FUEL PUMPS AND REGULATORS

The fuel pump that accompanies the motorbike carbs is often worth using. For instance, theYamaha R1’s electronic fuel pump contains an interrupter pump to stop the fuel supply when the carbs are full, so you don’t need a fuel pressure regulator. If you want to fit a new fuel pump, a cheap solution is a Facet pump and Filter King pressure regulator. Check the maximum fuel pressure for the carbs — the R1 is 3 psi. You will also need to fit an inline filter between the petrol tank and fuel pump and use 8 mm fuel lines throughout.