If it just "dies" I would suspect it runs out of fuel (fuel starvation).
You have an electric
fuel pump on the 25XP.
If it is the "round" Facet pump, the bottom comes off and there is a "secret" filter "screen" inside that clogs. ("the 'forgotten' filter).
filters have an anti backflow "check valve" in the inlet which can collect gunk. Remove the valve and clean. (https://www.cruisersforum.com/forums...or-205935.html
Maybe your electric fuel pump
overheats and stops working.?
See if fuel is still getting to the engine filter/injector pump right after
the engine "dies".
With the ignition switch ON, the electric
fuel pump will be energized and may be running (clicking). Disconnect the fuel tank return line from the "bleed" thumbwheel at the injector pump
inlet. Open the thumbwheel and fuel should come out of the hose nipple.
If you do not have a "thumbwheel / return line" then you have a simple bleed fitting. Turn on the ignition, loosen the fitting and fuel should spurt out.
No fuel= no fuel getting to engine. (or engine-mounted filter is clogged..)
Other areas (some already mentioned) of possible stoppages:
- Fuel tank pickup
- inlet of Fuel shutoff valve at tank (if one is installed)
- Clogged fuel tank vent (bugs/ wasps). Open the fuel deck
fill cap to relieve any vacuum and see if engine will start.
-Old fuel hose collapsing (internal walls).