can some one explain to me what a fuel accumulator does?

 

the pretensioned spring behind the diaphragm in the fuel acumulator ensues that the holding pressure is maintained for a lengthy period of time.

the holding pressure largely prevents the formation of vapor bubbles in the fuel system. this will give a good starting properties on a warm engine.

some of the members complaint of hard starting when the engine is warm. this can be one thing to look at.