Question about Mantis 2-Cycle Tiller

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

Is there away to test coil ? have remove wir from kill switch still no spark

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  • Anonymous Mar 31, 2014

    started up after being stored in a warm room all winter, but won't stop unless I remove the spark wire

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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.

Posted on Mar 21, 2009

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Posted on Jan 02, 2017

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1 Answer

Why is my 97 Honda 4 wheeler not getting fire


There are three items that are connected together needed to create spark on your 1997 Honda 4-wheeler, regardless of which model it is.
Before we go through a checklist of these three important parts, look for a black wire with a white stripe that runs to the ignition switch and kill button from the CDI box. Disconnect this wire before it gets to the ignition switch and kill button, then check for spark. The most likely cause is a broken kill switch on the handlebar, or shorted ignition switch. Such a condition grounds this wire and kills the spark.
If this test did not restore the spark, continue reading...
Here is what is required to create a spark.

First, the alternator has one coil which generates a high voltage--about 125 Volts AC for the CDI ignitor box.

Second, there is a pulse voltage generated once every revolution of the engine that goes to the CDI box. This pulse causes the CDI to dump its stored energy from the 125 volt line into the primary of the ignition coil.

Third, If the two connections of the wire that runs from the CDI to the Coil are BOTH SHINY clean, the ignition coil will generate a spark.

If any one of these 3 don't happen, the spark will go away. Of these three, item 3 -- one or two tarnished and/or dirty connectors -- is the most likely cause. Just an added resistance of 0.3 Ohms or more in the CDI to Coil connections will cause the ignition to fail. No other wires have to be this clean.

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the things i would check are the pickup coil, the ignition coil, cdi box, the ignition switch and the kill switch. I just purchased a 4 wheeler that they changed everything electrical on it. come to find out the kill switch was melted onto the muffler causing it to be always activated. if you get a repair manual or look hard on the internet you can get the proper readings to ohm test your pickup coil, ignition coil and cdi box. the ignition switch can be tested with a test light and the kill switch should not be grounded unless activated. (hook a test light up to the positive side of the battery and then touch the kill switch wire. if it lights up there when not in the kill position you have a problem)

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While attending college, I worked at a tool rental center and learned many tips and tricks from the mechanics. The problem that we heard the most from customers was that the machine would not start. Your your machine at least starts and runs fine, however will not shut down with the factory kill switch. Many times when replacing the mag. (spark coil) the kill wire would rub against the flywheel and break or over time the conductor wire will break inside the insulation. If you kill switch only has one wire, then all the kill switch does is short the mag to ground. Simple test is to remove spark plug, re-connect wire to plug, touch plug to engine and pull rope to observe spark, then short the tab on the magnito to ground, should be no spark. If you still have spark, coil is defective however good enough to run engine. Kill with choke or pull wire. If no spark with test, make new wire from tab of coil to kill switch or any switch that will short tab to ground. Good Luck

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