Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hello, my name is ***** ***** I am going to assist you with this.
What is the serial number of the genset?
I will need to know the serial number so I know which controller it has.
Take your time - I am at work right now, and very busy.
I work 2 day jobs, and normally only help Just Answer in the evenings, but sometimes I can sneak in a question when the boss isn't looking.
Oh, a vertical unit.
There is a small black wire coming out from under the engine cover. Follow it to where it goes, and disconnect it.
Check for spark again.
Do you have spark now?
I am talking about the fan shroud - the cover over the flywheel. The small black wire is the shut down wire. It grounds the coil to prevent spark from occurring.
If you do not have spark with that wire disconnected, the coil is bad, the magnet is missing from the flywheel, or the coil air gap is too large.
There has to be something there to be able to provide a ground to shut down the ignition.
Without means to shut the ignition down, there would always be spark as long as the engine is turning, and the coils are good.
Spark goes directly from the coil to the plug.
With no spark, the possibilities are few:
Coil not adjusted properly
Engine shut down should happen when the ignition system is grounded to prevent spark from occurring.
What are the numbers off the engine itself?
I will need the model, type and spec numbers.
If you got a zap from the spark tester, it is sparking.
Have you tried a new spark plug?
Ok, sorry about that.
Your engine does have a breather on it. It is under a separate plate on top of the engine, between the cylinders. There is a small rubber hose running from it to the air filter box.
I can't comprehend a gurgling sound, without being able to hear it,.
Have you checked the valves to make sure they are operating, and are gapped correctly?
Grounding the coils is the only way to disable the ignition system.