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2013 Massimo MSU 500 no spark

Bluegill

By Bluegill
in Massimo UTV SxS Forum

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Nate T. Contributor

Nate T.

Posted
Posted

Well that's not a real great way to diagnose a spark.  There is an inexpensive tester that plugs inline and has a light.  You should use one of those instead.  That way the plug stays in the engine and has a chance to operate in normal conditions with respect to electrical ground and compression.  

Nate T. Contributor

Nate T.

Posted
Posted

Also, you can troubleshoot the coil with a simple multimeter.  It will be right upstream of the spark plug.  Read the primary side and the secondary side (spark plug side is the secondary).  You will have a resistance value on each side.  If either side reads open or infinite, the problem is a burned out coil.  

Nate T. Contributor

Nate T.

Posted
Posted

Thirdly, you can read the spark plug wire with the same multimeter.  You're basically going to troubleshoot the system from the spark plug back up the system in order, once you verify for certain you have no spark.  

Bluegill Rookie

Bluegill

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Posted

Nate sir. I  relaced the coil with a new one so I  know it not that. I have checked for spark that way for many years. It may not be the best but it does work. I also replaced the ecu with a new one so i know the problem lies elsewhere.  Just trying to figure hete to start next.

Nate T. Contributor

Nate T.

Posted
Posted

Well then it could be the plug wire, fuse, wire issue, or crank/cam position sensor issue.  If you're not getting a position signal from the sensor, you won't get a spark

  

  • 1 year later...
Mclane88 Newbie

Mclane88

Posted
Posted

I know this is an old post however Chances are you have a bad stator. Pretty inexpensive part roughly 150$ and with moderate mechanical knowledge can change it yourself in 3-4 hours. 

  • 2 months later...
  • 3 months later...
Pjs toys Newbie

Pjs toys

Posted
Posted

Remove side panel on driver side, open main harness wire loom, inside you will find that there will be multiple wires corrosion, your looking for 2 purple wires going into 1… I have fixed 10 of them with the same issues 

  • 2 years later...
scottyking Newbie

scottyking

Posted
Posted
On 2/2/2022 at 12:55 PM, Pjs toys said:

Remove side panel on driver side, open main harness wire loom, inside you will find that there will be multiple wires corrosion, your looking for 2 purple wires going into 1… I have fixed 10 of them with the 

What side panel are you referring to? The engine case? That's the torque drive side.  Is the harness on the outside of the engine?

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