QuestionQUESTION: we have a Husqvarna 125 stick edger that will only run properly when you add a in-line spark tester on the unit.
take it off and it starts breaking up from an ignition miss.
How can we add resistance to the system?
ANSWER: Make sure you use an NGK Bpmr6a spark plug. GO GET A BRAND NEW ONE!!! I spent many hours troubleshooting and it was a bad spark plug.
You can try a Champion RCJ8Y...MAKE SURE YOU USE THE RC...this is a resistor spark plug.
FYI, we have had the same problem with several Husqvarna. We have been able to open the spark plug gap really wide on some model to get them to run.
First, try moving the ignition module back, increasing the air gap, as far as possible. It won't be much but is should move a little. Second, start increasing the spark plug gap and see if you can get it to run.
Let me know what happens with the new spark plug(s) as we have been searching for solution to solve this issue.
Eric
---------- FOLLOW-UP ----------
QUESTION: Good morning Eric,
I have tried all of your suggestions and still have an ingition problem unless i run the unit with an in-line spark tester installed to, I assume add resistince in the system. We have had this problem on other machines and haven't had any good results, but then didn't know about moving the ingition module either.
Will let you know if any thing futher helps.
Thank you so much for the help.
Roy
AnswerI called Husqvarna but all they told me was to use the OEM spark plug the parts list recommended.
I have, and only use the plugs they list for the equipment model number and am still having the same problem you are having.
Please let me know if you find a solution as I am looking for a solution to solve the problem. I may try using a different ignition module from a different piece of equipment but finding one that fits could be like finding a needle in a haystack and will take a lot of time as I will have to dis-assemble various machines to see what might fit and work.
Eric
