Hi there,

My beta's fan stopped working and I figured out the problem, the water pump. Has anyone got a spare impeller in the Leicestershire area?

I need it by sunday really

thanks

There's no connection between the water pump and the fan. The fan's controlled electrically by a thermostat/thermisistor on the radiator and the water pump is gear-driven from the engine. If the fan's stopped working it's likely that either the thermostat or the fan itself has failed. You can test the fan by connecting the wires going from the fan to the thermostat together and starting the engine - if the fan runs, it's the thermostat that's the problem (it should be OK to run the bike like this, at least temporarily). If not, it's the fan (or both).

You can test the pump by removing the cover and rotating the rear wheel. If the impeller goes round, it's OK (although it's worth checking that the clip is still OK and that the impeller sits tightly on the shaft).