Re: Going to look at 115 1989 Mariner... opinions?
It is a Merc painted a different color.
4 cyl 2 + 2 design, the top two carbs have idle circuits, the lower two do not, so it idles on the top two only. There is an accelerator pump that gives a shot of fuel thru injectors to the lower cyls to assist coming on as the throttle is opened.
Once adjusted exactly as spelled out in the factory service manual, most won't even notice the difference in running on two or four cyl's.
The only problem with these are the motor mounted oil tanks, the float has a nasty habit of the adhesive failing to hold the magnet to the bottom of the float. When most fail, the magnet lands near the switch and sends a constant low oil alarm. However there are those rare cases where the magnet fell to one side, the operator never checks the oil, runs it out of oil and fries the motor. This problem applies to the whole series of motor mounted tanks, not just the 115.
Otherwise, it is a VERY solid motor when propped correctly and given regular care.
