Abby's Guide to Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more)
Username Password
Discussions Reviews More Guides
Abby’s Guide > Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) > Discussions > No Spark

Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Search For:
DRLMN1


Joined: Feb 22, 2005
Points: 12

No Spark
Original Message   May 29, 2005 6:17 pm
  I'm having a problem getting any type of spark on a B/S small engine. I changed the points and condenser yesterday and checked the coil with a home made tester with a 6V battery. With that I got a spark to the spark plug.  Which to me indicates the secondary and primary is working. Using a multi-meter connected to the plug wire and ground, it appears to have voltage to the plug. The point are set right and the gap between the magneto and flywheel are set. I've checked everything I can think of to check. Shorted wires, open wires, etc. The engine is a 92982, type 1704. There is no kill switch, and if there was I wouldn't be getting any voltage at the plug wire when using a multi-meter. I'm lost as to what is going on. Any help would certainly be greatly appreciated. Thanks
Replies: 11 - 13 of 13Next page of topicsPreviousAllView as Outline
DRLMN1


Joined: Feb 22, 2005
Points: 12

Re: No Spark
Reply #11   May 30, 2005 11:17 pm
snowshoveler wrote:
hey folks ...

snowshoveler reporting for duty. i kinda let this one go thinking  that you would be running by now...however ?

DRLMN1...im a master teck for briggs and certified for the rest,so im kinda lost when you say you used a home made tester with a 6 volt battery.

im not gonna say it cant be done but your engine has magneto ignition not battery ignition.when you apply voltage to the coil you fry its internals.

the tester made by briggs is a simple thing that connects to the coil wire and to the plug or block it has a little window in it and if spark appers in it when cord is pulled then coil is okay ,if no spark present then check points and condensor which you did.if still no spark then replace coil,please note -new electronic is cheeper than old point type 

it sounds like your coil is burnt but you might have come up with some new way to test them (please explain)

your new points could have some anticorrosion material on them preventing contact,you could check with multi meter .you just need to check the wire coming from them to coil .check for continuity while turning flywheel by handand noting results with meter.

later chris

   Chris, I will try to explain the tester. It seems to work okay. I've taken a 6V lantern battery, attached two leads, one to the plus side and the other to the minus side. Solder a 6V bulb to the plus side. On the engine, make sure your points are in the open position. Attach a spark plug to the plug lead and ground it. I used alligator clips. They work good for grounding. Ground the minus side of the battery to the frame. Momentarily touch the contact point of the condensor. You should see a spark at the air gap of the plug. This is suppose to indicate the primary and secondary windings in your coil are working. It didn't fry anything. I hope I explained it good enough to understand. I did this to the magneto I thought may be bad and to a known good one. I put the one in an engine and it still works fine. Back to the other one now. I did clean the points off befores I installed them. I didn't realize it before, but this engine appears to be made up of maybe three different engines. It has a gear reduction on it also. The guy uses it on his cement mixer. In my original post I gave a model number and type. Now I'm not sure what it is. Its probably at least 30 years old. He did ask me if I could find a new one one with a gear reduction on it. Anyway when I use a multi-meter, I do get voltage at the plug lead and also the  electrode. Just can't get a spark at the air gap? I have a feeling it is a spark plug problem, althou I have tried several different ones. J19LM, J8, C8J, etc, etc. I have re-adj. and re-checked everything numerous times, and cannot find anything wrong or obvious that would cause this. It may be something simple as hell, but it sure has given me fits.

Any help will surely be appreciated. Thanks
This message was modified May 30, 2005 by DRLMN1
Eric


Joined: Feb 19, 2006
Points: 1

Re: No Spark
Reply #12   Feb 19, 2006 7:23 pm

I just wanted to let you know how your “discussion board” helped me resolve a no start on my Rotor Tiller.

 

 

I bought a Rotor Tiller last spring that quit running at the end of the summer. I haven’t had time to return the “Tiller” to the store I purchased it from, until recently which I found out the ignition system had no spark .The stores shop said the ignition coil failed and there was no warranty covering the failure. The cost for the repair would be around $ 85.00. Before spending $ 85.00 on a Rotor Tiller less than a year old I contacted my dad who is an Auto Technician to give me his opinion. After talking to a few small engine technicians he could not get an exact test for diagnosing a coil on a small engine. The small engine shops my dad visited said “the coil would have to be removed and brought in for testing on their equipment”

 

He removed the coil and took it to small engine shop and they said it was not in working condition. He ran a few test on it with his meter and he questioned the coil was bad. So he started researching the internet and came across "Abby’s Guide Outdoor Power Equipment" and found a post by DRLMN1 (Dennis Lemmon) dated May 29, 2005 on a no spark and how to test a coil. My dad followed the test using a 6 volt battery charger instead of a battery and found the coil in working order. After further diagnosis my dad found a “terminal end connection” on what he said “the transistor ignition” not crimped correctly and repaired the problem.

 

Thank you, for your help, Dennis!!!

 

E.F.

DNK1


Joined: Jan 11, 2006
Points: 20

Re: No Spark
Reply #13   Feb 21, 2006 1:13 pm
I'm in agreement with snowshoveler, an electronic coil will take away all the guess work and save a ton of time .
Replies: 11 - 13 of 13Next page of topicsPreviousAllView as Outline
Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Guide   •   Discussions  Reviews  
AbbysGuide.com   About Us   Terms of Use   Privacy Policy   Contact Us
Copyright 1998-2024 AbbysGuide.com. All rights reserved.