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Small Engines (Lawn Mowers, etc.)/Kawasaki Mule 3010 won't start



I have a Kawasaki Mule 3010 (700 hrs) that was working fine until parked for a week and now it won't start or fire at all, even when spraying Ether into the carbs with the throttle open.

Compression is at about 140 cold on both cylinders and there is a decent looking spark on both plugs using an inline tester.

What on earth could be causing this? The only thing I can think of is that the timing has slipped somehow (maybe the Igniter is bad) but how can I check?
This is confusing because it seems that only 3 things are needed to fire and I have all of them: fuel, compression and spark.



ANSWER: Try new spark plugs...doubt that is the problem but I have wasted many hours trouble shooting to find out the plugs were the problem. Is it fuel injected?  Don't work on many atv type products but you did a good job testing...did you try priming with gas instead of starting fluid?

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QUESTION: Yes, new spark plugs and it has a carb. The engine is a kawasaki FD620D.

I haven't tried squirting fuel in yet since in past experience, starter fluid will start an engine briefly (assuming spark and compression) and I've used it many times on small engines to isolate fuel and carb problems.

Failing that, what else can it be, it has twin cylinders and a single carb, so you'd think one cylinder would fire?

Could the ignitor be the source of the problem? It's an expensive part to swap without being confident and since I have a spark, I'm stumped.

It could be the igniter but like you said it is an expensive part not knowing for sure it if is the problem.

Did you download the engine service manual?  Use the URL below:

Page 7-14 provides resistance specs...easy check and you only need a meter.

An inline spark tester is a very handy tool.  I prefer the Briggs & Stratton 19368 Ignition has yet to let me down when testing ignition systems and I had one once that would just the spark plug gap, shock you but when the inline tester was used the spark would not jump the gap.

You really only need one.  Just take both plugs out, then insert one plug back into the spark plug wire and ground it...just safe to keep the circuit closed.  Then just use the inline on the other spark plug wire and check for spark.

I'm sure other inline testers will work but most of my experience is with the Briggs one.


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Eric A. Jones


Lawnmower Repair . Certified Master Service Technician from B&S. Have 23 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.


Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. Continued working on mowers part time as I completed 20 years of military. Retired from the military on a Friday and continued in the lawn and garden industry the next Monday.

MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

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