Diagnosing CDI Ignition Spark Problems on Vintage Vespa P series 

It's a rarity to find information that is so relevant to my issue, explained by someone so extremely knowledgable like this instructional. Thank you for sharing your knowledge Robot! Now I just need to find a video explaining how to keep from buying things that need work!

Thanks for this video, Robot. 👍 I knew about the "remove ignition switch wire from CDI" trick so had bodged that for a while. After your troubleshooting tips I found a short in the wiring in the headset and now all sorted! 👌👌👌

Thanks Robot! You have the best Vespa how-to videos on the internet!

Mr. Robot I love your programs here you're the wizard of Vespas

One of ur best! Robot. There is something about the old way of doing things.

I really don’t understand why some people dislike this video, robot explains really well

Great video Robot. Thanks for the tips !

Very informative Robot. Kind regards from London.

This is just such a pleasure to watch. Thanks for posting!

Great job Robot! Just resolved my issue.

Always informative ....Great tuition, great channel !

congrats, a very good video, I'm having problems with my 150 speciale and now know the right steps to make it run. Thank you very much!

Thank you great tutorial! Have a 91 Vespa Cosa 200 in Greece that one day I plan to restore to like new!

i just scored 2. 1979 p200e the both have supposed burnt up cdis...thank for doing all the test...this is a great video...big fan

Hey dude I’m from the uk and I bought a Vespa ox 200e 1994 ! Love the videos ✊

Benim px 200e Vespa da ateşleme problemi var. Sizin mükemmel anlatımınızla çözeceğim.

This taught me a lot!!

Great video Robot!

another helpful vid, good to have met you

Excellent Video Robot - Wow you know your stuff - Thanks From North east England

Awesome, I learned so much.

Very good presentation Thank u

Glad you guys continue to make videos with vintage bikes. So much content on RU-vid with vintage scooters but they aren’t in English. Anyone know any channels or forums online where I can find more info on working on my vintage small frame?

Great video Robot, certainly food for thought. I am trying to figure a problem out with my 1987 T5 Mk1, when I rev it out and change gear, on occasion I get a backfire, not all the time but happens at least once every time I'm out on it. I have a 152 Polini kit, SIP 2 exhaust, SIP filter if that makes any difference.

Very helpful video. Thank you. I have a problem with my p200e. Had no spark so checked as you said. Tried with the multymeter the wires. I get 480 from the white/green but nothing from the red one. I thought it was the picup. Changed it but still nothing. What comes next?

Great video as always. If you get chance I would love to see your diagnosis of a clutch the makes a noise from the engine when you pull the lever

What's funny is I don't own a Vespa right now but I was raised on a 1973 olive green Vespa 150 super, plenty of family photos of me riding I'm 60 now I was thirteen when they bought our first scooter

Hello thanks for all your great videos. My question is this sort of the same for 1967 VLB1 ? Thanks

Love your videos robot so helpful keep up the good work from a scooterist in bonnie Scotland 👍

Quiero comprar una Vespa 150 y solo encuentro una baja cheetah y otra Stella recomiendas una de esas Ya he tenido 2 Vespa y las amé

Actually mine is a question when ever the engine is running and that sideboard is mounted, automatically the engine stops normally the side where the engine is hanging.

Hi. Great video. Good job Robot! Question: I have 1980 pe200x. My CDI is black and has one connection for the spark plug and one for the Green wire. No other plugs. Is that ok? How can I replace that with the blue CDI in this video? My stater wires go directly into the junction box. Any help would be appreciated.

excellent video, this comes realy handy for us vespa noobs, thank you! do you have some similiar video on vintage 6v models, like sprints etc (specially about coil ohm and voltage figures and so on)?

Hi Can you do a step by step video on how to change a Stator /Charger on a Piaggio mp3. There is nothing out there. Great video on electric problems i.e. volt levels and continuities on connector/battery

What spark plug do I need for a lml deluxe 150 2t

Do a vid for the Femsa system on the Rally200 😉next please

Ah, yes, old crumbling ignition related wiring and a non-injected 2 smokes. The perfect shit storm. 💩👌🏻🤣 All hail EFI and modern materials. BTW, love these kinda vids, even tho I don't have a Vespa but I find it very entertaining and educational. Keep up the good work, Mr. Robot !👍🏻

Great video, if i have red-white -108,5 and green-white - 571 it is a big problem ? Thank you very much !

I am having some problem on starting a vespa p 125x.. can u help me out?

At 7.00 you ground the spark plug on the painted flywheel cover ? ??

Thank you for your videos. I already have problem with ignition. I changed sparkplug, wire, CDI, ohms are accordning to your video, stator give enough volts, green wire to ignition are ok...but stil nothing :-(

Proper spark but my Vespa after 10km not even get start. What would be the problem.

