Re: Trying to bring a 1980s era TroyBilt Tiller back to lif

Bob - MI · Jun 24, 2020

There's no reason that a shorter plug would cause a no-start condition. I am assuming that you are looking for spark at that plug?

I am wondering if there's some kill switch arrangement that is preventing it from generating spark. Tecumseh engines can vary a bit in how they short the coil out and it could be tied to the throttle or there could be one of those key looking things like they have on snow-blower engines. Is there a key switch on the air box?

PNWdude · Jun 24, 2020

(quoted from post at 07:53:16 06/24/20) There's no reason that a shorter plug would cause a no-start condition. I am assuming that you are looking for spark at that plug?

I am wondering if there's some kill switch arrangement that is preventing it from generating spark. Tecumseh engines can vary a bit in how they short the coil out and it could be tied to the throttle or there could be one of those key looking things like they have on snow-blower engines. Is there a key switch on the air box?

Thanks for the response. I'm not sure if I'm looking at the right part, but under the bottom side of the throttle there is a little killswitch that when it it put in the stop position, it physically presses a small pin thingie outward (I would think interrupting the circuit) which is the way the manual says to turn the tiller off. The ground wire that goes to the ignition coil is attached to that whole assembly. If I move the throttle lever into and out of the stop position, it does appear to move that part back and forth. Is this what you're referring to? If so, any ideas on how I would go about diagnosing if this is the culprit? Maybe I should check and see if the connection is tight when it's out of the stop position. Hmm. That would be nice if it were a simple thing like that.

Re: Trying to bring a 1980s era TroyBilt Tiller back to lif

Bob - MI

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PNWdude

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