I just puchased this motor, it's oil injected. My question is do you guys trust the oil injection? I asked the mechanic there, and he said alot of guys still mix there fuel about 100.1, just incase it fails you still have some lubrication. What is the best way to test these units to make sure they are functioning properly? This is my first motor with oil injection. Or do you recommend just doing away with it all together? Model number on the title says 150pro, I don't think that is right so i will double check that. Its a 1993 Yamaha Pro V 150.