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Hi Richard and welcome to JustAnswer,Thank you for the question and your patience. Should you still need assistance for information purposes only...Initially, would the described symptom of "...no start on power..." be that the Honda would not crank? If yes, then proposed preliminary tries (if have not been done):
Expect a big spark;
If it does not crank, then possibly a cable and/or terminal issue;
if it does crank, then ensure that its green/red wire has a good ground connection while in neutral or the clutch lever pulled in;
and that its yellow/red wire gets a +12V when pressing on the starter button;
if there is good ground and IGN+12, then there should be a click from the relay;
no click, ground or IGN+12 missing or relay faulty;
there is a click but starter motor would not spin, then relay would be suspect;
no IGN+12, then check the wiring, connectors and switches;
no good ground connection on the green/red wire, consider test hardwiring a second ground line;
Actual wire colors may vary depending on versions / mods.
Yes to the phone call request Richard but bear with me and let's work out the basic information prior to the call
Offhand, on a 'no-spark' issue and the above additional information: