Bad neutral switch


Information and questions on GL1000 Goldwings (1975-1979)
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pshaginaw
Posts: 33
Joined: Mon Jul 20, 2009 3:53 pm
Location: Waynesville, NC
Motorcycle: 1978 Honda GL1000
1987 Yamaha Virago XV535T
1975 Honda CB360T
1999 Honda Valkryrie
2005 Suzuki Boulevard S40

Bad neutral switch

Postby pshaginaw » Fri Mar 15, 2013 12:45 pm



I read the previous posts on this forum, and determined that I had a bad diode, as the neutral light glowed in every gear. I did the test where when the clutch was pulled in, the light still glowed. I tested the diode and found it had continuity in both directions, so it was replaced. The new diode was installed, the bike started fine, and the neutral light only lit up in neutral! After riding about 10 miles, the neutral light came on again, and I thought the new diode had failed! Back at my garage, I disconnected the wire from the neutral switch, and the light went out, indicating a bad switch. I could'nt get my multimeter probes to indicate any continuity on neutral only, so I re-installed the switch wire. By now, the bike had cooled off. On re-start, the neutral light again only was on in neutral, but came on again when the bike heated up enough to have the fan come on. Looks like I am having trouble with a heat-sensetive switch! Would giving the switch a good cleaning help? I have run the bike about 200 mi with a SeaFoam treatment, but have not yet chainged the oil. Anyone else ever have this happen? Should I just replace the switch?



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flash2002
Posts: 178
Joined: Mon Aug 30, 2010 6:38 pm
Location: Montreal, Canada
Motorcycle: gold wing 1800
2003

Re: Bad neutral switch

Postby flash2002 » Fri Mar 15, 2013 5:51 pm

Hi, There was talk about adding power to the switch, in other words adding 12volts plus side to the switch to make a short and burn the dirt off the switch. Now wait and see if others will comment to make shure I'm right.

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virgilmobile
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Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: Bad neutral switch

Postby virgilmobile » Fri Mar 15, 2013 10:09 pm

The switch is contaminated with oil sludge residue(carbon).
I usually recommend just removing it,clean it,put it back on with a new "O" ring.
I suppose a pop of 12 volts on the terminal with the bike in neutral would burn off the bit of carbon that's making the light stay on dim but it probably won't last very long(a few months).
.More junk will just fill the burnt spot again.

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Placerville
Posts: 423
Joined: Tue Mar 09, 2010 12:58 pm
Location: Placerville, CA
Motorcycle: 1976 Naked Yellow

Re: Bad neutral switch

Postby Placerville » Sat Mar 16, 2013 7:06 pm

Agree with virgilmobile, the 'burn' technique works from time to time, but will not last. Swapping out or cleaning the neutral switch is not easy, but it's the only way to ensure that the job gets done right. Are you a member of the NGW? If so, go here and under "Lights/Switches/Instruments/Wiring" you'll see three different threads that will cover everything you'll need to do the job including the disassembly and cleaning of the switch. If you'd rather buy a new switch, they're still available from Honda
Placerville- 1976 Yellow
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pshaginaw
Posts: 33
Joined: Mon Jul 20, 2009 3:53 pm
Location: Waynesville, NC
Motorcycle: 1978 Honda GL1000
1987 Yamaha Virago XV535T
1975 Honda CB360T
1999 Honda Valkryrie
2005 Suzuki Boulevard S40

Re: Bad neutral switch

Postby pshaginaw » Mon Mar 18, 2013 10:30 am

Thanx for all the advice. I took a look at all the threads on this forum and also on Naked Goldwings. The consensus seems to be 'replace the switch'. Since I'm giving the engine a good SeaFoam scrubbing, I'll be changing the oil and filter in another 300 miles or so, and that looks like the best time to replace the switch.




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