I recently purchased a '99 Optimax 200HP. I've been running premix since the oil pump gear on my previous outboard went so I've got about 40 gallons of premix left in my tank. My question is. Once I have the newer engine installed what do I need to do to disable the injection system and alarms on this engine. Once I get the tank to about 1/4, I want to enable the injection system and alarms again. Any help or advice is appreciated.