Picture Attachments Fixed? (18 Feb 2023)
Hopefully, the pictures uploads are fixed for the time being. Let me know if you continue to have issues. I am looking into a more permanent solution. Thanks for your patience. - Makotosun
[Help] with my '73 DT3 250, having ignition issues
- RT325
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Replied by RT325 on topic [Help] with my '73 DT3 250, having ignition issues
So here's an idea to prove a point. Find the lowest voltage lighting coil wire & bridge it to the black up top as it goes to the plug coil, so it feeds back down to the condenser & points. Snip the source coil wire at the condenser seeing you need to try soldering again so no harm done. So then you'll have likely too much voltage but should spark good. I had a little 100cc running that way but was hard on the points & found lowest output lighting was best--or less hard on the points. So only for a testing try if you want too. Points set to 15 thou max. Flywheel tight or key will be damaged or will break. Hope for some good news.
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- MarkT
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Replied by MarkT on topic [Help] with my '73 DT3 250, having ignition issues
In video you can hear each "thwup" as piston passes through TDC... when you're spinning it slow, guessing you're at 100 RPM or less from the frequency of the noise pulse. Just might not be spinning fast enough.
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- RT325
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Replied by RT325 on topic [Help] with my '73 DT3 250, having ignition issues
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Replied by RT325 on topic [Help] with my '73 DT3 250, having ignition issues
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- MarkT
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Replied by MarkT on topic [Help] with my '73 DT3 250, having ignition issues
Easiest test in the world is to just give it a few kicks with the kicker and I'm guessing if plug shell stays grounded you'll get a nice spark.
Or you can worry about it and try to fix something that might not even be broken.
My guess is the original stator coil probably was fine... it's not that common for them to go bad unless physically damaged... for example by someone using a jaw puller... and when they do they are usually completely open or shorted.
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- 19stuberd
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Replied by 19stuberd on topic [Help] with my '73 DT3 250, having ignition issues
P.S. That soldering job was done by the shop, if I had done that myself I don't think I could have brought myself to post it on here.
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- 19stuberd
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Replied by 19stuberd on topic [Help] with my '73 DT3 250, having ignition issues
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- RT325
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Replied by RT325 on topic [Help] with my '73 DT3 250, having ignition issues
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Replied by RT325 on topic [Help] with my '73 DT3 250, having ignition issues
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- 19stuberd
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Replied by 19stuberd on topic [Help] with my '73 DT3 250, having ignition issues
Also to Mr. 350, are you saying that I should not do the coil mod? If you think I should still do it, which coil is the less output one and which wire should I connect to the black one?
Thanks again for everybody's help, it really does mean the world to me.
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