zip sp heating up qick

i just rebuilt my bike after a holed piston it started up fine but when i leave it to warm up 4 lights go on if u about the zip speedo u it used to go up to 1 when warm it not leaking coolant how can i check if the water is work our could it be the oil pump

 

did you air bleed the head after the rebuild?...could restrict the coolant flow with an air lock