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1965 Montgomery Ward generator with Briggs and Stratton engine has no spark even after replacing ignition coil. What else could it be?

I put on a new ignition coil and a spark tester. I got it to light on the first pull but never again after that. What else could be the problem? It has 75 psi of pressure from the cylinder which should be enough.

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Posted on Jan 02, 2017

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SOURCE: briggs/stratton XM 6.75 hp quantam engine cv2300-OMBC

I have a brigg & Strat, works great but the oil keeps turning black, and it leaks throught he air cleaner. It is approx 1 yr old, bought it used but it looks new

Posted on Oct 20, 2008

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SOURCE: Briggs & Stratton Burnt Brushes

I did find out that the inner slip ring was worn down. Still unknown why and the repair tech we took it to twice just replaced the brushes and never looked at the slip rings.

My solution, which has worked for over two months now (knock on wood) is as follows:

The slip ring on this unit can only be replaced by replacing the whole rotor assembly. I looked at the width of the brushes and the width of slip rings. The slip rings are twice as big as a brush. The solution was to move the brushes outward by one brush length. In order to do that, I had to turn the brush assembly around because of the extra plastic on the unit and space it out one brush length. Note: Still hook the wires as if the brush assembly was not turned around.

I used an old brush assembly and cut the two areas where the screws go through to make my spacers and it works perfectly.

Posted on Dec 03, 2008

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SOURCE: briggs and stratton miss fires on one cylinder.22hp intek

possibly a commpression test might throw a little more light on the situation ,that will eliminate alot of speculation, and make it easier

Posted on Oct 25, 2009

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SOURCE: 8 hp briggs no spark,new coil ,new electronic

make sure the plug wireisn't grounding on sheet metal. Verify current to ignition module and that module is securely mounted for grounding. Negative side of coil to module, pos to ignition switch or starter button . Chk for current at coil +. . Coil -- should pulsate when cranking. Ensure there are no inline fuses, fuse box fuses, or fusible links incorporated into wires lesding to module. Good Luck_Ned_

Posted on Oct 31, 2009

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SOURCE: wiring on an old 5hp Briggs and Stratton engine

The "heavy wire" connects to the spark plug. It should have a plug connector attached. There are 2 small wires. One of them grounds to the engine block (probably through one of the screws that holds the magneto in place). The other wire goes to the condensor/capacitor.

Posted on Dec 30, 2009

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Fs38 Stihl weed trimmer extremely very hard to pull with sparkplug in but no problem with no plug.

A hard pull on that unit would indicate a sheared flywheel key. The key is part of the flywheel. Check to see if there are 'rub or scrape' marks on the outside of the flywheel. Adjust coil clearance to .010". Coils on those models are normally very reliable. Use a spark tester for lawn mower engines. Preferably with a light in the center of the tester wire. If it its an adjustable tester, adjust the gap to at least .065 to 0.85". The light tester should produce a bright orange light, the adjustable tester should produce a bright blue spark. I cannot find specs on those models, as dealers use the 'light in wire' type tester.

Mar 07, 2017 | Stihl Garden

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2005 cavalier turns over wont start plugs were no good put new plugs in used dielectric grade on plugs still won't start could I have put to much dielectric grease on plug wires

Trying to start the vehicle is there spark ? Your vehicle has plugs under center of valve cover .Pull the coil pack out , get plug wire cable set and use a spark tester . Check for spark . If plugs were no good you probably fried the ICM - ignition control module . Do you know what and where ICM is ? How to Test the Ignition Coils GM 2 4L Quad 4 The amount of dielectric grease has nothing to do with it .

Jan 05, 2017 | 2005 Chevrolet Cavalier

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I have power to my coil but none coming out on my 84 351 Windsor brand new distributor coil is good module came on new distributor I need help ?

Since the coil is getting power you need to get a spark tester or pull a cord of one spark plug and lay it on the engine and have some crank the engine. You should see and hear a spark. If not check fuses and check the ignition module - that is the device that tells the the coil to send a spark. You could also remove the wire from the coil to the dist cap and look for a spark.

Jan 04, 2016 | Cars & Trucks

1 Answer

I have a 94 yamaha blaster got it rain good for an hour and shut down clean the carburetor cleaned the Jets put it back together and started up ran fine to get home when to start it wouldn't startpush...

When it shuts down, pull the fuel line off the carburetor for a second and see if the fuel is flowing freely, the petcock could be clogged, if its free flowing, check the spark with an inline spark tester hooked up in between the ignition coil and the spark plug, they sell them at harbor freight for cheap. Then kick it over and see if the tester lights up and flashes. It sounds to me like the ignition coil is bad, usually when they start to go bad they heat up and then stop working. Or you could hook up a multimeter to the spark plug cap and the wire going into the coil and check the resistance and compare that to the factory specs.

Aug 06, 2014 | Motorcycles

1 Answer

P0440 and P0302 scan code - changed plugs and wires. Changed emission purge valve. All vacuum lines appear to be OK. Fuel lines are not leaking. Good spark to cyclinder two when using spark tester. ...

Cylinder 2 Misfire Detected po302 . Evaporative Emission Control System po440 The last digit on a misfire code indicates the cylinder number. A code P0302, for example, would tell you cylinder #2 is misfiring. Chances are the misfire is due to a weak ignition coil. Did you change the pcv valve? Remember to put the o-ring on the new one or this problem will happen.

