A friend of mine (yes, it really was a friend and Im not just trying to cover my goof) recently ran his 1998 115 Johnson V4 at idle for 20 min to charge the boat battery with no water muff hooked up. Next trip to the lake the water pump wasn't moving much water and the engine was overheating...
My friend has a 2003 60HP merc that bogs down and sometimes shuts off when the throttle is advanced from idle to full quickly. (pulling up a skier) If the throttle is advanced slowly it does fine and it runs perfect once it is at full throttle. We have changed the plugs and cleaned the carbs...
On my last fishing trip my '98 9.9 wouldn't run unless the choke was on. When I would cut the choke off the motor would run normally for whatever throttle setting I had it at for a few seconds and then die. This problem comes after a few years of the motor running fine up to 3/4 throttle and...
