How to start twice an emitter? no explode and then explode

[Play's Zone]

I have one emitter that setups like this:

 

    var lifespan = 2000;

    this.__emitter = this.__game.add.emitter(0, 0, 500);

    this.__emitter.makeParticles('particle');

    this.__emitter.forEach(function(particle){

        particle.tint = this.logic.owner.color;

    }.bind(this));

    var shipSpeed = this.logic.getSpeedXY();

    shipSpeed.x *= -0.4;

    shipSpeed.y *= -0.4;

    var spread = 20;

    this.__emitter.setXSpeed(shipSpeed.x - spread, shipSpeed.x + spread);

    this.__emitter.setYSpeed(shipSpeed.y - spread, shipSpeed.y + spread);

    this.__emitter.minParticleScale = 0.01;

    this.__emitter.maxParticleScale = 0.2;

    this.__emitter.gravity = 0;

    this.__emitter.setAlpha(0.6, 0, lifespan, Phaser.Easing.Quintic.Out);

 

then I start it first like this:

 

        startEmitter: function(){

            var emitter = this.getEmitter();

            emitter.start(false, 2000, 25)

        },

 

end later

 

        explodeEmitter: function(){

            var emitter = this.getEmitter();

            emitter.setXSpeed(10, 10);

            emitter.setYSpeed(10, 10);

            emitter.explode(3000, 500);

        },

 

But the explosion doesn't happen. The emitter still emits at the same speed as set the first time, seems like the explodeEmitter doesn't do anything.