Compressor on a scooter? Aprilia SR50 Morini Direct Injection. Seized compressor.

[@EinarLerschen]

Always nice to see ditech videos. Keep em coming! Did you measure the fuel pump pressure on this one? Would also be nice to see a video from that. Do you measure it while cranking and do you remove the spark plug wire for that? Or do you measure it while running with a T-adapter for the meter?

[@knetterman]

Don't own a fuel pressure gauge at the moment. Testing the fuel pressure can be done by checking if the injector sprays fuel when removing it and then crank the engine. This doesn't work if the regulator in the injector is bad. It regulates 2.5 bars. If fuel comes through I assume the pressure is higher than 2.5 bar. Also one could take a 2.5m fuel hose. Take the pump of scooter, put the pump on the floor and put the hang the hose 2.5 m up in the air and put 12 volts on it. If fuel comes out the top it should have 2.5 bar in theory.

[@EinarLerschen]

@@knetterman That is some good reasoning, alltho I did purchases a fuel pressure gauge on mine already. Planning on putting the piaggio ditech sr on the road one day again. Mine has some serious cold starting issues. It starts always on the first crank and immediately dies after 1 second. I have to do this like 8 times and then it idles. Running is awful sputtering alltho it clears on certain rpm-range so one can squuese the acceleration atleast to some point but nowhere one could say it works.

[@dokesz530]

Put it in old petrol then clean it.Damn that compressor is in very bad shape.