« Reply #25 on: June 05, 2019, 10:17:29 AM »
O.K. The 1 and 4 coil is triggered by the Blue wire from the left hand point set. If you plugged that Blue wire into the Yellow wire to the 2-3 coil and you got spark on 2-3 then the 2-3 points are not operating. Very first thing would be to shine up the 2-3 ( right hand ) points . A points file is best, but who has one of them anymore ! 400 grit paper folded over and worked on the point faces is next best thing. When they are shiny, pass a white business card ( best if soaked in carb cleaner ) thru' the points to remove any grit left by the sandpaper. Start bike. If still no running on 2-3 then it's time to set the points gap on 2-3 as the points may not be opening.
I know for certain that O'Reilly Auto still sells points files.
Logged
"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln
Current: '76 CB750F. Previous: '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200
