GTS Club

[webwanderer]

Hello esteemed gentlemen,

Ok, I'll admit it up front and say I'm a wuss and don't like riding in winter. I normally garage her around May each year and bring her out around September just as Spring starts to warm things up a little (I'm in Oz and seasons are opposite to you guys).
I put her on a battery tender and to make sure things don't dry or seize up I start her about once a month to make sure all is ok.

I started her today and she fired up first go. I like to put her in gear whilst on the centre stand to allow the chain drive and rear wheel to spin freely. Today, unlike every other time the engine stalled as soon as I put her into gear.
I checked the sidestand wasn't down and tried again...stalled again. Must be frozen clutch plate...took her off centre stand and tried to wheel her whilst in gear with clutch pulled in. She wheeled fine. Tried starting in gear with clutch pulled in...nothing. All I got was the engine light flashing. Checked the sidestand cutoff switch wasn't seized, it moved freely in and out.

I'm at a bit of a loss now as to what could be causing this, I suspect the sidestand switch has become faulty. To test this I need to bypass it somehow. Is there an easy bypass procedure I can use to test this or can this be a problem unrelated to the electrics?

Any ideas would be much appreciated.
_________________
Regards,
Webwanderer (Sam)

"Show me a sane man and I will cure him for you." - Carl Jung

[24c]

[wheeler]

coroded clutch switch or sidestand switch...extensive use of WD 40 helps

[24c]

I should also point out these feed the starter relay, you are looking for a blue wire to go to the black if I remember correctly. I am not in front of the bike, or a stripped down one, either way it is unlikely to be a failure, just probably stuck.

I got a new side stand switch from South Africa off eBay, it was cheaper than Yamaha UK including postage
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The MicroSquirts are working on the GTS1000 and Thunderace EFI project

[the dude]

Hey sounds like the same thing that happened to me, it was like the side stand was down, when I put her in gear, died, again like the stand was down. even when I tryed to pop start witch I hate.
Well 24 and wheeler said stand switch,
so I cleaned it up with contact cleaner, real good, I fooken drintched it, like a half a can, and the plug wire, all is good as soon as I did it, that was 5000 miles ago, and all is well.
Also run that bike twice a week, and let it get up to riding temp, lubrication and temp is always good, just ask my wife. really do it, at least once a week, warm that girl up, get her up to temp THEN PUT HER IN GEAR AND RIDE, even if you dont leave the garage
Hey I'm cool, winding down know.
The DUDE

[webwanderer]

Thanks Gents,

I'll get onto it on the weekend and see how I go. I wasn't aware there was a clutch switch so I'll pay particular attention there.

I'll post how I go once I get it sorted.
_________________
Regards,
Webwanderer (Sam)

"Show me a sane man and I will cure him for you." - Carl Jung

[webwanderer]

Well gents,

I'm glad the website is back up and online. You guys are my saviours. I haven't been able to sort my problem out yet and I've stripped half of the body work off already.

Here are the known facts, I have checked them a dozen times...

1. The sidestand switch is not faulty. I have continuity when the stand is up, none when the stand is down.
2. The clutch switch is not faulty. I have continuity when I pull the clutch in or bridge the switch connectors.
3. I suspected a faulty starting circuit cutoff relay, but it appears to be working fine. I can hear it click when I start the bike, but then it clicks again when I put her into gear and that's when she dies.

Something is taking power away from that relay when I put it into gear and causing the engine to shut down

I'm going half crazy checking the wiring as per the Service Manual. I'm going to next check the ground continuity of the Neutral switch (if I can find where it is). The manual on page 7-26 shows a diagram but can't visualize where it is.

I would even be happy to by-pass the cutoff relay just to be able to ride her to the Yamaha dealer and have them check her out. I don't fancy having to load her on a trailer and take her there and as its winter here I have lots of time up my sleeve.

So, does anyone have any other suggestions as to what I should be looking at or how I can bypass the starting circuit cutoff relay please?
_________________
Regards,
Webwanderer (Sam)

"Show me a sane man and I will cure him for you." - Carl Jung

[24c]

Not in front of a bike at the moment, but the neutral switch is under the front sprocket cover, and is usually a pale blue wire (maybe with a white stripe).

I take it you mean #73 on the wiring loom, the one that is has all the diodes around it?

First off, I think you have a bad connection, or faulty diode. If you disconnect the sidestand switch, neutral light, or clutch switch the only component that is affected would be the starter relay #83, now I know this corrodes, under the fuse holder, and this powers the cut off relay solenoid.

If I could get time off work and a flight we'd have it sussed in no time. The best I can do is replicate the fault with one of my GTSs at OmegaChassis garage and fix it. Sorry, but cannot do anything until the weekend though.
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The MicroSquirts are working on the GTS1000 and Thunderace EFI project

[webwanderer]

Ok, I had another go this morning.

Whilst I said the clutch switch continuity was ok I thought I'd check continuity of the two wires at the wiring loom end. With the bike in gear and the sidestand up I am getting 5.25 ohms resistance. When I checked the voltage on the wires I got 6.25v from the black/yellow wire and zero from the blue/yellow wire.

I have also found out that if I earth the black/yellow wire to the bike frame I can have the bike running in gear without stalling. This unfortunately bypasses all the safety gear, but at least will allow me to ride it to the bike shop if I ultimately give up and have the proffessionals look at it.

This is starting to get to me, but I am determined to find out where the problem ultimately resides.
_________________
Regards,
Webwanderer (Sam)

"Show me a sane man and I will cure him for you." - Carl Jung

[wheeler]

you have either a faulty clutch switch or bad contact on the clutch switch wires...check the plug of the clutch switch also...

[webwanderer]

I finally nutted this out and traced where the problem lies. The sidestand switch while giving continuity when extended was not earthing to the bike frame. I don't know about other bikes, but on the GTS the sidestand switch HAS to be earthed! Reading online about by-passing the sidestand switch it tells you to join the wires together, but nowhere does it say then earth them to the bike.

Anyhow I still couldn't get it to earth properly even though I had a good connection. In frustration I finally opened the switch up to check the insides. What I found was that there is a plastic slider inside the switch with a couple of small brass dots. The plastic slider had broken into 3 bits stopping the switch from earthing...bugger. I have bypassed the switch and earthed the switch wires. The bike now runs as normal in gear.

I have ordered a replacement switch from the US...here's hoping I get it in the next couple of weeks.
_________________
Regards,
Webwanderer (Sam)

"Show me a sane man and I will cure him for you." - Carl Jung

[24c]