Plugged muffler ot cat converter
Yes.
Vapor lock!
Sounds like a fuel pump.
bad ignition timing.
what would cause a 150cc scooter to lose power?
A dodge pickup 1500 would stall out while driving because of a defective air filter.
It could be your connection to your battery. If its bumped loose, you would lose all power, even while driving.
It could be the spark plug wires that's what was wrong with mine.
Change the fuel filter first.
There are many reasons as to why a car may lose power while driving. However, the most likely cause is a bad fuel pump. This causes the car to 'think' that there is not any gas, so it begins to stall, and eventually stalls while driving.
If you lost power while driving and it did not start again, it could be an alternator issue. Double check the battery just to make certain it isn't an issue with the cable connectors too.
At what point does it lose power? As you're driving? When you come to a stop? plugged converter