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New coil and still no spark on my GC 160 Honda tiller

I have a Sears tille?er with the 5.0 Honda GC160 motor, it had no spark so I cleaned everything and still nothing, I purchased and installed a new coil to factory specs, still no spark, it only has the wire to coil shut off switch not the oil one. What can it b

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  • Wade Capps
    Wade Capps Mar 26, 2014

    I set the coil to factory specs, I installed a new spark plug and set the gap to factory specs, I tested the new coil with a tester and the readings show that it is good, still no spark? The spark tester used is good I tried it on my power washer and it showed positive.

  • Wade Capps
    Wade Capps Mar 26, 2014

    The magnets on the flywheel are stronge, they will grab any metal that comes close including the coil base, both magnets. I disconnected the shut off wire before buying the new coil and after still nothing.Very frustrating.

  • cwradio73 Mar 26, 2014

    This is quite strange, unusual would be did you put flywheel back on correctly with key in place? Did you set gap on plug correctly, recheck your work an make sure that you are not grounding out somewhere. When you removed stop wire, take it from the coil side not off switch. This is very odd it seems that something is being overlooked. This covers about all there is to do. Start at flywheel I once saw a split key on crankshaft to flywheel that caused the same problem. I will think this over some more.

  • cwradio73 Mar 26, 2014

    Change out the plug with a working one just to be sure its possible from package it is bad as well.



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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.

Posted on Mar 26, 2014


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SOURCE: yard machine tiller won't stay started!

There is a small diaphram on the side of the carb that simply wears out. It's rubber coated mesh and the rubber coating breaks down and it stops pumping fuel into the carb. Sometimes you can run with the choke on partially, but it will burn 10 times the amount of fuel and cause more damage to the engine itself. I think it's about a $10.00 part.

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SOURCE: Honda mini tiller stalls

Sounds to me like your main fuel jet is clogged if it will idle (different fuel supply) but not run with open throttle. When you open the throttle the engine gets more air and not enough fuel and quits.

Solution: Open (disassemble) the carburator and spray carburator cleaner through every orifice. Make sure you actually get cleaner THROUGH all holes. You've no doubt got fuel "varnish" in the jets from letting the equipment sit idle for long periods.

Prevention is the key: Always use a fuel stabilizer (Stabil) in your fuel. Mix as described on teh package for the "long term storage" concentration — generally double the dose of "normal" concentration and you'll minimize future problems.

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SOURCE: fg 110 mini tiller by honda

I have had the same problem.
The first time the solution was to replace the rubber membrane underneath the primer bulb. Take off the bulb, then remove the plastic part underneath the bulb. There is a rubber membrane underneath that. The ethanol in the gasoline tends to deteriorate the membrane. The honda dealers sell them for about 14 dollars.

The second time the problem was caused by the gas cap, not properly venting. In this case the engine would start and run, but when I gave it full throttle, it would quit.
It got so bad that it wouldn't even run. I noticed when I loosened the gas cap it ran great.
So I took off the cap, removed the inner parts, and got a diaper in and pushed it though the holes in the plastic part underneath the cap, and through the rubber plug in the center. I did this a few times and check with my mouth to see if I could pull some air through the cap. When it breathed satisfactorily, I put the cap back on the gas tank and it ran great. Now it runs better than new.

Posted on Sep 11, 2011

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