Help with water cooling, can i add a speed control switch

I have converted my scooter to water cooled and add a bosch pump to it.

what i want to know is there a way i can add a speed control/dimmer switch
to the pump to slow it down or speed it up.

if so what do i have to buy and were from [:)]

 

cheers

del, uk

hiya

the gold 12 volt bosch heater pump, same as what sips are selling

 

cheers

how was the convertion? do you have a complete parts list? i want to do this to my lml 200cc engine.

thanks.

help, anybody please [:^)]

Hi Dude ..

can you tell me exactly what pump do you use ?