Bandit SAK9 Neutral problem

bgfs · Two Stroke Sniffer Joined: 16 Dec 2009 Karma :

I have a Suzuki 2009 GSF650 SAK9 which has done 14,000 miles. I have a problem when selecting neutral. The bike goes into neutral (proven by letting the clutch out), but the neutral indicator doesn't come on. I have to try a number of times and sometimes a slight downward pressure (not enough to take it out of neutral) get the neutral light on. This is the second time this has happened. The first time the dealer repaired it but didn't explain what was wrong. Anyone got any ideas whats wrong and how to fix it?
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BGFS

Dazbo666 · World Chat Champion Joined: 06 Jun 2004 Karma :

Dodgy bulb ?
Loose connection(s) ?
Phunked sensor / switch ?
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1st bike (Sept'06 - May'10) : 1991 GPZ500S / Current bike (since Nov 2009) : 2003 Suzuki Bandit 600N
Word of the day : DILLIGAF

bgfs · Two Stroke Sniffer Joined: 16 Dec 2009 Karma :

Bulb is fine. My theory is the switch but how do you get at it. It would appear that the gear change is connected to a rod which connects to the gear box. How easy is it to get inside and at the switch?
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BGFS

HD · World Chat Champion Joined: 16 Dec 2009 Karma :

Does it need changing? Surely if you're in neutral, you know you're in it? Confused

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Rusty '02 Vito Camper + CBR600F3

orac · World Chat Champion Joined: 25 Sep 2011 Karma :

^what about the safety circuits that cut the engine when the stand goes and the thing is in gear/not showing neutral^

i would take the snensor of and give it a good spray with contact cleaner, let it dry and check the contact etc. if they have some corrocion gently rub them with some fine wet and dry to remove the corrosion.
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Current rides - 2016 Triumph Street Triple Rx, 1994 Suzuki Bandit 400 VM, TGB 204 Classic 125cc
"with nothing left to lose, there is everything to gain. It's not the size of the dog in the fight, it's the size of the fight in the dog"

Walloper · Super Spammer Joined: 24 Feb 2005 Karma :

HD · World Chat Champion Joined: 16 Dec 2009 Karma :

DJP · Crazy Courier Joined: 11 Dec 2011 Karma :

My 1250 Bandit's just the same (and has the same basic engine unit).

It's done a similar mileage, too.

Where is the neutral switch on these engines? I suspect that it's just the switch getting covered with crap.

HD · World Chat Champion Joined: 16 Dec 2009 Karma :

On the bandit 400, it is just beside the gear linkage. Shouldn't be far from there.

On mine though, it looks like it is put in and hot glue injected around it. Maybe you can remove the whole unit or it was a bodge Idea

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Rusty '02 Vito Camper + CBR600F3

BanditsHigh · Worse than a woman Joined: 21 Mar 2005 Karma :

Neutral switch will usually consist of a circular blob with a couple of wires, mounted on the end of the gear selector drum (left side of engine under sprocket cover.

Usually two machine screws hold it in place ... has a copper/brass contact on the inner side ... selector drum has a spring and ball bearing which make contact with (guess) when in neutral.

Easy to take off and clean ... just watch out for the ball bearing ... also check the connector where it's plugged in.

orac · World Chat Champion Joined: 25 Sep 2011 Karma :

the switch, clutch switch and side stand switch make most of the safety circuit, on the 400 the side stand also has reley, and there is a diod that feed the kill from the cluctch switch (if i remember correctly)

also most bike now dont have just a neutral switch, i now the v-valve 400 bandit have a gear position switch with evry gear and neutral with a copper pad. the front sprocket has to be removed to get to it. it has a small retaining bracket and 2 machine screws that hold it in place
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Current rides - 2016 Triumph Street Triple Rx, 1994 Suzuki Bandit 400 VM, TGB 204 Classic 125cc
"with nothing left to lose, there is everything to gain. It's not the size of the dog in the fight, it's the size of the fight in the dog"