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Author Topic: 1975 Honda cb 750/ starting  (Read 646 times)

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Offline CamCb750

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1975 Honda cb 750/ starting
« on: May 21, 2022, 04:36:32 AM »
Good day

Full of fuel
Charged battery
Fuel on choke open
Turned over (ran) for 2-3 seconds then stopped
Wouldn’t turn over after that
Turned over fine a week ago
Currently charging battery
Any ideas ?

Thanks is advanced
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Offline newday777

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Re: 1975 Honda cb 750/ starting
« Reply #1 on: May 21, 2022, 05:14:24 AM »
Quote from: CamCb750 on May 21, 2022, 04:36:32 AM
Good day

Full of fuel
Charged battery
Fuel on choke open
Turned over (ran) for 2-3 seconds then stopped
Wouldn’t turn over after that
Turned over fine a week ago
Currently charging battery
Any ideas ?

Thanks is advanced
Good morning CamCb750
Questions to your wording
You say
It "Turned over (ran) for 2-3 seconds then stopped
Wouldn’t turn over after that
Turned over fine a week ago"
I think you are saying it ran a week ago?? As in you've had it running properly in the past and this is a new problem that it spins over and doesn't fire now?
Or is it locked up and starteror kick won't spin over the motor?
What is the bike's history with you?

Possibilities of not firing if spinning over....
Kill switch  bad/broken wire in switch assembly would keep from getting spark(you didn't mention no spark or yes you have spark)
Plugged carbs no gas in bowls?

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Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 1 K2, 4 K6, 1 K8, 1 F1, 1 F3
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A

Offline Scootch

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Re: 1975 Honda cb 750/ starting
« Reply #2 on: May 21, 2022, 09:51:42 AM »
Do any indicator lights come on when you turn ignition on ie neutral light, oil pressure light etc? If no maybe fuse blown. Maybe problem with ignition switch. If lights come on check kill switch.
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