Question about Craftsman 17.5 hp 42 in. Deck Lawn Tractor - CA Model
I have a craftsman lt 1000 with a briggs 17.5 hp. that starts and will idle but when i try to throttle up it just starts to backfire alot, it wont die it just backfires, i have adjusted the valves and i took the bolt out of the flywheel and the key way is in good shape and doesnt look like it has been knocked out of time at all. I dont know what else to look at, any suggestions. thanks
Sounds more like the carb sucked up something if u take it off and tear it down let soak in solvent than blow air thru body to dry and clear passages dont mess with adj
Posted on Sep 24, 2009
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Posted on Jan 02, 2017
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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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May 02, 2010 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...
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