Author Topic: Hit & Miss Engine - Help Needed  (Read 825 times)

Offline Jim

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Hit & Miss Engine - Help Needed
« on: July 25, 2023, 04:46:31 AM »
G'day all, I have taken more than a few days to build the base for this Enjomor 6cc Hit & Miss Engine. Really happy how it turned out.
I can't get a spark from the plug. Has anyone got any thoughts on what to check out to see why I'm not getting a spark? I've pointed out in the video a few things where I'm stuck.

<a href="https://www.youtube.com/watch?v=dYivwV477vg" target="_blank">http://www.youtube.com/watch?v=dYivwV477vg</a>
Kind regards,

Jim

Offline Jasonb

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Re: Hit & Miss Engine - Help Needed
« Reply #1 on: July 25, 2023, 07:12:25 AM »
looks like connections to the switch could be shorting to other parts of the engine or themselves

Their ignitions are built for Hall sensors that have 3 wires but the contact type switch only required two of those so red signal is not connected
« Last Edit: July 25, 2023, 07:17:01 AM by Jasonb »

Offline Jim

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Re: Hit & Miss Engine - Help Needed
« Reply #2 on: July 25, 2023, 07:20:05 AM »
looks like connections to the switch could be shorting to other parts of the engine or themselves

Their ignitions are built for Hall sensors that have 3 wires but the contact type switch only required two of those so red signal is not connected

Thanks Jason appreciated. That red wire not being connected had me worried. Now that I know that, at least I can rule that out.

I've checked a fair things, checked for as much connectivity with a multimeter as my knowledge will allow....just can't find why its dead as a door nail.
Kind regards,

Jim

Offline Zephyrin

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Re: Hit & Miss Engine - Help Needed
« Reply #3 on: July 25, 2023, 03:01:21 PM »
 two different systems exist for these electronic ignition modules... one with 2 wires connection to a reed switch or a plain switch, and another more common with three wires for an Hall effect magnetic sensor.
you may check for the presence of a hall sensor with 3 wires in front of a magnet somewhere in a rotating part (on the cameshaft usually).
this setup is sensitive to magnetic field, therefore, test it without the magnet added for the oil tray !

but I suspect you have the first model with a plain switch of the relay type visible on your model..hence only 2 wires are required. but it is not easy to see that on your video.
the point is that these modules are very prone to fail, the module is probably fried, you have to ask for a replacement !


Offline Jim

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Re: Hit & Miss Engine - Help Needed
« Reply #4 on: July 26, 2023, 12:23:21 AM »
Thanks for the comment Zephyrin much appreciated.
This engine doesn't have the Hall sensor, just a the contact switch (which is different from my other ones with the Hall sensor).

Is there some easy way to test to confirm that the module is dead?
Kind regards,

Jim

Offline Jasonb

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