No Spark? - Test and replace a Briggs & Stratton Ignition Coil.
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- čas přidán 23. 06. 2024
- In this video we take a look at ignition coils on a common Briggs & Stratton Intek riding lawnmower engine. I show how to test the coil and replace with a quality Hipa replacement part. This is fairly simple job and easy to diagnose as well
Ignition coil air gap information for most Briggs engines - outdoorpowerinfo.com/engine_s...
Hipa Ignition Coil www.hipastore.com/products/hi...
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I give you a little tip from an old mechanic that's me.
I've been doing this for a long time. I never mess with a feeler gauge all you need to do is get 3 x 5 index card and stick that up against the flywheel and let the magnet pull the coil up against the flywheel and tighten it down.
Absolutely a good tip. For these videos we like to show the exact manufacturers recommendations as much as possible but we always appreciate others sharing their real world experience and tips. Thanks!
@@HipaParts now in
I used a match book 😂😂😂
LOL. I use a business cars. The cheap thin ones, not the fancy thick lawyer ones with texture and embossing.
Excellent presentation. You may have helped fix my riding mower not starting. It's very hard and very expensive to get help from local service dealers.Thank you 😃
Very helpful, thanks!
Thank you very much, very helpful. I appreciate a lot that you made this video, best wishes
thanks dude
Well done of explaining install to those who might not be dyi,, this will help us big time. Thankyou
Thanks!
When the listed 'fix' does not work, be sure to CLEAN the coil mounting surfaces ON THE ENGINE of oxidation, rust, and corrosion that will insulate the coil from its electrical ground to the engine. Also if the embedded magnets on the flywheel are 'rusted' ... also shine-up the magnet surfaces to 'bright'.
Clean your flywheel good with a wire brush and sand paper. You will get a better spark.
I did the same test based on your diagnostic.. Now you've got me wondering if its the break or the seat safety that's messing with it... the search continues!
Thanks Good Vid. Do you know where I could get a ign coil for an old Brigs cast iron block with magna matic ignition. .Magnet is right on crankshaft. !950's. External points.
Maybe I missed it but since the ignition coil is in a fixed position due to 2 screws, is their a specific rotaional position for the flywheel? In other words is it important to "line up" the flywheel with say the, "on center point" of the ignition coil?
That engine souned great....
So what does it mean if it don’t work at all with 3 different coils and still not getting spark
Can we guess what killed that old coil? All that mud over heated it. That is if the coil is really bad. I would of removed the old coil. CLEANED it up. Polished the mounting areas where the screws go. Needs to have a good ground to the block. Regap/install old coil. Test for spark WITHOUT the kill wire on. Easy right? U R welcome.
I have a briggs 7.5 clean flywheel, new coil 3 tried. New plug, still no spark.Anyone have seen this? Suggestions?
Thanks
Maybe check the magneto on the flywheel or the wiring connections?
I replaced ignition coil and still NO Spark even when removing kill wire.. with Spark tester NO spark! I ordered a brand new one.. installed correctly.. magnetism is strong.. NO spark.. not sure what to do
I got the same problem with three coils plug pulled out put a spark tester on it good spark put in brand new spark plug and kills the spark wont start been battling it for 5 months and I am a Marine Tech have plenty of these brigs apart and instlled plenty of coils WTF?
@@madmanmechanic8847 , take sand paper and shine up all parts where the coil is bolted , it must have a good ground, wire brush the bolts too , probably wouldn't hurt to add a wire from the coil to the engine block
@@jimthomas1989 Dude are you ready for a nut scratcher WTF story? I do Marine repair for a living and also restore Muscle cars. I got a Briggs NOS coil off of ebay. Before I installed the coil I took my drill and a wire wheel and cleaned the rust off the flywheel ! It is spotless no rust the magnetic part is spotless no rust . I installed the NOS Brigs coil set the gap with packaging from the coil about the thickness of a business card. all wiring all connections for the coil have been flushed cleaned and no rust or dirt. I took a ohm meter and check my ground block for the wire that kills the ignition and it was good was not grounded out. I bought a brand new plug for it. I left out the plug hooked a spark plug tester on the coil wire gave her a nice pull I GOT SPARK O COOL! I installed the plug hook up the coil wire hit the primer bulb got fuel in the system and gave her a pull no no pop no fart no nothing ! I pull the spark plug hook a ground to it to the engine and gave her a hard pull dead as a door nail no spark. Ok well maybe the key way is off for the fly wheel its cracked I order a package of key ways pull the fly wheel not broke but off set a little I though ok this is it I cleaned all of the fly wheel inside and out ! Installed the new aluminum key way tighten the flywheel nut hooked up the spark tester wow great spark installed the plug primed it and cranked it over no pop no fart no nothing deader than a door nail checked the spark again with plug on DEAD NO SPARK When down got another brand new plug put that on same thing passes spark test with no load as soon as I put on a plug to it DEAD NO SPARK! I ordered another mag off of Ebay and ordered the wrong one it was for another engine my mistake. I went down to the parts house took my engine cover down and he ordered the correct coil for it with a life time warranty ! Brought it home and this time I took and adjusted the kill point linkage from the mounting pad for the wire for the coil I made sure the metal tab that kills the engine was far away and not touching . This time I installed the coil to Manufactuers specs the gap is 0.010 to 0.012 I got a feeler gauge and set it rigt on the nats ass 0.10 rotated the fly wheel and it was not touching and I had good gap on both sides of the coil . Hooked up the spark plug tester I had nice bright spark oh cool slap the second new plug in hook up the wire no pop no fart I even sprayed carb cleaner in the cylinder nothing ! Pulled the second brand new plug hooked a ground wire on it pull the engine over very fast and deader than a door nail . I took tne new coil off took the mower out and parked it by the trash trailer I am done dude . Work on my fair share of briggs and small gas engines this one kicked my right in the nuts no mater what I did and the sad thing its got goo compression I dotted my I s and crossed my T s so many time I ran out of ink in my pen to cross them out
I don't have no schooling on what all i know about working on engines take off all your safety button wiring just leaving on the white an black to the carburetor bowl solenoid and thats your problem
I cant find the right coil, Do you have a part number on that?
