cranks but no spark at coil

Thanks KC. Amazing how expensive heat shrink connectors are!
There is actually a total of 6 red wires. 2 bottom ones (need replacing) and 4 in the top. Im thinking of one of these. Got this pic from Mad Electrical website.
Looks sturdy and simple. Any experience with these?
Thanks for chiming in.
Something like a #8 gauge insulated butt connector should work. It is not easy to guess gauge in photo. Heat Shrink Butt Connector Red 8 Gauge - Bt-8hs - Heat Shrink Butt Connectors - Butt Connectors
If you need #6 Ace 6 AWG Insulated Butt Connector - Wire Clips & Connectors - Ace Hardware
You will also need decent large crimp tool.
I would cut back the crap soldered ends, clean copper with clean 3m green pad, crimp lower 2 in one end, the upper 3 in other. Slip additional heat sink first, use it as secondary insulation and seal.

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