I have a Troy-Bilt Horse tiller I from 1975 left to me from my father-in-law. It has an HM80 on it. Whenever I wanted to shut it off, I would throttle it down and it would die out. Just cleaned and rebuilt the carb. Now when I throttle down it just idles slowly. I'm having to choke it out to get it to shut off. Can I just keep doing this? Is there a better way other than installing a kill switch? Idle restrictor screw is all the way in. Same place it was before I cleaned it. Does not have a high-speed adjustment.
I don't believe so. I will check next time I'm at that property. I removed the battery after it died and took the bracket off along with the battery cables. Have just been pull starting it. FIL passed in 2003 and all I can ever remember is shutting it off by decreasing the throttle. He always used the battery start. Not sure if any of that makes a difference to the current situation. However, will choking it out do damage? Even if it doesn't that's a temporary fix and will still be interested in making it correct. Appreciate the help so far.
#6
shurguywutt
I don't think choking it to death will hurt it in the short term. It just floods the engine.
For a more permanent fix, I would make a kill switch with two wires and a cheap toggle switch from the autoparts store. Just hook one wire to ground and the other to the coil contact (not the cable that goes to the plug lol). You can mount the switch or just zip tie it to a safe spot. Did this to my honda mower.
He needs to find a kill wire coming from under the shroud before he can add a kill switch. Being a battery start engine I may be on the other side. Once he finds the wire, I’ll bet he finds a kill switch.
OK, here's what I have:
1. Coil with green wire coming out going into the black wire protector along with a red wire
2. The green and red wire
3. G and R wires into a connector. Red wire out to solenoid
4. R wire connects to right side of solenoid
Green wire out of right side of solenoid and Green/Yellow wire in front both go up the handle to the starting button in the handle.
As a side note, what is the connector that has the red and yellow wires in the first picture?
The green wire coming off the coil is the kill wire. Trace that wire and you should find a shutoff switch. That connection is probably part of the charging circuit.
The Green wire goes from the coil to the connector in the third picture. It either dead ends there or goes on to the right side of the solenoid as a red wire. If it dead ends, do I need to run a wire from it to a switch to the frame? Do I need to ground the green wire out of the coil to kill the spark?
So I installed a kill switch and it works like it should. Might not be the prettiest set up but it does the trick. Thank you so much for helping me out.
Something neat about this project. My wife and I are foster parents. We just had a 16 year old move in with us recently. He is interested in motors and engines but doesn't know much nor has had much stable guidance. We were able to learn about this together and work on it together. It was a good experience and will be good for him in the long run. Thank you for your support with this.
