Modern Vespa

Hi can anyone help !!
I have a Vespa PX200 with a 210 mallosi kit with a race crank sip clutch and scorpion exhaust.

When ticking over the engine sounds fine although you can smell petrol a bit more than usual. When idling the engine was hesitating when you revved the engine but I have eliminated that.

As soon as I put it into gear and pull the clutch out the engine cuts out and it smells like the engine has flooded.

Prior to this fault occurring I had to replace the clutch. When the bike was running the engine was hesitating I thought when I replaced the clutch that would have solved that issue.

When I did replace the clutch I wasn't sure if there was too much movement in the fly wheel when I pulled the clutch in meaning that the crank was slightly out, if the crank is out would that cause the effect I am getting ?

Hopefully someone can point me in the right direction !!

I've moved this to the 'Not-so-Modern' section where the shifty crowd hang out.

And welcome to Modern Vespa.

to MV from the Sunny Aegean!

If you suspect flooding, then check the components related to flooding. Flooding is a result of excess fuel, and fuel comes via the carb.

Have you checked the carb to be sure the float valve is functioning properly? No dirt, proper seating, etc?

Could also be adjusted too rich.

Have you pulled the spark plug after the engine dies? Is it wet?

It sounds like you suspect two different problems...clutch or fuel. Id go for fuel first...
1)when the bike is ticking over is it more smokey from the exhaust (once the choke is off)? If it is it sounds as though its running too rich.
2) once your ticking over if you pull the choke does it stall or go all lumpy? It should want to. If not then again its running rich. Thinking about it you may have autolube?
3) what else has changed or been changed since it was running fine?

Thats all I can muster with the details so far! although guaranteed it will something tiny n simple

I'll jump on the flooding band wagon. It sounds pretty classic. Have you cleaned and rebuilt the carb? I would remove and rebuild the carb. Call Scooter West and plead ignorance; they will give you a lot of help. It sounds like you need the new float valve that will come in the rebuild kit, and maybe a bigger main jet to match the more free flowing pipe. Do an initial set up of the jets and settings like they tell you to, and then fine tune it. There are lots of instructions around for that.

And welcome.

Thanks for your suggestions, i will have a closer look in the new year.
The problems started last year in March,
A few of us had engine problems after we stopped at one garage on our way to a rally ! It might be connected or just a fluke !!

supermarket?? there was some bad fuel knocking about at the beginnin of the year

I am watching that video of the blue bike over and over and it just blows my mind.