Garden

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

Check to see if the switch and terminals are free from rust and replace any damaged or broken spark plugs wires as necessary. Alternatively, it could be a bad ignition module. A simple way of testing the ignition module is to leave the car idling for 30 minutes and then tap the ignition module with a screwdriver.
A spark plug might be defective and needs to be replaced.

If your chainsaw has a defective spark plug, it cannot create an electrical current to ignite the system. Remove the spark plug and inspect if it is dirty, cracked, eroded, or damaged. There may also be a heavy carbon buildup or a burned-up electrode.

If the ignition coil does not have spark, it`s time to check its wires. Use a test light to check the continuity on the signal wire and power wire on the ignition coil. If both wires are functional but the coil fails to produce spark, the ignition coil or the ignition control module is bad.
Loss of spark is caused by anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. This includes worn, fouled or damaged spark plugs, bad plug wires or a cracked distributor cap.
A Bad Crankshaft Position (CKP) Sensor

If the crankshaft position sensor has failed completely, it will not send a signal to the (ECU) at all. Then, the computer won`t send any fuel to the injectors. This will leave you unable to start the car.

If you have an electric chainsaw that won`t start, first make sure that the power cable is connected to the mains, then check whether the cable and plug are damaged. If they aren`t, the problem could lie in the motor which, for example, may have worn or damaged brushes.
A failed crankshaft positioning sensor can cause your engine tp have no spark. In most modern ICE engines they all use electronic ignition and engine management systems. Theses systems depend on the signal sent from the crankshaft position sensor to determine what cylinder is coming up on top dead center (TDC).
If no spark appears, check for broken wires, shorts, grounds or a defective stop switch. Once you have confirmed that the stop switch is working, reconnect the spark plug lead.
A weak spark on a Husqvarna chainsaw can be caused by one of these misfiring components in the ignition system. Properly maintaining and cleaning the saw on a regular basis will prevent most spark issues. Most problems can be isolated easily and fixed with a few simple tools and parts.
Incorrect timing is the most overlooked and misdiagnosed cause of a no-start. Perhaps you automatically think of ignition timing as the position of the crankshaft when the No. 1 plug fires. While this is important, it isn`t the only timing condition that can influence a no-start.
With a poor ground the starter ring return path may not allow adequate amps to return to allow a starter to reach the torque and speed to start. Normally, however, with a well tuned car and cranking, the engine will fire right up. Weakness, though, and it may not start.
Incorrect timing is the most overlooked and misdiagnosed cause of a no-start. Perhaps you automatically think of ignition timing as the position of the crankshaft when the No. 1 plug fires. While this is important, it isn`t the only timing condition that can influence a no-start.
In fact, without properly working spark plugs, your car more than likely wouldn`t be able to run at all. In this blog, our auto repair experts will take a closer look at why your spark plugs are so important, including what they do and how to know when it may be time to replace them.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

No spark how to disensemble
ANSWER : Try disconnecting kill switch wire off kill switch.or coil,unscrew screws out of LHS cover, Plus take top cover off,should be able to access wire.if still no spark,coil needs replacing

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I have a mac 3516 with a weak spark.I am looking for the gap spec
for the pickup coil.
ANSWER : The gap should be 0.5mm

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Spark plug gap
ANSWER : It should be about .020

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Powermac 310 no spark
ANSWER : How do I test the ignition module out off the chainsaw? Or how do I know an ingnition module is working properly prior to instalation?

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McCullough chainsaw won't start – McCulloch Quality Mcc1435a 14" Gas 35cc 2 Cycle Chainsaw Full Warranty
ANSWER : If it’s a old saw..The seal goes out on the crank next to the clutch,it’s called a grease seal, it loses the suction needed to pull fuel in to the engine, can be a tricky one to replace, but will spark a old saw back to life. You may want to replace both crankshaft seals ..First try a few drops of gas down the carb, if it pops off you know it’s a fuel issue

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McCulloch 3200 hard to start, I think spark is weak. Like new.
ANSWER : It sounds like the coil is bad.Thanks for asking and I hope it helps

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Need to know sparkplug type – McCulloch Eager Beaver 2.1 Parts List
ANSWER : Here’s a link to spark plug.

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I need to know the spark plug gap on my McCulloch 14″ 3200 series
ANSWER : 0.020″ should work well and is common on most saw engines. Good luck!

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