Piaggio 50cc purejet wont idle or run :(

[Coddas]

Hello! I have a early 2000 Piaggio NRG mc3 purejet that wont idle or run . it starts up nice and sometimes if im fast i can even ride it 10-20 meters before it dies .  But most times it just start up and idle for a few seconds . Anyone know what that can be ?  Thinking on put a carb on soon 

[oldgeek]

Try giving the carb a through cleaning and check that your fuel flow from the tank is good.

[aeroxbud]

It's injected. 🤔
Could quite possibly be an air leak of some kind. Check all the manifolds and seals for cracks, or leaks.

[pinkscoot]

What kind of shape is the fuel pump? If it's like the later Purejets they have a contact problem in the pump. If its the same as the later ones the fuel filter has a vent on it because the pump pulls fuel at a high pressure and the normal gravity can't keep up.


This is a picture of the filter.

Here is a video of the fuel pump repair so you can see if you have the same one:

[aeroxbud]

There is a manual in the tech section for your scooter. Click on the tab on the left.

[Coddas]

Sept 23, 2020 15:59:16 GMT -5 pinkscoot said:

What kind of shape is the fuel pump? If it's like the later Purejets they have a contact problem in the pump. If its the same as the later ones the fuel filter has a vent on it because the pump pulls fuel at a high pressure and the normal gravity can't keep up.


This is a picture of the filter.

Here is a video of the fuel pump repair so you can see if you have the same one:

I dont think is the fuelpump , i can hear it every time i turn the key , Funny there is a fuelfilter when a scootershop (piaggio seller) told me it dont have any filter

But i will look on it

Sept 23, 2020 18:07:00 GMT -5 aeroxbud said:

There is a manual in the tech section for your scooter. Click on the tab on the left.

Nice! Mine is generation before that one but the troubleshooting/injection part cant be much different

[Coddas]

I got a carb engine for it today if i dont get her running