Name:   CAT BOAT - Subject:   oil injection Date:   3/2/2014 9:04:20 AM

Don't worry so much about a problem that you don't or have not had.  You did'nt mention that you had an oiling problem before, only a lean issue that was probably corrected when you rebuilt the carbs.  If it were mine, being that it is a 2000 model I would keep the oil injection system on the motor.  In the early years of automatic oiling for two strokes the forthought was automatic oiling was a convenience for the customer.  A good selling point for sure, but not  well thought out mechanicaly.  Over the years the systems became and are more reliable as technology has improved and manufactures took notice of there somewhat self inflicted problems.  Mercury Optimax comes to mind!  (my favorite) Optimax fuel systems are pretty complicated when compared to older systems.  They have fuel injectors, air injectors and oil pumps.  You just don't see many catastrophic failures on the newer stuff.  Yamaha HPDI is somewhat of the same direct injection system.  These are good reliable systems.  A good way to do a simple test on the alarm system is listen for a "beep" when you first turn the ignition system on.  Although not 100% accurate if you hear the "beep" it's probably working.  When you replaced your powerhead, you should have noticed several "tan" wires about the engine.  Most of the time, the tan wires are for sensors so you should make sure you plugged them all back up.  The early OMC Johnson Evinrude systems went through a period where VRO did'nt mean Variable Ratio Oiling, we called it Very Rarely Oiling.  It was kinda a joke amoung us!  Sorry for the long reply, and if you ask 10 people this question, you will get 10 different answers.  Just ask the same 10 people one simple question-----  "What bases, or justification do you have for your opinion".  One other thing I want to ad to this thread is, when you have your boat serviced, or you service it yourself, remember to visually look over ALL of the oil lines and fuel lines closely.  Make sure they are not shrinking and starting to pull away from there attachment points and that they are ALL secure.  Most of the time, folks blame the pump when a simple line detached.  Something that should be avoided.   Hope this info helps in your decision. 

Steve

www.cathousemarine.com