Every service is important regarding your boat. By logging in, you agree to follow the current of our forum. Replace spark plugs as needed. If so, it needs a new electronic ignition box. X2 but it sounds like the lower water housing is scared scratched and it is not letting the water impeller spin fast enough not creating enough water pressure to pump into the block cooling off the head! It wouldn't start one day.
If there is a carb kit avaialble probably get that. I cannot find any info on a an '85 4hp. Mercury Marine changes the boating industry. Is your current harness a mercury harness or a after market? Perhaps this is a clue???? Have you checked to see if it is firing when you can't get it to start? They clearly say Mercury on the cover. I want to see what you guys think might be the problem here. You are not entirely sure how old the fuel in your can is so it would be sensible to get some you know to be fresh. It just sets there and cranks.
With financial assistance from his father and some townspeople, Carl Kiekhaefer purchased the factory and began deciding what to produce. The stator is kinda an issue with Mercs but the usually will run at idle then the high speed craps out and it does. If this is your first visit, be sure to check out our Section. Mercury has always made good anchors for a mooring buoy. Tried the blue, gray, white and a few others and nothing, can some one help me out here. Sounds like it could be something like a fuel pump problem.
To satisfy his curiosity, Carl Kiekhaefer made modifications to the inventory of engines received with the newly acquired company. I would suspect an electrical problem, based on what you said. I had a yamaha vmax 150 do the same thing as yours! I tried spraying the motor with water proofing lubricant but it does'nt seem to work. From basic maintenance and troubleshooting to complete overhauls, our Mercury Outboard manuals provide the information you need. See Flushing the Cooling System.
For further information on how we use cookies and how to change your browser settings, please read our Cookie Policy. See Steering Link Rod Fasteners. Vintage Outboard specializes in replacement parts for Mercury, Johnson and Evinrude outboard motors built from 1955 to 1980. Could be the gas bulb too, check that out. Thats just a couple of fuel issues, then there are countless electrical issues.
With over 40 years of experience we feel uniquely qualified to help our customers. All else fails call them at one of these numbers on this page. It's a 4hp outboard mercury two stroke that has some strange behavioral problems. What age or serial number? Late 1940's progress necessitated more space for the Kiekhaefer Corp and a new manufacturing facility was established at a Fond du Lac, Wisconsin, dairy farm which eventually became the Kiekhaefer Corporations main headquarters. In 1938, the Cedarburg Wisconsin plant, which made outboard motors, was about to fold.
The Kiekhaefer Corporation redirected it's efforts to defense contracts, designing and building lightweight engines for chainsaws, compressors, generators, etc. Isn't what Mercury requires the only thing that matters? Like this morning, I went out and started the motor just fine on the first turn over of the key. Low prices, super low shipping! By joining our free community, you will have access to: » Interact with over 2500 other boating enthusiasts! We know your motor better than anyone! Came home, got a new impeller and gasket and installed it. How new should the fuel be? Any ideas at all what might be the problem here? But even if it is not the oiler I would definitely take it off and start mixing the gas and oil! Please help what do you think could be wrong with this motor. The pros would do this as one of the first checks.
Does it always start cold and not start after running? Shops just make me nervous. But has always been dragged out quickly and has worked afterwards. Just my 2 cents used. I think I'd do a thorough carb clean. The spark gets very weak, it can be seen but it is not regular and too weak when under pressure. The dealer isn't warranting the motor. You are responsible to view our guidelines before logging in and using our forum.
Up till the last year of so I would be on the water at least 5 days a week and put it in lots of tournment use. These items should be serviced by an authorized dealer. Check more frequently when used in salt water. If this has happened you need to have it cleaned out or you run the risk of much bigger more expensive problems. Clymer Mercury Outboard manuals are written specifically for the do-it-yourself enthusiast. If I start it every day I don't have a problem its when it sits for a long time and I try to start it the problem appears. It sounds like the oil alarm, There are two wires coming out of the bottom of your oil resevoir, under the drivers side, unplug the wire and replug them sometimes that will stop the alarm, if not make a mark on your oil resevoir, run the engine and see if its using oil.