Youtube it. You have to buy one of the lower unit oil pumps that has a threaded end for your motor. I found mine at Walmart for around $5-10,don't really remember the price but it was cheap. Basically, put that on the pump hose then pump it up to the pressure you need. Then with lower unit pulled off spray your soapy water. Pump and all was around $10-15 total.
When you are finished, put the fitting back on the oil pump and you can still use it to fill the lower unit.
Edited by Bobby Milam (01/17/16 07:54 PM)