Paugeot tweet 125cc - won't start all the time

[bloodwolf]

Hello,

I have the paugeot tweet 125cc moped and it was stolen few months back, since then I have been having continuing issues with it.

The bike won't start, unless use a jump pack or charge battery. However once I've driven it somewhere, it's dead again.

I installed a new battery and now once again having the same issues.

So, today I got a voltage meter and here are the results...

Battery 14.05

16.75 engine on

18.85 low reves

19.05+ on higher reves

I have also looked on the workshop manual where the regulator is, but I can't find it where it's meant too be.


Anyone know what is going on? I would appreciate any advice.


Thank you.

Update: I've had the bike running for about 15mins and battery has dropped too 15v already.

[Nobby the Bastard]

Where are you testing the voltage with the engine running?
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[bloodwolf]

[jaffa90]

""""So, today I got a voltage meter"""

Is the meter set on D/C or A/C voltage when testing?

[bloodwolf]

[Nobby the Bastard]

[WD Forte]

meter setting looks fine so I'd say it deffo overcharging
if you get a rotten egg smell that's yer battery cooking that is
and not to be too technical but it will soon shit the bed.

over charging can affect other electrical systems, not just the battery as the higher voltage may burn out other components like coils for instance as the primary coils have a pretty low resistance.
12V into a 3 ohm coil will draw 4A and 36Watts
19V into a 3 ohm coil will draw 6.3A and 57 watts

Bad grounding can cause reg rec outputs to 'float' even if they're not faulty
____________________
bikers smell of wee

[jaffa90]

As said the meter setting is correct and readings way to high, so try testing a 1.5v or 9v dry batteries to rule out the meter.

[Nobby the Bastard]

[jaffa90]

[Nobby the Bastard]

Still better off seeing what the voltage is after leaving it for 12 hours. If it@s still saying 14 v and won't start then maybe the meter is overstating the actual voltage.

If, however, it's saying less than 12 v then the battery is knackered and is a much more useful result than seeing how inaccruate to 2 decimal places your meter is.

Oh, and the first result from your google search? Home comsumer electric meters and not multimeter....

https://www.citizensadvice.org.uk/consumer/energy/energy-supply/your-energy-meter/find-out-if-your-energy-meter-is-faulty/
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[bloodwolf]

Thank you for all the replies.

The tester is brand new and has loads of good reviews.

The battery is also brand new and was only put in about 4 weeks ago. I had same issue with last battery.

After bike was on for about 40mins with engine running on its stand, it went down too 14.40v.

I'll check in morning and see what it reads, I'm just so confused what it could be and also where the reg even is, I can't find it.

The wires were reconnected after it was hot wired, so could it be a wire on the wrong place?

[Nobby the Bastard]

You need to check the voltage on the battery after the bike hasn't run for a reasonable period. I.e. about 12 hours. Do not start the bike before checking or whilst checking.

There is a difference between checking the voltage the battery kicks out and what the charging system kicks out.

If you've just replaced the battery and the new one has been fucked its being fried by your charging system.

As I said, those voltages are far too high and there's something wrong with the regulator. I'm betting you'll get a reading of less.than 12 volts in the morning.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[WD Forte]

!4.4V across the battery terminals is quite feasible if it had recently been running at 19v ish as the voltage won't drop immediately
when the engine stops unless there's enough load on it to pull it down.
It could take a while for the battery to normalise.

When it was nicked the wiring was quite possibly frigged with
and if they pulled a ground connection loose, that could drive up the voltage from the RR

All the OP bothers to tell us is its a tweet 125
Oh fucking great, we're all tweet experts here right?
year? carb/EFI? (they have different fucking wiring and RRs)

don't fucking tell us, we love the old guessing games we do
____________________
bikers smell of wee

[bloodwolf]

[Bhud]

[Easy-X]

The year would help at least.
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Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter

[bloodwolf]

[bloodwolf]

Just tested battery and it shows 13.38. didn't turn bike on, left it off.

Thanks.

Update: Just checked the grounding by putting it on negative on battery and touching different metal parts on the bike, I pretty much get 0 or 0020.

This is using same settings has yesterday.

[Nobby the Bastard]

Turn it on and then check. Don't start the engine.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[bloodwolf]

[bloodwolf]

[Nobby the Bastard]

That seems a big drop and down at around the level where it may not start.

Does it?
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[bloodwolf]

[Nobby the Bastard]

Right.

So, the power going to the battery has knackered it.

if there was no regulator how is the power getting to the battery?

Has someone just taped the wires out of the stator to the wires to the battery where the regulator is supposed to be?
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050