Electrical supply to ignition

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lazyeye6

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My '74 Commando has a Mikuni carb, TriSpark ignition, dual lead coil and a cNw electric starter. I have a lithium iron battery holding 13.4v.
It has ALWAYS started IMMEDIATELY on the button for over 3 years. So, just recently
I removed and threw away the one-way anti-sump valve from the oil supply line.
I replaced it with a manual valve with an ignition disconnect system. I verified
continuity and resistance. It has wire leads which appear to be about 24 ga wire.
I used butt splices and 18 ga wire to extend to points of connection near the headstock.
Nothing else changed. Now when I hit the starter button the engine hesitates starting.
I might have to hold down the button for 3-4 seconds before the engine starts and
then it might die and I have to repeat the process another time or two before it
stays lit up. My question is: Is it possible that I'm not getting enough smoke through
the skimpy 24 ga wires while cranking the starter motor to feed what the TriSpark needs?
 
My '74 Commando has a Mikuni carb, TriSpark ignition, dual lead coil and a cNw electric starter. I have a lithium iron battery holding 13.4v.
It has ALWAYS started IMMEDIATELY on the button for over 3 years. So, just recently
I removed and threw away the one-way anti-sump valve from the oil supply line.
I replaced it with a manual valve with an ignition disconnect system. I verified
continuity and resistance. It has wire leads which appear to be about 24 ga wire.
I used butt splices and 18 ga wire to extend to points of connection near the headstock.
Nothing else changed. Now when I hit the starter button the engine hesitates starting.
I might have to hold down the button for 3-4 seconds before the engine starts and
then it might die and I have to repeat the process another time or two before it
stays lit up. My question is: Is it possible that I'm not getting enough smoke through
the skimpy 24 ga wires while cranking the starter motor to feed what the TriSpark needs?

Absolutely. I would not feed ignition with anything smaller than 16 gage wire, 18 if you must. If the switch is feeding the coil you need at least 3 amps. If you're only switching the TriSpark's power wire, then that's about 1 amp and should still be a 20 gage or bigger.

24 gage is good for nothing other than feeding an LED indicator lamp.
 
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