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cb 750 unusual misfire

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Nigellynch:
I have a restored cb 750 four k5 US import. I've installed electronic ignition and modern rectifier/regulator.
Everything is fine, except for an odd misfire. This happens only when I switch the indicator on, and is only a little hiccup while the indicator switch is between off , and on.
Any ideas?

SteveD CB500K0:
Does it happen EVERY time you switch the indicators on?


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Rob62:
I noticed when rebuilding my K4, that the contacts in the handlebar switches do come very close to the handlebars, so much that i decided to put a bit of insulating tape on the bars just to eliminate any contact.... I wonder if there is something contacting and shorting on yours? Maybe worth loosening and removing the switch gear from the bars (both sides) and then trying the indicator switch to see if you still have the missfire..... worth a try, only a 2 minute test to eliminate it.

Nigellynch:
not every time, when I think about it,

Nigellynch:
that's a good idea Rob62 , Ill try your advise but I still don't know how the indicators shorts the ignition?

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