Author Topic: Dash Lights  (Read 636 times)

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Offline dubepj

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Dash Lights
« on: July 25, 2024, 03:10:14 pm »
Got the old girl running.  Seems to have lots of power and runs Pretty good. 
One issue is when I shift to Low the neutral light stays on and the Low light does not come on.  ( bulb is good)  When is shift to Drive the neutral light goes out and the Drive light come on as it should.
Where do I start looking.
Not sure gas gauge works accurately but  that's about my biggest problems so far.
More concerned about the dash lights.

Offline CycleRanger

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Re: Dash Lights
« Reply #1 on: July 25, 2024, 04:01:40 pm »
Not an A expert but the neutral switch might be stuck from sitting.
Check out the wiring diagram. I suspect the low light won't come on unless it sees the neutral switch off.
Do you have a copy of the Honda Shop Manual or Parts List for your bike? Get one here:
https://www.honda4fun.com/materiale/documentazione-tecnica
CB750K5        '79 XL250s     CL350K3
CB750K3        '76 XS650      '76 CJ360T

Offline dubepj

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Re: Dash Lights
« Reply #2 on: July 26, 2024, 08:16:21 am »
I agree that the neutral switch might be stuck from sitting.  How hard is it to access the switch.  Shop manual doesn't really go into detail.

Offline CycleRanger

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Re: Dash Lights
« Reply #3 on: July 26, 2024, 09:07:45 am »
I don't know if the A has a neutral switch in the same location as the other bikes. (under the engine)
There is also a "Change Switch" PN 35752-393-003 located near the shifter.
I assume this is for the hi/lo indicator.
I would examine the wiring diagram and the parts list for clues.
Do you have a copy of the Honda Shop Manual or Parts List for your bike? Get one here:
https://www.honda4fun.com/materiale/documentazione-tecnica
CB750K5        '79 XL250s     CL350K3
CB750K3        '76 XS650      '76 CJ360T

Offline dubepj

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Re: Dash Lights
« Reply #4 on: July 28, 2024, 06:59:05 am »
For me access the Neutral switch I think I have to remove side cover on left side.  Also have to drain oil I'm guessing.  Too bad, just changed it.  Please tell me If I do this if I'll find that neutral switch??

Offline CycleRanger

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Re: Dash Lights
« Reply #5 on: July 28, 2024, 09:36:25 am »
Don't know.
Do you have the shop manual?
http://manuals.sohc4.net/cb750a/
Looks like the neutral light goes through the "changing relay" where ever that is located.
Do you have a copy of the Honda Shop Manual or Parts List for your bike? Get one here:
https://www.honda4fun.com/materiale/documentazione-tecnica
CB750K5        '79 XL250s     CL350K3
CB750K3        '76 XS650      '76 CJ360T