Diagnosing Electrical Problems on Vespa/Piaggio Scooters 

Thanks for the clear explanations. You're just the best!!

What should I be testing if the Scooter does not turn but the fan comes on when the key is in on position?

Another great informative video, thanks Robot

Hi, I made the test on my Gts 250 and the results are 1) when scooter is On 18.5 2) when is off 0.3 Oms 3) OL is ok… the battery test is 12.6 (battery is from this year) when is off and 13.5 when is on and you give him power. Shoud I replace the startor in this case or looking for something else? Thanks

Hello. A nice and descriptive video. Thanks for this. I have a similar problem on my motorcycle. I own a 2012 model 500cc piaggio scooter motorcycle. When my engine is on the stand and idling, the EFI lamp turns on after 3-5 minutes. After getting on the engine and starting to drive (about 30 seconds), the light goes off. The battery was weak and I replaced the battery. But it seems like the problem is not with the battery.

Hi there, My mp3 400 has a dead battery and the key unlock mechanism does not work. Is there a way to jump start the bike someway? Or some cable under the bike I can manipulate to open the seat or storage area for the helmet?

When I accelerate my red warning light comes on and my efi comes on on the main display panel. It’s an aprilia sportcity 250cc. Not sure if it’s just a loose wire or if my efi is bad. Only 8k miles.

Have a Beverly 125 ie, will randomly stall for a few seconds and then recover. this sound like a stator plate shorting out?? any help appreciated.

Hello,l have a question. My Fly 150 suddenly stop and every thing work ,but won't start and crank,when turn on no engine light also code red light dead what happen? Need new ECU or new code?

I have a Three wheel Piagio MP3 500. My rocker switch for headlamps don't come on is it the rocker switch or something else

The medley 150 doesn't have a regulator. The voltage drops while I ride. I have to test the stator and change it?

Hi Everyone! I have a 2019 Vespa Primavera 150 cc. I can go for a 20 minute ride, but when I go to start up again, my Vespa won't start. After 20 minutes, it starts right up. It always starts up immediately when I initially take it out. The Vespa dealer said I need a trickle charger... but it seems crazy that I'll have to take it off and put it back on whenever I want to ride my Vespa. I just followed Robot's directions, bought the voltage meter, got 12.5 when Vespa was off, 12.3 when in accessory mode, and 12.9 when on. Seems too low. Do I buy a new battery? Thank you!

Hi. Do someone know where the voltage regulator is placed on a piaggio x7 250. I have looked everywhere but i cant find it! Thanks Mattias fron Sweden

Brown connector issues were common on the Aprilia V2's of that era also.

Hey there, would it damage the bike over time to use the wrong sized battery? All sorts of issues came up and eventually I could hear the starter but it wouldn’t spin with the engine, forcing me to repair it. Said I was in need of a new stator (mechanic also recommended another battery.)

Thanks

Hi i just want to as i got piaggio medley 125cc 2017 model my problem with the scooter it start but won't but engine is not rev up not picking speed i checked throttle body drive belt all ok

Hi Robot, my vespa 200 gt has no spark in spark plug when i start it. battery and coil is good upon testing with multi meter. please help

Hey buddy wondered if u could help me out recently purchased a piaggio x9 500ie on the dash the engine management light comes on when reaching 30mph but when stationary or in the 20mph the light stays of the guy had taken it to a piaggio dealership and said couldn't find anything but the chap who owned it was old and think they have taken advantage he was in his 80s.would u say its the voltage regulater causing the fault or the fact it has a aftermarket exhaust on GPR make and maybe throwing up lamba sensor fault.

Interesting! I’ve got a 06 fly150 that I’ve been riding regularly and today wouldn’t start. I checked and the battery is at 12.2V so a little low, drops to 11.8 with key on, and down to like 6V when cranking. Struck me as odd since the battery still has above 12V. Could this be a sign of a bad regulator???

The video is great.I waiting for the continue

Will be great if there is a video about GTS300 stall problem

Hi my on my lml star 2t the lights do not work. They run off the AC with the AC plug un plugged checking with a multimeter there is no voltage coming off the AC wire. So I replaced the stator for a new one and still have the same problem I still have a spark and the engine runs fine and I have checked the resistance to the manual and all good.. Any ideas ?

Hi, I am trying to fix the stop light on a 60-s Vespa. Do I understand correctly, that when the stop light is off, the lead from the coil is shorted to the ground and when you hit the brake the switch cuts the short and the stop light then turns on? Thanks.

Excellent video👍 Do you have one for a vespa px200? Got one that doesn't charge AND the electric start has failed.