Is that Robot's dinner that appears on the floor boards at 36:27?

Afternoon sir. I recently purchased a 1964 Vespa Allstate and the kill switch isn’t working properly. I replaced it and still have The same issue. The switch won’t shut off the engine. Only way the switch works is if I’m contacting the back of the contacts against the handlebar . Is there anything I can check ? Thanks

Currently working on a Piaggio with the issue of holding spark plug against ground it shows weak spark.....Removing the spark plug and cap, then holding cable against ground I have superb spark...... So replaced Spark plug and tried again, but weak spark remains??? Any help would be highly appreciated. Thanks

Hi robot i need some advice on my 2004 Vespa LML 2t polini 177. the pick up on the stator plate is fine but the lighting coils keep burning out or something like that the scooter is currently on it's 3rd stator plate. its a non battery scooter. i would appreicate any feedback you could give cheers.

Buenas, pickup de encendido nuevo BGM hp arroja 94ohms la moto funciona correcta, es muy bajo ese valor? Saludos

Hi, Love the video's, so informative. I followed this one to the letter as I have a Motovespa TX200 which is just refusing to start, I have good compression 120psi - I have checked the white/green 510 and white/red 110 so the stator is good, I have fuel as I can see/smell it. I just have a weak spark, tried different plugs, still weak. the coil is new. So the last thing is the flywheel magnets - do you think that is the last thing to replace?

Ireland question, at 7.50pm Saturday evening, What cud be wrong iv no curtains coming to the spar blug on my 1982 100cc vesba, what cud be the problem? Thank u.

Hey Mate this is a very nice video, thanks for that! I have a P150X from 1984 and the engine is dying high speed, usually when I`m in 4th speed. could you give some hints?

What's different 150 engine and 200 engine

is these ohm values are same on px200e?

No sir not too long for me I watched every minute

A piece of rope down the spark plug hole would bind up the cylinder for you to torque that but

I have a 1984 Yamaha scooter 125Z my flywheel old doesn't have any magnetic you said that I can send it to you to get it magnetic do you have an address and how much would it cost

Hey robot. I have a 2008 stella 2t and i hasn’t been started since 2016. I have no spark. I installed a new coil, oem cdi, spark plug. Tested all the wires with multimeter and everything looks fine. Wats my next step cause I’m at a roadblock

Hi Robot I watch one your video about spark plug & wires I took out champion rg4php to check out & wear down for Piaggio mp3 was 13 years old & miles 003708! I order new spark plug & Prime plug wire!

Why fire in section,when start?

my Vespa PX 125 runs amazingly when cold… but cutting out when it is hot as its getting air when I throttle!!!!

I wonder if you could clarify something for me. The only purpose of the green wire that runs from the CDI to the kill switch and key switch is to allow you to kill the engine. With the green wire disconnected at the CDI, the scooter will run, but you have no easy way to turn it off. Is that correct?

Bought vespa 50cc piaggio for 100 euro running perfect no key an was driving an lost spark can figure it out

Quick question for you robot, is that back light on that scoot a replacement fitted by the owner or is it a North American issue? It looks like a light from a older model and not the og one.

robot our vespa super heroe!!!!!

Hello there! I am sending this message from Greece. I see that you are a vespa expert. I own a Piaggio X9 500 SL, 2002 model. I turned to every Piaggio dealer I know but no one could fix my problem, so I am asking for your opinion, please. The problem I have is that when I turn the key on the digital instruments I have on my steering wheel will not check at start up except the warning bulbs on the upper raw, (high and low beam, reserve, rear brake, alarm, injection, etc.) Do you know what to do? HELP PLEASE!!! Thank you in advance

Do you have an email address? No body will work on vintage scooters here in Louisiana. Have p200e

Where is yours shop located?

I have p150x. Since I got it. Eats plugs at idle. If the points and condenser slightly off it will eat plug 2kms if it's setup perfect. Eat plug after 200 to 500km. Depends how long it idles. The problem not enough spark at idle... if I lean it out where it shouldn't be it will still eat plugs. Not fuel related. Coil? Stator? Flywheel? My plug usually killed by carbon. I have px and veloce. Don't have this problem. Eish

That piston working with no oil lub. It hurts

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👍👍👏👏

Iam interested in

Iam india my vehicle is 150 2stroke

Yoda, not robot.

Habla español?

WITH SO MANY GREAT VIDS TO YOUR NAME YOU NEED A BETTER CAM THE AUDIO IS TERRIBLE ON THIS CAM IT SOUNDS i DUNNO MECHANICAL LIKE YOU HAVE A SMALLVOICE BOX..ONE OF YOUR SPONSORS NEEDS TO SPRING FOR YOU