![]() ![]() spark plug, faulty ignition coil, plugged air filter or plugged spark arrestor. Step 3: Select your engine concern to understand related causes. This could be caused by a dirty air filter, damaged spark plug, low compression, carbon build-up on the muffler outlet screen, or idling problems with the carburetor. Weed eater wont start Starts and stops Youve got gunga in your fuel lines. Make sure there's no water in the fuel tank and the octane rating isn't too low. Step 2: Ensure you have fuel, that it's not contaminated nor stale. Examination of the spark plugs can sometimes give a physical clue of the underlying cause. ![]() Though spark plugs themselves are rarely the cause of the problem, they do interact with fuel delivery, spark delivery and mechanical functions. It's an excellent tool for diagnosing engine problems. Step 1: Check your ignition system.īe sure to take a close look at your spark plug within the combustion chamber. Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure Read more. Check the tip of the spark plug if it looks dirty or black, simply replace it. Start by unhooking the black rubber boot that holds the spark plug in place, unscrewing said spark plug right after. The guide examines the three primary areas necessary for proper operation of any engine: ignition, fuel delivery and mechanical functions. When the spark plug in your weedeater is bad, it can’t deliver the necessary energy that the ignition needs to turn over. If your lawn mower, power washer, weed trimmer, rototiller or other lawn & garden tool won’t start, consult our small engine troubleshooting guide.ĭesigned to help you diagnose problems with 2- and 4-cycle engines, this guide outlines diagnostic procedures you can use to get your lawn & garden equipment working again. On the few times I have had a problem I couldn't solve, the dealer would look at it at the counter, tell me what is wrong, then adjust or replace the offending part while I watched.From mowing the lawn to power washing the deck, warm weather means it’s time to fire up all those small engines that sat idle all winter. To check if your spark plug has gone bad youll need to inspect your part for common signs suggestive that it might be fouled or damaged. This was done overnight, and machine now starts and runs great.Īlthough we are both experienced mechanics, we really believe it is just easier to take these specialized machines to a specialist shop. He said they have had bad luck with rebuilding the carb, and recommend replacement. Finally took it to our local dealer who looked at it and said the carburetor needed replacement. Checked and cleaned the air, electrical and fuel systems with little improvement. Be sure to take a close look at your spark plug within the combustion chamber. ![]() Recently we were having a starting problem with the larger machine. We even entrust these machines to be used by the occasional (well trained) hired hand. Signs of a defective spark plug The engine requires repeated attempts to start or will not start at all.The engine misfires or runs roughly. Our machines are used for everything from maintenance of our private properties to fence line maintenance around our airport and mutual water company properties. They work better and are more reliable than any other trimmer we have tried. ![]() My neighbor & I have used Sthil trimmers for years. Symptoms & Repair Of A Clogged Spark Arrester On A STIHL Grass Weed Wacker In this easy to follow video tutorial I show you the symptoms and how easy it is to fix your grass weed wacker. I have a somewhat different experience with Stihl trimmers: ![]()
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