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by djohns
Wed Jun 18, 2025 11:28 am
Forum: Brakes | Exhaust | Suspension | Maintenance
Topic: Felt dust seals
Replies: 0
Views: 57

Felt dust seals

When restoring my CA95, Dream and Superhawk I found the felt dust seals on the suspension have deteriorated to the point they fall apart. Not sure if they were originally wool or polyester. Being that new ones are scarce I made new ones from polyester felt. Went to Hobby Lobby and found a 12”x12” pi...
by djohns
Fri Mar 08, 2024 12:35 pm
Forum: Ignition - Mechanical | Electronic
Topic: CB77 - No return to low throttle ?
Replies: 2
Views: 7610

CB77 - No return to low throttle ?

On the subject of advance problems. My CB77 sometimes fails to return to low throttle during shifting, scary in traffic! Starts on first button push and idles well. After warming up if given throttle it sometimes continues to rev ( tach out for repair) high. Turning the key off and immediately resta...
by djohns
Sat Feb 24, 2024 3:55 pm
Forum: Carburation - Fuel
Topic: Broken Float Tang
Replies: 3
Views: 134677

Re: Broken Float Tang

I had the same problem. Bike sat for years and the pewter corroded around brass pin. I clamped body in drill press and drilled small hole down onto the “pillar” same for the broken piece. Be careful as the pewter grabs. Wouldn’t dare try it with a hand held drill motor. Make it big enough dia. To be...
by djohns
Wed Feb 21, 2024 9:52 pm
Forum: Electrical - Wiring
Topic: Half wave rectifier
Replies: 10
Views: 18121

Re: Half wave rectifier

Last night I had a nightmare where my high school physics teacher was beating me over the head with a bar magnet. He kept saying North South over and over. The magnet broke before my skull, yet he still kept repeating North South. That’s when I had an epiphany, the coil can’t be half wave. As north ...
by djohns
Sat Feb 17, 2024 2:24 pm
Forum: Electrical - Wiring
Topic: Half wave rectifier
Replies: 10
Views: 18121

Re: Half wave rectifier

Thank you, I have the same manual saved in my cloud. Ain’t the internet great! You are right, the graphs are there but lacking in description of the lighting coil type. I think I have it figured out, just waiting on my oscilloscope to verify. I will post results later. Thank you all for the help.
by djohns
Fri Feb 16, 2024 11:04 pm
Forum: Electrical - Wiring
Topic: Half wave rectifier
Replies: 10
Views: 18121

Re: Half wave rectifier

If you have time look at a YouTube video by Antilaakeri “6 coil stator full wave conversion-single phase charging”. This is like the S65, and other small bikes system only with one coil instead of the array of six. Note coils to ground in diagram with shunt +- midway. Diagram after conversion shows ...
by djohns
Fri Feb 16, 2024 12:17 pm
Forum: Electrical - Wiring
Topic: Half wave rectifier
Replies: 10
Views: 18121

Re: Half wave rectifier

Yes Tim, that is the correct schematic for mine except for the winkers that we weren’t required to have here in ‘65. Under the flywheel there are two coils, the one on the right is the primary supplying power to the ignition coil ( no batt required to run). The coil on the left is the “lighting coil...