Gilera Nexus 500 Fuel Pump issue ?
Posted: Fri Jun 12, 2026 12:53 pm
Hi All,
I'm having an issue with my 2004 Gilera Nexus 500 and looking for possible causes.
The fuel pump stopped working and upon its removal was confirmed as dead. A replacement was procured and fitted but the engine would not start, then it too stopped working so procured and fitted another one followed by a new pressure regulator and injector to be on the safe side.
Engine now starts and ticks over, but will not rev.
I'm unable to find a new complete fuel pump assembly, so does anyone know of one or what the issue might be if not fuel related.
Thanks.
I'm having an issue with my 2004 Gilera Nexus 500 and looking for possible causes.
The fuel pump stopped working and upon its removal was confirmed as dead. A replacement was procured and fitted but the engine would not start, then it too stopped working so procured and fitted another one followed by a new pressure regulator and injector to be on the safe side.
Engine now starts and ticks over, but will not rev.
I'm unable to find a new complete fuel pump assembly, so does anyone know of one or what the issue might be if not fuel related.
Thanks.