Sounds good, Do these bikes have any safety switches? Kickstand switch, clutch switch, oil pressure switch or brake switches that might cut spark if not working?No cranking needed, R/W should be hot all the time with key on. Yes a good battery is required to produce spark
Im currently trying to get spark on it, i've replaced the pickup coils + rotor and the ignitor unit. What else is needed for spark? All 3 plugs have no spark so im thinking its not the ignition coils
If theres anywhere else to post this lmk i havent found any other forums yet
The switch is broken which is why ive bypassed it for now, But shorting the solenoid will crank the starter no problem
That same switch controls the red/white wire that powers the starter solenoid and the ignition coils (the start button only grounds the blue/white to the solenoid) are you sure you've got it bypassed properly?
I have the R/W connected the only other wire there that i seen coming from the switch was L/WThere will be two wires: most early '80's Yamahas it was R/W in and out - just connect the two. On earlier bikes it was brown in, R/W out - same connection between the two
View attachment 242992