I have a 1988 75 horse 3 cylinder that for the most part runs great. But sometimes for no obvious reason it will start running rough and dying than hard to start. What I notice is that gas will start leaking out at the same time it does this. Not sure but it sounds like a float that is getting...
I have a 1988 75 horse Mariner 3 cylinder. It will push my boat to 34 mph. All of the sudden it wont go past 4100 rpm at WOT. It idles ok and revs up when in idle but just gets a point and wont go any faster. The gas is fresh and the spark plugs are new and I also have a water separator...
I have a very weak telltale stream after I changed my impeller so I took out the t-stat to see if that was the problem. The stream was much stronger with the muffs and hose. The t-stat has no corrosion on it and I was wondering if it is still good. It’s in the closed position but all of the...
I just changed the impeller on my 2008 50 ELPTO but the water stream is still pretty weak coming out of the pee hole. The motor is still cooling but I don’t think the stream is strong enough. I cleared the tube of any obstructions but I don’t think the pressure is what it should be. Any thoughts?
After a three day trip my battery died on the third day. When running at WOT the battery only showed 11.8 or less volts. The tachometer only works intermittently but stopped working all together so I figured it was the stator. I disconnected the battery and checked the stator wires and got 700+...
My tachometer on my Tracker pontoon with a 2008 50 horse mercury 2 stroke isn't working. I ran some current tests and it has power and ground and it's getting a signal from the motor. When the ignition is off it shows about 400 rpms, when I turn the key the needle drops to 0. I know the stator...
I just bought a pontoon with a 2008 50 horse Mercury but the tach isn't working. I have read several posts about a bad rectifier being the problem. Whenever I put in the serial number 1B712561 it comes up not found. I can't check for the part to see what it looks like or to make sure I'm...
When going across the water in my 75 horse Mariner I started losing power. I noticed that the primer bulb was totally flat like plastic bottle that someone sucked the air out of. Any ideas about what is going on?
I have a 17 foot Tracker with 3 batteries. Right now I have 2 in the front at the bow and 1 in the back. I was wondering if it would be better to have all 3 in the back of the boat.
Can anybody tell me the max spark advance on a 1988 75 horse 3 cylinder Mariner. The manual I have says 2 different things in 2 different parts of the book. When I set the timing, do I set it at less than what the manual says or right at the number?
Took my Tracker out last weekend to run my motor and it ran very well. But I noticed on a long run at wot, the motor started running a little rough and cut off when I put it in neutral. I noticed gas dripping from under the cowling. I detached the fuel hose, started it up again and it ran smooth...
I have a general question about my primer bulb. When I am about to start my 75 horse Mariner for the first time of the day, how hard should I squeeze the primer bulb. I was told by someone that I shouldn't get it as hard as I can but firm enough to get fuel in the carbs. Does anybody out there...
My 75 horse Mariner will start to run rough after a long run across the river or lake. It starts to slowly lose power and will shut off after I take it out of gear. When I detach the fuel line it will start back up again and run fine. I also noticed when I winterized it it ran smooth as silk...
