I replace the coil and spark plug still no spark any Ideas?
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Check that the gap on the plug is around 20-25 thou. or the thickness of the cardboard of a cigarette packet. Are you sure the plug outer is getting earthed? Watch out for fuel / air mixture being blown out of the plug hole in the cylinder.
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 :
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 clutch pads are worn out, the motor will run, but the clutch pads will not engage the clutch drum. As a result, the chain won`t turn. Make sure that the stop lever is disengaged. If the stop lever is engaged, the chain won`t turn.
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.
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.
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.
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.
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.
Causes of a carbon-fouled spark plug include a dirty air filter, excessive driving at low speeds, too rich of a fuel/air mixture, dirty fuel injectors or idling your vehicle for too long.
Remove a plug wire and insert an old spark plug or a spark plug tester into the end of the wire (the plug boot). Place the spark plug on a metal surface on the engine, or ground the spark plug tester to the engine. Then crank the engine to check for a spark. No spark indicates an ignition problem.
The low voltage primary circuit operates at battery voltage (12 to 14.5 volts) and is responsible for generating the signal to fire the spark plug at the exact right time and sending that signal to the ignition coil.
Turn on the ignition switch and pull the starting cord quickly. You should see a spark in the plug gap. Since the spark may be faint, it may help to do the test in a dark area. If there is no spark, check for a broken or shorted (bare) lead wire or bad switch.
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.
Discover Relevant Questions and Answers for Your Specific Issue
the most relevant questions and answers related to your specific issue
Ryobi PCN 4545 starts perfectly but chain will not turn.
Can you help?
Hi, have you released the chainbrake? Regards Phil.
What is the spark plug gap for a ryobi string trimmer model # ry30550 ?
I can’t say for sure, but it’s PROBABLY about 0.035″.
I have no spark on my ryobi 990r. i have replaced sparkplug. i have checked and have plenty of fuel
Make sure the gap on the plug isnot to wide other wise u will not get any spark or just a weak spark
Ryobi No Fire at spark plug – Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer
Have you checked just the plug wire for spark. If you’re not getting any here, then you may have a bad magnet-or. So if the spark is happening only at the wire and not through the plug. Change the plug. Also check the cut off switch. It could cause the no spark, to keep it from starting.
No spark on plug when activated against cyl head .this tool is brand new and only ran for 5 mins then wouldnt start
If you want to check for a loose wire on the on/off switch or a problem with the spark plug wire contact on the plug, but personally if this tool is new I would return it and get a new tool without having to fix this one. Also I would try another spark plug before considering taking back. Sometimes plugs go bad
No local Ryobi dealer; what other brand chains will fit my 18″ Ryobi ?
Any saw service dealer can fit a chain to your saw. ‘Oregon’ saw makes bars/chains for about any saw made in the last 50 years or so. Just take the chain itself in to get a replacement. Good luck!
Spark plug gap ryobi bent shaft cs30 – Ryobi 30cc 17" String Trimmer Zrry30530 Wcurve Shaft
The gap should be .025Jim
Do you need to be an authorised repairer, to replace the spark plugs on your petrol models of lawnmowers or chainsaws
Hi Donna,No, changing the spark plug is quick and easy. No need to go before the committee.You will need some deep sockets and a ratchet (Plugs come in 5/8″, 3/4″ and 13/16″).They get HOT. So if it’s been running, let it cool.Pull the plug wireUnscrew the old one.Screw in the new oneplug in the wireThats it