how to check used optispark?
WTF?!
Then after a visual inspection looks good and you loctite the rotor screws, put it back together and stick it on. Tighten the 3 mounting bolts and hook up all the wiring. DO NOT proceed further like putting on the water pump etc. Fire up the car and see if it runs. Let it idle and even give it some throttle and see what happens. It won't hurt your motor to run it for 30 seconds with no water pump. I always test an opti like that before putting the car the rest of the way back together.