Need help couldn’t find any help on u tube.. new battery, no display after turning on ignition, checked all the fuses in glove box, ????

Hi, I don’t get any reading when testing the centre wire from the stator plate. Wire issue or stator?

Hey robot, I have a rand new supertec gts 300 only done 390 miles, I have noticed that the bike strugglrs to start, on few occasions would not crank over. Now on the LCD screen unique to the Supertec, the message produced is ECU Disconnection Service in Red. Any idea what this means, am taking this to dealership for first service, in next few days, feedback appreciated

My friend and I both have 2013 BV350's. Oddly enough we both have the same issue when starting the scooter. Very frequently, it takes 2-3 attempts to start the scooter. Warm or Cold it makes no difference. We just assume it's a design issue. Is this something that can be fixed? Or not worth fixing?

hi robot, i have trouble with my vespa s125 iget, can you help me? the problem is that the injector lights turn on when the engine is running, where do you think the problem is?

Hey what electrical motorcycle and motor scooters that doesn’t run on gas? I tried researching nothing came up .

Hello sir, i'm just going to ask if what is the problem of my vespa lxv 150 ie. it will start but can't accelerate. i've already change the ecm body throttle,puel pupm,injector and sparkplug but it is the same problem. hope you can help me sir. thanks!

My Fly 150 has a winding sound when I hit the start button. The battery is fully charged. What is that sound and why won't it start?

TY replaced ign lock cylinder Any advice on how to do the same for the Trunk lock?

If an LX-50 has dimming lights on rev's and turn signals not working at all would that be a rectifier issue or a CDI issue? I've looked through the manual and can't find any information on the turn signal relay. Cleaned grounds and wires + New Battery + cleaned connections on CDI and Rectifier Thank you! Love your channel

Robot i have a problem with my speedometer in primavera s 2019 iget abs it goes off nd on and even just the key nd panel on the needle moves up to 20kph... Kindly help tia

well presented videos Robot

I had one of those, 22000 miles and had to dump it, all kinds of problems, no charging, other time no spark, then bad rear bearings,bad master cylinder, and more, lots of problems,cost more to fix than than it was worth.

HELP HELP I. have a vespa px 200 , , had a new regulator fitted , that is when the probllam started ,it keeps blowing bulbs , had it back to the auto electrician 3 times , frustrating

Great Video ! Where ı can find the plastic cover which you removed to reached cables at 7.21. Can you share item code please

Thanks Robot

Hi i have a gt 200l 2004, the seat release button does not work and now the manual release in the tool box does not work, any ideas how to release the seat or fix the electronic seat release please

Thank you for the video! Can’t wait to see the update. My GT L was discharging the battery all te times and I didn’t know what was going on then found out the Stator was on its way out. Is there a chance to do the job without taking off the engine? Thank you again!

I have a problem with my piaggio medley 125cc with the electrical starter he won’t start and nobody can explain me how this scooter work

Hi sir where can I get a wiring diagram from a Vespa 125 GTS ie from 2010 . I think I have a current leakage. I have a current flowing from 82 mA when I even have not put the key in the contact.

Hi sir my Vespa lx150 no spark in spark pug when I start it battery and coil ok please help

Hey Robot. Thanks for the videos! Learning a lot! What would do if the scoot won’t start? 300 gts 07. Fully charged battery, I try to start but all it does is click. Does not turn over. Before this it was delaying to start until it went completely to just clicking. Any ideas please? Robot or anybody else?

your not working for subway anymore ?

Why does my engine telltale light on my piaggio Beverly stay .on thanks .

Plz, May i ask you a question, my scooter random appear hight voltage to the system around 18-19 DC volts . which parts defect?

I have a vespa gts super 300 2015 THAT CANNOT STAND STILL. Literally moves forward when I am in a red light. Nobody knows why! Can anybody help?

Coolant was low .fan kicked on ..topped off coolant fan still kicks on after quarter mile ?can some one please help.vespsa 300..2012

I always had issue with the voltage regulator where id be replacing it every 7 to 10 k miles

I TURN ON THE KEY AN DONLY HEAR BRING SOUND WITH NO DASH LIGHTS , NOW EVEN THAT LIGHT IS NOT OCMING ON

Hey Robot you should do a video about your BV350, modifications that you have done and where did you travel with it. 26000 miles is a lot.

My oil sump plug is threaded and I glued it in with gasket silicone... Yum.. now to trade it in

Always start with the battery terminals. Many strange issues boil down to a loose battery terminal. Ask me how I know lol.

sir hire me i would love to learn this all things i will work extra hours without extra salary