Posted 28 May 2012 - 07:52 AM
OK....I have 3 bikes with autolube - 2 Yam's and a Suzuki. First, I have yet to hear that the pump actually has failed. Yes, you could let the tank go empty. Yes, you could somehow have the pump control cable somehow become inop. and have no oil flow. Having said that, the actual forces that the pump cable operate are so light, that unless you're a total goober and let the cable rust through, they last a lifetime. Be warned! Some Suzukis will damage main beaings using premix without splitting the cases. There is an oil "sheild" or deflector thats on the inside of one of the main bearings. Oil is injected to the main bearing on the other side of the bearing. The deflector holds the oil in the bearing a little longer before it gets pulled into the intake flow. So, if you rely on the oil in the intake charge to lube the main bearing, it won't get as much lubricant because of this deflector. This deflector can be removed but you gotta split the cases. I guess for me, unless there is something wrong with the system (pump missing or corroded, cable missing or unavailable, oil tank broke and unavailable), I'd use the system. If you DO remove the system, you should probably go up one size on the mail jet to compensate for the oil content in the fuel mix. As to what oil? Good question! I spent SEVERAL hours recently on TT trying to find suggestions for injection oil and decided on Lucas semi-synthetic although several TT'ers were happy with the Yamaha injection oil. You can do your own research but be prepared to spend some time reading old threads. One thing mentioned a couple of times that made me avoid certain oils is the tendency to form surface rust (like on main bearings!) during storage months and since I'm in Minnnesota, thats AT LEAST 4 months sitting in an unheated area.