Sep 24, 2011 | 1997 Buick LeSabre

2 Answers

Not getting spark

need more info (need to know what type of ignition system your vehicle has: (1) traditional ignition coil /distributor system, or (2) electronic ignition, but lack of spark problems are usually a faulty coil
on traditional vehicles, and on the newer electronic ignition cars, total lack of spark would be
a faulty ECM (electronic control module) - partial lack of spark (diagnosed with a HEI (high energy ignition) spark tester kit), would be caused by a faulty coil pack (in the waste spark system), where
there's 1 coil pack for every 2 spark plugs.
I bought my HEI igntion testere kit for $20, but Harbor Freight sells a similar unit for $10.
Hope this helps.

Dec 27, 2010 | Ford F-250 Cars & Trucks

1 Answer

Changed fuel pump. getting fuel to engine. but will not start.

Check for spark. Maybe a crankshaft position sensor is bad or a module.

Secondary Spark Test This spark tester looks just like a spark plug, attach the clip to ground and crank the engine to check for spark 91052p10.jpg
This spark tester has an adjustable air-gap for measuring spark strength and testing different voltage ignition systems 91052p11.jpg
Attach the clip to ground and crank the engine to check for spark 91052p12.jpg
This spark tester is the easiest to use just place it on a plug wire and the spark voltage is detected and the bulb on the top will flash with each pulse 91052p10.jpg
The best way to perform this procedure is to use a spark tester (available at most automotive parts stores). Three types of spark testers are commonly available. The Neon Bulb type is connected to the spark plug wire and flashes with each ignition pulse. The Air Gap type must be adjusted to the individual spark plug gap specified for the engine. The last type of spark plug tester looks like a spark plug with a grounding clip on the side, but there is no side electrode for the spark to jump to. The last two types of testers allows the user to not only detect the presence of spark, but also the intensity (orange/yellow is weak, blue is strong).
  1. Disconnect a spark plug wire at the spark plug end.
  2. Connect the plug wire to the spark tester and ground the tester to an appropriate location on the engine.
  3. Crank the engine and check for spark at the tester.
  4. If spark exists at the tester, the ignition system is functioning properly.
  5. If spark does not exist at the spark plug wire, perform diagnosis of the ignition system using individual component diagnosis procedures.
Ignition Coil Testing
  1. Remove suspect coil.
  2. Disable fuel pump by disconnecting inertia switch electrical connector.
  3. Reconnect the ignition coil electrical connector to the coil.
  4. Install spark tester 303-D307 (D81P-6666-A) or the equivalent.
  5. Crank engine while observing the tester.
  6. If a blue-white spark is not observed replace coil.
Removal & Installation To Remove:
  1. Remove the air cleaner outlet pipe if interfering.
  2. Disconnect the connector from the ignition coil. coilconn.gif

  3. Remove the bolt from the ignition coil. coilbolt.gif

  4. Remove the ignition coil on plug.
To Install:
  1. Install ignition coil on spark plug.
  2. Install ignition coil bolt. Tighten to 10 Nm (89 in. lbs.). coilbolt.gif

  3. Reconnect the ignition coil electrical connector. coilbolt.gif

  4. Install the air cleaner outlet pipe if removed earlier.
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Oct 28, 2010 | 1999 Ford Crown Victoria

1 Answer

Shuts off after running a while

Given the fact that you offer absolutely NO information about what "IT" is, I am going to guess at a solution for you.
I am assuming that you have a one cylinder Briggs and Stratton engine mounted in a riding lawn mower that sounds like you are dealing with a defective ignition armature, commonly know as the coil.
You can verify this by obtaining an in-line spark tester, the kind with a neon bulb that will show a visible spark while the engine is running,
Insert your tester in the spark plug wire and connect it to the spark plug, start the engine and run it until it "shuts off". Immediately try to restart it while watching the spark tester for a visible sign of spark. If you see no light flash or a very weak looking light in the tester, replace the ignition armature/coil.

Oct 29, 2009 | Briggs & Stratton Garden

1 Answer

No fire

First things first; press the primer bulb 10 times, then pull the starter cord 4 times, then remove the spark plug and look at the electrode, is the electrode wet, black, sooty? If the electrode is wet, the cylinder is getting fuel. So, the next thing will be testing for spark; you can purchase a spark tester at just about any autoparts store or online from someone like Harbor Freight. To test for spark, the spark plug is left in the cylinder but the wire is taken off...the tester is inserted installed between the tip of the plug and the ignition module; this is very easy to see and, pull the starter cord and watch the light on the tester, if the light flickers with every pull, you have good spark. Now, we check compression; you can get a compression tester from any autoparts store, if you don't want to buy one, stores like AutoZone have a tool loaner program...remove the spark plug and then screw the plug end of the compression tester into the spark plug hole; pull the starter cord 4-5 times and look at the meter, if it reads anything below 90psi, there is an internal problem such as the piston ring is stuck.

Now, depending on all of these checks, you can pinpoint the most likely culprit. If the spark plug is wet, the spark tester light flickers and compression reading is good, try cleaning or changing the air filter first, if you still can't get it to run, try spraying a bit of carburetor cleaner in the carb to clean it and try again, if that doesn't work, try replacing the spark plug, if that doesn't work, you may have to get a rebuild kit for the carburetor. If the spark tester light does not flicker, you will need a new ignition module. If the compression reading is low, the motor needs a ring job.

I know this is a lot of information and it may sound daunting but if you follow these steps, you will get your blower running.

Oct 26, 2009 | Garden

1 Answer


usually when coil dies the computer shuts off fuel pump to stop you catalytic converter and engine filling up with gas! do you have a eng light on if so scan with:OBD 2 scan to retreve you problem don't get$$ any how do you have SPARK when coil is connected?have you tested with a spark tester tool not spark plug not efficient!!! also have you tested all the in car fuses and under hood fuses with circuit tester tool not pulling and looking!???good place to start!

Jan 10, 2009 | 1997 Dodge Intrepid

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