Author Topic: CB750 K1 Neutral light comes on in third and forth gear  (Read 1380 times)

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Offline mycb750k6

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CB750 K1 Neutral light comes on in third and forth gear
« on: August 13, 2011, 11:56:51 AM »
My CB750 K1 neutral light will come on and off intermittently while riding. Something loose?



Offline CycleRanger

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Re: CB750 K1 Neutral light comes on in third and forth gear
« Reply #3 on: August 14, 2011, 03:49:00 PM »
Well, my first thought would be to check the switch and the wiring.
Do you have a copy of the Honda Shop Manual or Parts List for your bike? Get one here:
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CB750K5        '79 XL250s     CL350K3
CB750K3        '76 XS650      '76 CJ360T

Offline Spanner 1

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Re: CB750 K1 Neutral light comes on in third and forth gear
« Reply #4 on: August 14, 2011, 07:02:06 PM »
Sorry, can't answer until you tell me which K1 were talking about ? #1,2,3,4   :D :o
Loose 'fork' connector at the N switch on the underside of the lower casing... hey, you know where it is , you have 4 K1's !!!.... and the wire is touching ground (= bulb lights )....... or the switch has loosened a few turns in the casing........
« Last Edit: August 14, 2011, 07:04:01 PM by Spanner 1 »
If your sure it's a carb problem; it's ignition,
If your sure it's an ignition problem; it's carbs....

bollingball

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Re: CB750 K1 Neutral light comes on in third and forth gear
« Reply #5 on: August 14, 2011, 07:13:55 PM »
Have you looked at the sw.? How does the wire connector look is it loose or touching something it should not? Do you have the safety circuit on your bike?

Offline mycb750k6

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Re: CB750 K1 Neutral light comes on in third and forth gear
« Reply #6 on: August 15, 2011, 05:33:17 AM »
Got it thanks!  :) Looked there first but the screw was tight and I gave up.  And it was K1-4  ::)  My current project.  I pulled the entire switch and replaced it. Definitely need a new O-ring to keep it from dripping!

Offline Johnie

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Re: CB750 K1 Neutral light comes on in third and forth gear
« Reply #7 on: August 15, 2011, 06:49:18 AM »
I also used just a small tad of anerobic sealer on that O ring. No leaks...
1970 CB750K0 - Candy Ruby Red
1973 CB750K3 - Candy Bacchus Olive or Sunflake Orange
1970 Chevy Chevelle SS396 - Cortez Silver
1976 GL1000 Sulphur Yellow

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