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Old 06-09-2012, 09:59 PM   #1
Steve_Col OP
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Green Neutral light not showing - so won't Start?

Green Neutral light not showing - so won't Start?
GS100PD 1994
Grrrrrrr
Intermittent fault:
Happened twice a couple months ago; got going with no repetition so I did nothing


Happened again tonight :

Happens when I pull up and Before switching off. I know I just clicked her up to neutral , yet the green light does not show.

Later, I go to fire her up - no green light - no firing - no start.

I rocked forth and back - hit into gear and out a coupla / few times - messed about with the switches ... Randomly the light came on and I was away.

Late
Cold - Icy ;

Not Happy Irene.

Any suggestions?
(I have noticed the green light is slow to come on regularly ... as if there is 'lag' between hitting neutral and the sensor / machine mind catching on to that fact.)

(copied from 'Old Skool')
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Old 06-10-2012, 12:17 AM   #2
BEAMER89
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One of my bikes didnt have the neutral light, try holding the clutch in while giving the start button a blurp, should still start.
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Old 06-10-2012, 12:26 AM   #3
Box'a'bits
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The Neutral Switch sits at the low point of the gearbox. The switch can end up with sludge / water/ condensation around it, which will stop / slow it from functioning. Time for a gearbox oil change after a good fast run. Or to pull the switch out & replace it.

The bike has a lock out function to stop you starting it in gear. Just pull the clutch in to start it if the neutral light doesn't show.
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Old 06-10-2012, 06:31 AM   #4
SRanger331
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My wire came loose at the trans a few weeks ago. It was still in the hole, so sometimes it would make contact, sometimes not, which made the light act funny.
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Old 06-10-2012, 07:08 AM   #5
Ray of Sunshine
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There are two neutral lock out switches: the primary is in the bottom of the transmission housing, where it is a PITA to get to. The second is fight above the gear lever. It sometimes fails as well.

Usually, just pulling in the clutch lever will defeat these safety devices.
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Old 06-10-2012, 04:17 PM   #6
daveoneshot
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Get the wires off the neutral switch with long nose pliers, and jump them together with wire and alligator clips, or something fabricated. Turn on the key, if you get your green light it's the neutral switch gone bad. Don't be a moron like me and try to jump the wires with a test light. That won't work. Keeping the wires jumped will get you a green light all the time.
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Old 06-11-2012, 02:18 AM   #7
Padmei
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Quote:
Originally Posted by Ray of Sunshine View Post
There are two neutral lock out switches: the primary is in the bottom of the transmission housing, where it is a PITA to get to. The second is fight above the gear lever. It sometimes fails as well.
Huh???
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Old 06-11-2012, 05:13 AM   #8
patanga
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Quote:
Originally Posted by Padmei View Post
Huh???
I'll second that ???

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patanga screwed with this post 06-15-2012 at 08:00 PM
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Old 06-11-2012, 08:35 AM   #9
daveoneshot
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Maybe he means clutch lever.
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Old 06-11-2012, 08:56 AM   #10
Biebs
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Question 89 r100 gs

I have an 89 only starts in netural with the light on - will not start in gear with clutch lever pulled in. I thought this was a BMW by design feature. Are other's able to start their GS's in gear with clutch lever pulled in???? I may have a bad switch at the handlebar / clutch lever. Let hear from others.

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Old 06-11-2012, 09:05 AM   #11
Boon Booni
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Quote:
Originally Posted by Biebs View Post
I have an 89 only starts in netural with the light on - will not start in gear with clutch lever pulled in. I thought this was a BMW by design feature. Are other's able to start their GS's in gear with clutch lever pulled in???? I may have a bad switch at the handlebar / clutch lever. Let hear from others.

Switch might just need to be adjusted.
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Old 06-11-2012, 09:21 AM   #12
lkchris
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Yes, just pull in clutch lever and bike will start.
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Old 06-11-2012, 10:17 AM   #13
hardwaregrrl
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I had the safety switch on my ST. Couldn't start the bike in gear. No way! I jumped the clutch switch now I can start in any gear. I bet it's the neutral switch....the ONE and only under the trans
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Old 06-11-2012, 01:02 PM   #14
ericrat
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Quote:
Originally Posted by Biebs View Post
I have an 89 only starts in netural with the light on - will not start in gear with clutch lever pulled in. I thought this was a BMW by design feature. Are other's able to start their GS's in gear with clutch lever pulled in???? I may have a bad switch at the handlebar / clutch lever. Let hear from others.

Your clutch switch may not be working. I have a 78 so it is possible mine is different, but I don't think so. Also, I believe there is diode either in the headlight shell or near the starter relay too. I BELIEVE this keeps the clutch switch from back-feeding the neutral light or some-such, but will break the system if it goes bad.

In short, I think your problem is fixable and worth investigating. It is a bummer to stall at a light, or climbing up out of a creek bed and have to shift instead of just pressing the button and getting back going.

Eric
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