Does your Kawasaki FC420V engine have a Weak Spark? Part 1
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- čas přidán 26. 08. 2024
- This is a John Deere 170 with a Kawasaki FC420V that has a very weak to no spark.
Igniter Ignition Module for FC420V amzn.to/2QMh94w
Ignition Coil & Boot for FC420V amzn.to/3twKxKp
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I admire your patience.
Helpful video. I’m having the same problem. Replaced igniter. No luck. I will test magneto tomorrow.
I admire your tenacity in checking out all of these parts! My buddy had a John Deere 265 with a similar setup. We did pretty much the same tests only without the igniter. It would not start with a new ignition coil installed. Then I disconnected the wiring harness and tried starting it and varoom! It started right up! Only thing is the blades would not turn for some reason.... Whenever I put the connector back together, it would not start again. I ended up cutting the plugs off the ends of the wires and using wire nuts to connect the wires. It still would not start. I found out if you leave the two white wires disconnected it would start up, but once connected, it would not start. The white wire connects directly to the igniter!
Alright alright, you got it! Great video! I love watching the troubleshooting process, it teaches me a lot and helps me tremendously
Alright!!
Top man - you hit the spot and saved me loads of wasted time and money, thank you.
I'm glad it helped. Thanks for watching!
You’re remarkably patient. I would’ve fixed that thing with a stick of dynamite 🧨😊
Excellent video
Having the same issue with my 170. You got me running again.
Many thanx I was about to give up and part it out
Glad it helped!
Thank u soo much !!!! I changed the coil did all the same things you did. I was stumped !!!
I'm glad it helped!👍👍
Good finding this guy knows his stuff!!! Awesome guy!!!
Thanks!
Those OE coils are expensive , wow most people don't like spending that kinda money and then you have to figure in labor cost . I don't us OE Parts either . Thanks good video
very good video, thanks Lewis
When under pressure, the spark might not be strong enough to jump the gap. It takes more energy for a spark to jump when under pressure, than it does at atmospheric conditions.
The curve is an inverted U shape :p
@@Shalmaneser1 Thanks, at what pressure is the apex ? every time i've seen a spark in a vacuum, it jumps further than it does at atmospheric pressure. What are the two minimum points, , ,or please point me in the direction to find the graph.
@@thomasgronek6469 en.wikipedia.org/wiki/Paschen%27s_law
@@Shalmaneser1 Yes, thanks. The u shaped curve's apex is at 10 mm of mercury, . A full graph would indicate what happens at high pressure. This is a vacuum
@@thomasgronek6469 Digging deeper shows that which gasses are present (and at what percentages) also affects conductivity.
weak spark rabbit hole. Ignitor, coil ...nope. had everything correct on the ignitor wire or at least I thought. I found transient dc and ac voltage on the kill wire going to the switch. It went away when I unplugged the voltage regulator but the vr wasn't the issue. The wiring harness for the kill wire and the charging system had partially melted and allowed dc voltage on the kill wire confusing the ignitor module. This mower has been hard to start for years but it starts like a champ now. the connector I'm talking about is between the voltage reg and the engine.
I have that same engine in a John Deere that I picked up for free. I am about to install it into a 1988 Toro 11/36 riding mower.
Nice!
@@SmallEngineDIY I'm watching your videos to try and pick up little hints and tidbits of info to help with my build....KEEP UP THE GOOD WORK SIR!
Great video and guidance for fixing my lx176
Valves and timing. Wore out can. Replace cam check keyway.
turned my coil upside down took the igniter off longer plug wire now it runs fine
Do you have a part # for that coil i heard Prime line makes a coil cant fine # for fc420 .
Thanks brother
The ignitor is probably bad or not properly grounded
I have a 160 with a fb 460 v motor and is missing the wire to the igniter. The igniter is there but no wire connection and I can't find any wire disconnected or cut. How does it go or how could I wire it?
I just had the same issue. I bypassed the spark generator and it ran fine. What the heck. Taryl Fixes all has a video that relayed newer after market magnetos need to be flipped and the spark module deleted. As a side note the magneto was new and I could not get any spark out of it- I did not flip it. I used an old one out of a junk motor from a walk behind with the spark generator removed from the circuit.
Thanks for that. Found the video:
czcams.com/video/xBGsFmqdnc0/video.html
you have multimeter set to 2K kilohms or 20k kilohms. I tested my original ignition igniter on 2kilohms and reads 1.38 ohms. where get specs for ohms on igniter . I order new igniter via Amazon. hoping its problem,,, if not going to test coil.
Change both of them and your done with it , every time, one fails later if you don’t
I thought you needed to have the coil off of the machine to ohm test?
Was that new coil and OEM or another aftermarket? I'm running into the same issues with this same engine on my LX172. Haven't changed the coil yet.
Change ground point
Unfortunately for me, I lost confidence at 6.00 mark on the ohms readings...hope it ended better but I'll never know...
Hello I have one that does not have a stator so I bought new coil and module do you have a vid on any help to get it hooked up properly?
What the ohms on the igniter supposed to be
Hello, I just saw this video last night and have a JD 260 with the FC541V engine with the same issues. Did you ever find out why it stalled and wouldn't start after the repair?
Yes. It turn out the new spark plug was not producing a good spark. Watch the final video on the series and it will show what happened.
The kill to coil is still over spec.
Mine is doing the same thing after sitting. The battery was dead and I jumped it and ever since it backfires or runs for 10 minutes with a closed gap on the plug. I'm going to order the ignition components and install the next time we're at the property. A simple task as new tires and battery has consumed 2 weeks trying to get it to run so much as when you turned the motor over it made me depressed.
I hope you get running. Let me know how it goes.
He didn't let you know
Going down one Rabbit hole after the other. First buy the correct BM11 spark igniter.
Is the coil different if the engine has an igniter ?
Yes it is. If igniters were used instead of points, but before the modern magneto's.
@@SmallEngineDIY someone must have taken the igniter off my engine but it’s weird because it was running without one then I put a new coil on and no spark 🤔
Wow
Your valves set at 6 thousdance brotherman.
No
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