shock me when i hold on to spark plug and pull cork). Is there a condenser or something that could have gone bad weakening the strength of the spark? It doesn’t eben fire with starter fluid sprayed in the chamber.
675 Series 190cc 22″ Briggs Stratton Rear Bag Front…

Experienced gardeners share their insights in answering this question :
The magneto is self contained and the primary winding is grounded via the throttle stop, flywheel brake, or the low oil level sensor to ground the magneto enough to stop the spark from jumping the spark plug gap.
First check the oil level and make sure it is fully serviced.
Second check the Flywheel brake switch to see of the cable needs re-adjusted or replaced. There is a lever on the brake actuator that makes a ground on the primary of the magneto. ANY gound on the wire that goes from the flywheel brake, the throttle control (if so equipped) or the low oil level sensor will stop the engine from having spark. There is no condensor. The magneto is excited by the magnet in the armature each rotation of the fly wheel. Grounding of the magneto primary rreduces / stops the function of the magneto high voltage output.

You need to find out what is grounding the magneto primary when the engine should be in a running state.

Thanks for choosing FixYa,
Kelly

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 :

Your Mower Won`t Start:

Other possible causes include: Loose, Dirty or Disconnected Spark Plug in Your Lawn Mower: Check it out, clean off debris, re-connect and tighten. Dirty Air Filter: Clean or replace. Fuel Not Reaching the Engine: Tap the side of the carburetor to help the flow of gas.

Disconnected, dirty or fouled spark plugs are common causes for engines that won`t start. For small engines, spark plugs typically need to be replaced every season or after 25 hours of use. You should also check to make sure the spark plug gap is set correctly.
You Lose Power in the Middle of Mowing:

Here`s why this happens and what you can do: Dirty Air Filter on Your Lawn Mower: Clean or replace. Dirty Spark Plug: Clean or replace. Build Up of Clippings & Debris: Clean underside of your lawn mower deck as noted above.

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. If your ignition start or push button start needs replacing, consult a Briggs & Stratton dealer near you.
A full gas tank and oil reservoir are the essential first steps when checking why the lawn mower won`t stay running, but the problem could also be a dirty filter, clogged carburetor, improper fuel mixture, or a dirty spark plug.
If the engine will not crank, you likely have a problem with… Discharged / defective battery or faulty electrical connections. To address these issues, check the battery and charging system for problems. Faulty parts: potentially the safety interlocks, starter motor switch (open circuit), or solenoid.
Broken, damaged or corroded wire. Timing. Improper spark plug gap. Faulty ignition coil.
A dirty carburetor is one of the most common causes for a lawn mower not being able to start after sitting unused for months or years at a time.
If your Briggs & Stratton engine has a spark but won`t run, then it is most likely a problem with the gas or air intake in the engine. The spark on the spark plug ignites the gas in the piston, but if the air filter is clogged or the gas can`t flow, then the engine won`t start.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Oegn.comThe 675 has become increasingly difficult to start, till today when it appears to be getting no spark (I don’t see a spark, but it does shock me when i hold on to spark plug and pull cork). Is there a condenser or something that could have gone bad weakening the strength of the spark? It doesn’t eben fire with starter fluid sprayed in the chamber.
ANSWER : The magneto is self contained and the primary winding is grounded via the throttle stop, flywheel brake, or the low oil level sensor to ground the magneto enough to stop the spark from jumping the spark plug gap.
First check the oil level and make sure it is fully serviced.
Second check the Flywheel brake switch to see of the cable needs re-adjusted or replaced. There is a lever on the brake actuator that makes a ground on the primary of the magneto. ANY gound on the wire that goes from the flywheel brake, the throttle control (if so equipped) or the low oil level sensor will stop the engine from having spark. There is no condensor. The magneto is excited by the magnet in the armature each rotation of the fly wheel. Grounding of the magneto primary rreduces / stops the function of the magneto high voltage output.

You need to find out what is grounding the magneto primary when the engine should be in a running state.

Thanks for choosing FixYa,
Kelly

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

Spark plug firing order – Farmall Tractor C ,super Av, Complete Gasket Set
ANSWER : Firing order for 96 lincoln mark 8, 4.6 liter

What should the spark plug gap be on a weedeater trimmer 25cc
ANSWER : Set it at .025

Correct spark plug gap – Tecumseh Snowblower Snow Blower Starter Handle (Tecumseh)
ANSWER : Correct spark plug gap for 4.3liter 6cylinder 1500 Vandura

<!– from fixya rte –>Spark plug gap setting poulan pro 033. – Poulan Pro Prod/Poulan Weedeater Poulan Pro PP5020AV 20" Gas Chain Saw
ANSWER : .025″ plug gap

What is the spark plug gap for a ryobi string trimmer model # ry30550 ?
ANSWER : I can’t say for sure, but it’s PROBABLY about 0.035″.

What is the spark plug gap for a NGK BPM8Y – Echo Cs-400 Chainsaws
ANSWER : 20-25 thou which is around 0.6mm