Modern Vespa

I have a 2006 GTS 250 that apparently has the fuel pump issue again! I replaced the fuel pump in 2018 shortly after I bought the scooter. Bought it with 300 mi on it and shortly after that developed the fuel pump issue. Replaced it with the fuel pump with the 3 blue dots which is supposed to be the replacement.

Scooter now has 22k miles and has developed the same type of issue although I can hear the pump turning on but when hot, cranks but won't start. Cold start no problem. If I ride for awhile like 75 miles or so, stop for gas and it will start. If have problem starting, I have put a full liter bottle of gas in it and it will start.

So, I am surmising that I am having the same issue? Or is there something else going on?

I have the pump previously replaced but cannot find a replacement motor with the same part number, 1100-00692. Does anyone know of an equivalent replacement motor so I don't have to buy the complete assembly?

These are good pumps: https://www.ebay.com/itm/394364922466

This might be helpful. Replacing Fuel pump Vespa GTS

edited to remove all that tracking dross from the URL. jimc

So after you open the gas cap, the scooter starts just fine, even when hot? If so, your next step would be to remove the evap crap.

No, even if I remove the gas cap, vent, it still work start. Cranks but no start. When I dump cold gas in will start. Has caught when I am also holding throttle wide open, sometimes, then have to keep reving it a little bit.

Got it. New pump needed.

Have the previous pump so hoping to find just the motor. The pump in there now is the replacement I put in in 2018 and it had the 3 blue dots so was supposed to be okay. Why fail so soon?

Any ideas on where to get just the motor?

As above - apparently this one is good: https://www.ebay.com/itm/394364922466

21.7k miles sounds like a pretty decent lifespan for a scooter fuel pump, right?

I would disagree. I think it should last much longer as others have

Seems to me that although it should have lasted longer, that mileage is not outside the realm of reasonability of a "normal" lifespan.

I think it should last much longer and it would be interesting to hear from other older GTS 250 owners on how much mileage is on their scooter with the original fuel pump

What I mean by "normal" is that if in 100 fuel pumps, 10 conk out at 20k miles, that might not be aberrant, especially if the manufacturing date of your 2018 installation is unknown.

Look, what I'm trying to say is that I agree with you that it should have lasted far longer, but 20k is not necessarily defective.

Here's the question. If my car blew a fuel pump every 21,000 miles is that normal? The stress is the same as a two wheeled, fuel injected vehicle. Ask a Gold Wing owner with 100k how many times they replaced a fuel pump.