8 HP Engine

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 :

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.
Broken, damaged or corroded wire. Timing. Improper spark plug gap. Faulty ignition coil.
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.
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.
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.
The proper method to check for spark is with a spark tester. It resembles a spark plug but has a sunken center electrode that simulates a load on the coil. Holding the plug wire and seeing if a spark jumps to ground is inconclusive. The spark is arcing in atmospheric pressure.
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.
Weak sparks are orange or red and may be hard to see in daylight. If you did not see a spark, remove the coil wire from the distributor cap. Attach the spark tester to the distributor end of the coil wire. Crack the engine and check for a good spark at the spark tester.
One of the key factors that makes a spark plug work well, or not, is the size of the gap between the electrodes. If the gap is too small, the spark will likely be too weak and cause the engine to run poorly or with poor efficiency.
Misfire – A cylinder misfire occurs when the spark plug can`t ignite the air-fuel mixture. This can occur because of worn spark plugs, contamination, cracked spark plug wires, or other problems.
One of the key factors that makes a spark plug work well, or not, is the size of the gap between the electrodes. If the gap is too small, the spark will likely be too weak and cause the engine to run poorly or with poor efficiency.
Spark plugs may become less effective at doing their job due to time, wear, or other electrical/ignition system issues. They may become “fouled” over time due to combustion, contamination, or overheating, losing their ability to spark the air-fuel mixture and dissipate heat away from the combustion chamber.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Engine 8 Hp: gx240 8 hp no spark…
ANSWER : I have one that did the same and found out it was the interanl coil…

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Won’t start, new coil, weak spark,
ANSWER : If i remember correctly these have electronic ignition the module may need replacing but beforedoing any thing drastic try disconecting the oil alert wire that sometimes gives a bit of pain youdoit

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Engine will not run but a few minutes at a time
ANSWER : Check your spark plugs, see if they are failing, if they are then your motor is getting to hot. meaning that you either have the fuel mixture set to high or the setting on the spark plugs are not correct causing you to burn hot.Please rate

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I need the spark plug gap for an Ariens ST624E. the spark plug = 21533500
ANSWER : The recommended setting is .030″

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No spark on a 126T020675B2 Briggs 6.75 hp mower engine
ANSWER : Gap needs to be 10 thousands of a inch done with a brass feeler gauge ..mag/flywheel has a spot with a magnetic field if you look you can see it it should make a 1/2 wrench stick to it if not replace mag/flywheel ..check key way also

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I have proplem start the engine i check the spark from the coil to sparkply and i find out no spark so i order the coil and i steal have a problem , the kill switch is working ok.
Thanks for any help
Demetrios
ANSWER : Have you put a new sparkplug in. Also check that the oil level is full. If still no go, check the spacing between the coil and flywheel.

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What s thefuel mix for a mercury 15 engine – Honda 8 HP Engine
ANSWER : 50 parts petrol to 1 part oil

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Plug gapping geo tracker – Champion International Champion& Small Engine Spark Plug 8 Pack
ANSWER : Normally is .030″ however Due to the variety of engine and equipment configurations, your best source for spark plug information is your engine or equipment operator manual. download from www.fitness.manualsonline.com
God bless you

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