 23, 2009
ran into this problem twice this season, about drove me crazy - finally traced the problem to the anti-backfire solenoid [the little cylinder at the bottom of the carburetor that holds the float bowl on] - after running fine for 20 minutes or so [it varied], the coil would release the plunger and shut off the gas flow. as soon as you turned off the key and turned it back on, it would start back up - replace the solenoid and problem vanished
Posted on Aug 17, 2009
If it starts cold and runs for 10 min then it sounds like the fuel cap is not venting properly, try runnin engine with fuel cap loose and see if it dies. 9 times out of 10 the fuel cap is the culprit. Let me know
Posted on Nov 30, 2009
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Had the same problem with an almost new Craftsman w/ Intek 20.0 HP. Check all the "usual suspects" and had to have a tech come out. He had me start it. It ran for a few minutes and stopped (per usual). He immediately went to the Anti-Backfire solenoid. It is an electrically operated "plunger-style" fuel line blocker. They are famous for going bad. The part is about $65 and its sole purpose is to starve the engine of its fuel supply at shutdown so it won't backfire. If it is disabled, the user must throttle the engine down for 10 seconds or so before turning the key off in order to avoid backfires. Gee... let's see, 10 seconds of my time each time I use the mower vs $65 part ... No contest! Remove the solenoid, take a pair of electrician side cutters and snip off the tip of the plunger and reinstall it. Problem solved ! ! !
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