Engine loosing power with "2 dots" of Fuel

[williansoler]

Hello guys,

I have my GT 300I for two years and 16000KM on it. Never had any issue. Do my maintenance always before time/KM. Recently I've been experiencing some loss of power when the fuel mark went near 2 dots of fuel remaining. Yesterday I had this problem and thought it was bad quality fuel as the problem went away as soon as I filled up the tank. Today I did a 100KM trip with no issues and, as soon as I got the same point as yesterday (2 dots of fuel remaining), the scooter started to loose power and I had to be very cautios with the throttle to make it to the fuel station. It's like, it goes little bit better on leveled ground but as soon as I throttle up or have to go uphill, it starts to loose power at the point that I have to stop completely. As soon as I filled up the tank it went away again.

Before I filled up the tank, I visually checked for remaining fuel on the tank and there were more than enough fuel.

Never had this issue before, I have driven some times to the 1 dot fuel mark and never had this loss of power issue.

Does someone already had this issue? The Kymco repair shop told me that It might be a fuel pump issue but it's strange that it only happens at an especific fuel quantity.

Thank you very much!

Kind regards,

Willian

[Neil955i]

The only time I experienced this was with my X-Town 300i and it was a vacuum forming in the fuel tank which cured itself when releasing the fuel filler cap. 

When you stopped and checked for fuel, was it OK afterwards?

[Ruffus]

Neils hint might be done first, open filler cap.

Sounds to me like inline fuel filter/pump (fueltank) related issue.
Take the fuelpump out, change the filter and see if the prob is still there.
If still there, change the pump-body AND the fuel pump relay.

Maybe att link helps
https://www.kymcoforum.com/index.php?topic=34331.0

[JJJoseph]

This is a fairly common small motorcycle issue.  I always solve it by checking/cleaning the fuel tank vent, air filter, and the carburetor.  It's one of these.  If it's fuel injected, skip the carb part, but have a look at the fuel pump!