Author Topic: Hit & Miss Engine - Help Needed  (Read 2905 times)

Offline Jim Dobson

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Hit & Miss Engine - Help Needed
« on: July 24, 2023, 11:46:10 PM »
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.


Offline SwarfnStuff

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Re: Hit & Miss Engine - Help Needed
« Reply #1 on: July 25, 2023, 02:36:48 AM »
Looks Good Jim,
      My first thought is check the reed switch wires. You say three but only two are  used so can you check the two connected wires actually make a circuit when the contacts close then no circuit when they break? Or reversed?
First place I would check anyway.
Good luck trouble shooting the problem and other more knowledgeable that I will chip in with more help I'm sure.
John B
Converting good metal into swarf sometimes ending up with something useful. ;-)

Offline Jim Dobson

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Re: Hit & Miss Engine - Help Needed
« Reply #2 on: July 25, 2023, 03:21:43 AM »
Thanks John appreciated mate. I will try that.

Hopefully the process of elimination eventually gets it running.

Have a great evening and thanks again.

Offline tom osselton

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Re: Hit & Miss Engine - Help Needed
« Reply #3 on: July 25, 2023, 04:20:05 PM »
Iíve no idea but to follow the power and see where it stops, although it would be a hoot if it was the on / off badge needs flipped 180*. 


Probably the best person to talk to would be Doc heís done a few of those and heís a forum member too.

Offline Jim Dobson

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Re: Hit & Miss Engine - Help Needed
« Reply #4 on: July 25, 2023, 07:24:57 PM »
Iíve no idea but to follow the power and see where it stops, although it would be a hoot if it was the on / off badge needs flipped 180*. 


Probably the best person to talk to would be Doc heís done a few of those and heís a forum member too.

G'day Tom, I've checked the on off switch :)

Thanks for the reply, appreciated.

Offline BillTodd

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Re: Hit & Miss Engine - Help Needed
« Reply #5 on: July 26, 2023, 10:34:43 AM »
The wires on the tail end of the contact breaker seem very close to the metal guide . Might be worth checking.

Do you get a spark with the electrics off of the engine?

BTW the base looks fabulous 😁
Bill

Offline Jim Dobson

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Re: Hit & Miss Engine - Help Needed
« Reply #6 on: July 26, 2023, 07:33:06 PM »
The wires on the tail end of the contact breaker seem very close to the metal guide . Might be worth checking.

Do you get a spark with the electrics off of the engine?

BTW the base looks fabulous 😁

Thanks Bill appreciated, how do I test to get a spark off the engine?

Offline BillTodd

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Re: Hit & Miss Engine - Help Needed
« Reply #7 on: July 27, 2023, 09:01:52 AM »
To test spark  , just put a short wire into the plug cap and space it a couple of millimetres from the ground (black) wire.

or stick your finger there - if it hurts like ##!# it's probably working ;⁠-⁠)
Bill

Offline tom osselton

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Re: Hit & Miss Engine - Help Needed
« Reply #8 on: July 27, 2023, 04:41:34 PM »
Thatís the first thing I did working on the BSAís and Triumphs was to put a screwdriver into the boot and tell them to kick it over if itís a constant shock add a new condenser! Lol
Are you sure the ground is good and the contacts are isolated?

Offline Jim Dobson

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Re: Hit & Miss Engine - Help Needed
« Reply #9 on: July 27, 2023, 07:51:07 PM »
:) thanks Tom & Bill