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Hi,

Rode my GTS the six miles back from my son's school with no issues. Pulled over at the kerb at home to let him off, hit the kill switch and noticed the screen also died. Tried to restart the bike but it was now totally dead. Instantly got a call from the tracker company to tell me the battery had been disconnected and asking if I knew. Checked the fuses including the main one in the battery compartment and they're all OK. Removed the battery and connected it to a charger and it's fully charged! Occasionally there are clicking noises coming from the front of the bike when the ignition is set to "on". Any thoughts what this could be? All suggestions welcome...

Thanks
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@jkj-fz6 avatar
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Did you check the fuses with a meter, not just visually? And have you tested the battery under load? Have you tested the kill switch? Are the battery terminals clean and tight?
The clicking sound...is it steady or intermittent? I'm guessing that it's a relay, maybe a headlight relay, that's not pulling in due to a weak battery.
Dead batteries can appear to be fully charged.
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JKJ-FZ6 wrote:
Did you check the fuses with a meter, not just visually? And have you tested the battery under load? Have you tested the kill switch? Are the battery terminals clean and tight?
The clicking sound...is it steady or intermittent? I'm guessing that it's a relay, maybe a headlight relay, that's not pulling in due to a weak battery.
Dead batteries can appear to be fully charged.
Thanks for that. No, just checked the fuses visually, but if that's potentially an issue I'll just change the two that are linked to the instrument panel (per the user manual!) and the main one - they're not expensive. Re the battery, I've connected it to an Optimate 4 charger, which I think tests it, and it's come back fine. It was fully charged. No, not tested the kill switch, but I've had this bike for 8 years, and the kill switch shouldn't affect the instrument panel, no? Clicking was intermittent...

Thanks - I'll start with replacing the fuses. Issue is that this is a long weekend, and everyone's shut till Tuesday, and would be great if I could get it going before then! Still, this is only the second issue ever on this Vespa (and this is my fifth in 22 years, and the others have been equally good!), so can't complain...
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@safis avatar
1979 P150X, 1983 P200E, 1987 PK125XL Elestart, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
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Could be a bad main switch. They tend to crap out...
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SaFiS wrote:
Could be a bad main switch. They tend to crap out...
Thanks. That I can't fix! Will let you know how I get on...
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@steelbytes avatar
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how is your tracker connected? does it maybe intercept some wire that let's it act as an immobiliser? or is it simply directly wired to the battery or what?
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SteelBytes wrote:
how is your tracker connected? does it maybe intercept some wire that let's it act as an immobiliser? or is it simply directly wired to the battery or what?
Thanks. Again, good question! It's a Datatool tracker (https://www.datatool.co.uk/motorcycle/, though 8 years old so probably a different version), which is wired into the ignition circuit (so the tracking switches off when the ignition's on) - it's been used to recover this bike twice in eight years (though plenty of other attempts, a 300 GTS is the choice of the criminal class!). I called them this morning to confirm that doesn't have a fuse, and apparently it doesn't. Will change all the fuses a bit later but if that doesn't fix it will wheel it down to the local garage a mile away on Tuesday and see if they can find the issue...
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When you say kill switch, do you mean the red switch on the handlebar?

I'm not sure why, but this is only meant to be used for emergency use and not for day to day switching off the engine. Obviously it shouldn't have resulted in a completely dead Vespa though!

My guess is that maybe this has activated a fail safe within the tracker to stop the Vespa being stolen?
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JakeM wrote:
When you say kill switch, do you mean the red switch on the handlebar?

I'm not sure why, but this is only meant to be used for emergency use and not for day to day switching off the engine. Obviously it shouldn't have resulted in a completely dead Vespa though!

My guess is that maybe this has activated a fail safe within the tracker to stop the Vespa being stolen?
Yes. Really? I use it all the time to kill the engine. No, it should definitely not kill everything off!

Changed all the fuses including the main one and no luck. I'm just a rider though! I'll be wheeling it down to the pros on Tuesday and see if they can work it out...
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Reporting back - apparently it was the battery, accepts charge (hence why it went green on my charger in 5 mins) but doesn't keep it! Anyway, great news - at least it wasn't anything more serious...

Quick question pls - borrowed a 2016 Vespa 125 GTS for this week and it feels way better than mine (power aside, it's a bit lacking in that!). Did Piaggio change the dampers in the suspension? This feels way less crashy on bumps...

Thanks
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