Neither can i so im just gonna go with one that looks similar to that one my original coil is more rounded than it looking square like the replacement so I'll get a square one then.
And i have gotten new replacement coils in the past that weren't the same shape and the mounting screw holes didn't match so im taking a chance on the square one of its mounting holes not lining up but it should his did
I washed my mower.....now no spark...I wonder if cold water got on coil.and ruined it ? ....I tried another old plug...I guess I'll try another one
It more likely soaked your flywheel it happened to me before dry that off next time and then it'll start up and dry your ignition switch and solenoid to and it'll go
My coil is damaged it looks bad. I gave that engine away and bought a $40.00 twin cylinder craftsman briggs engine 22 hp and am slowly working on it now its greasy dirty did see someone's been in the ohv covers so may have to go over those later on there's no sense into them using rtv sealer when i know they still sale those ones ohv cover gaskets so why the red sealer now i may have to scrape all that shit off.
The 22 hp hasn't ran in a long time from looking at the spark plugs so am gonna take the engine shroud off and the carburetor go ahead and clean that up i had the engine sideways and upside down so its got oil dripping out places it shouldn't be thats normal though from how i was working on it its nothing big engine turns over good with plugs in and out good compression.
Now i just wonder what mowers has the old craftsman briggs 22 hp on them
The 4 terminals coil on Honda GX engine are not tested like the common coils
How about showing how to test them because people are buying coils and don’t need to
Cool, but you didn't really ever actually test the coil itself..
like for example with a multimeter perhaps?
Hello! May I ask a noob's question? Why do you have the spark plug on the engine to test it ?
Would you have more explanation on this mysterious kill wire? How it works? Thanks!
What is the ignition coil used for?
My Briggs and Stratton 850 Staub brush cutter is not starting.
As the engine spins around sends spark to the piston to burn the gas so it'll stay idling its kinda like a piece of the brain to the engine
Or is like a power supply to a computer you know without that it ain't gonna work
You could hook a switch to it
Or splice it into one of the wires to the ignition so once you turn the key to off the engine shuts off
U wouldn't happen to have a part number for that coil
the new coil comes with 3 connections, 1 has the lug on it that fits the coil, another has a lug that looks like a ground terminal and the 3rd doesn't have anything on it (just in case you weren't confused enough already 🤨)
My old Kohler command cv491s single cylinder engine had that one wire from that to the ignition switch spliced into the white one and one to ground the 3rd stays unconnected
That machine has been left out in the weather. Just look at the rust on the flywheel. Making trouble for the future.
Why does nearly everyone replace the plug first? It's the cheapest repair that will never work for you. How many times have you found a real dead plug? Maybe 1 in 40. Now cleaning said plug, yes I agree. That plug was perfect. Main jet is a little rich. See the base ring and how black it is? She is running good for a mower engine.
Cars often got bad spark plugs Bad neans they working but need adjustment due to burn out 😂. But they working much more often and high RPM 😂 But about Small engine -you right
Maybe clean the flywheel, it’s all rusted so how’s it supposed to make a viable spark? 🤦♂️
You need to learn how to use your spark tester guy. Open the test gap up more. You nearly have a dead short. Also that tester will tell you more that just oh yeah I see spark. The more you open the gap the more load is on the coil. You need to load test the coil at 0.25" wide gap. Should throw spark that far. If not your coil is weak. Easy right? No problem.
No feeler gauge required. Use a piece of junk mail. Easy right? U R welcome.
Need to clean off all the mud and oil from the COOLING FINS. These are AIR COOLED ENGINES. Do I need to elaborate more? This is a YEARLY must do in yours and ever other engine manual out there. Neglect this and you are looking at engine damage. Scrub down that entire mower fella.