Question about Mantis 2-Cycle Tiller

2 Answers

What is left to do but change the flywheel?

2cycle mantis tiller has no spark i have changed the spark plug and the coil and still no spark, switch is new also.i have cleaned up all the contacts on the engine and the coil and the flywheel.

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  • Renrut1211 May 19, 2009

    engine will not fire. I have replaced the coil, cleaned all contact points on the flywheel, cleaned all the rust where the coil is attached. I think I can barely feel it fire when I put my finger on the spark plug, but it is so weak that I'm not sure if it's firing or just vibration from turning the engine over.

  • Anonymous Mar 26, 2014

    We have replaced the coil and spark plug and cannot start. Upper portion of engine was cleaned.

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Is the air gap measured on mm or inches?

Posted on Dec 04, 2015

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  • 284 Answers

Check what they call air gap between the coil and flywheel .010-.012 gap
also be sure your flywheel is in time.
you will actually have to remove it to do this and check for the sheared key or be sure the key way aligns with the crankshaft keyway on the flywheel

Posted on May 26, 2009

  • Joe Saubolle
    Joe Saubolle Dec 04, 2015

    Is the air gap measured 8n inches or millimeters?

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Did you check the gap between the magnet on the flywheel an mag? Unplug the stop wire an see how that works. Sometimes the switch is bad. Are the magnets on the flywheel, did you set the gap on the flywheel to mag correctly? Did you do the simple thing an change the plug they go bad more than anything else.

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My mantis tiller 2cycle: Iput new spark plug the on&off switch ok just not getting a spark to the plug. Think its the coil ?


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I Have a Mantis tiller that I can get NO spark


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Jun 07, 2009 | Mantis 2-Cycle Tiller

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Mantis tiller sv-4 echo engine no spark from coil mantis 2cycle tiller i got it running tryed to start it 4hrs latter same old problem wont start, plug wet with gas wont start. coil was checked by shop...


Sounds like it's flooding either from over choking or the inlet needle in the carb is leaking. Have you removed the plug and blown out the cylinder and plug with air and then tried to restart? Be careful not to keep cranking with the choke pulled out. When it 'hits' ONE time, move the choke halfway in and crank again

May 31, 2009 | Mantis 2-Cycle Tiller

2 Answers

No spark


No spark can be several things but begin with the easiest first.
  1. Ensure the grounding wire (thin black wire) that connects to the coil is not grounded.
  2. Ensure sure the plug wire end is connected well to the plug wire, some of these clamp the wire interior cord to the metal wire end by wrapping and crimping around the plug wire.
  3. Make sure the ignition generator coil is not scrubbing against the flywheel, there should be .030 air gap between the coil and the flywheel magnets.
  4. If you are mechanically savy, remove the flywheel and inspect the breaker points, replace/adjust as needed.

May 26, 2009 | Mantis 2-Cycle Tiller

1 Answer

Mantis tiller sv-4 echo engine: no spark from coil


There are only 4 parts to the 2-stroke Mantis ignition system: the spark plug, the "kill button", the flywheel with embedded magnets, and the coil with integral plug wire. There are no "points" to clean or refurbish. If you've tried a new spark plug, unplugged the wire leading up the handlebars, and the magnets on the side of the flywheel are strong enough to attract a screw driver blade, then it must be a bad coil. That's all it could be. End of story.

Cruising the internet I see where these Echo coils go bad all the time. You can order the coil, but if the machine hasn't run in several years the carb will also need cleaning. So one thing leads to another. The gear box grease also needs replacing each year. What I'm trying to tell you is these are disposable tillers and due to length of time, incomplete care/ storage, ....whatever, this one's time is up.

Sorry.

Feb 26, 2009 | Mantis 2-Cycle Tiller

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