Boat Engine Runs Rough, I've been told rough idle is the nat
Boat Engine Runs Rough, I've been told rough idle is the nature of the beast and is common for all Mercury 2-strokes as they are optimized for riding. God morning, I have a 91 Malibu Skier with a 5. You should contact the DMV or DNR or whoever registers or titles boats in your state and ask them how to obtain a title and registration. It only starts to have problems it seems when the engine war 1985 3. If I throttle down at all, the boat will start surging and running very rough Preventive maintenance can help avoid many common engine problems. Water in Fuel: 20 ft Trail Rite Boat Trailer, dual axle, brakes, good tires and wiring. A third possible cause of a rough-running marine engine is a faulty ignition system. In this guide, we’ll explore some of the most common outboard engine problems and provide tips on how to diagnose and address them, ensuring you can get back to enjoying your time on the water. Will Run 5300 Rpm. Category: Boat Maintenance | 8 Min Read With the advent of solid-state ignition, fuel injection, and a host of other technologies, outboard motors in 2025 are more reliable than they’ve ever been. Oct 13, 2025 · 2026 IHRA Outlaw Drag Boat Racing Series schedule! Hopefully at least a few more are added, it's a starting point though! May 17, 2018 · Discussion of boats, general boating questions and anything else directly related to a boat or an engine. Mar 5, 2007 · Re: boat won't shift into reverse If you did not adjust the cable with the drive off per the OMC service manual you have probably ruined that lower unit. Interior is rough. 20” shaft, functional tilt and trim, all coils have been tested and are working, engine runs but runs rough. Compression values are as follows: 1: 100 Shut down the engine if possible, deploy appropriate safety equipment, and contact emergency services if necessary. Expert troubleshooting guide for outboard, inboard, and diesel marine engines. Our guide identifies spark, fuel, & mechanical causes. I Kill Each Cylinder Individually And It Runs How to fix a rough running four stroke outboard Willamette Valley Marine 6. I am going to check the timing and change the spark plugs again, as they were completely black in color. Because it is flat it produces the least amount of drag (as compared to any v shape) and once on full plane you are close to if not competely running on the flat surface. net, John will show you where to start if your outboard dies when it’s at idle. Then you Dec 4, 2009 · Re: Bass Boat "Pad"?? You are talking about a hull pad which is a flat portion of the hull at the transom that improves the top end speed of the boat. has 650 hours on it. Fair enough but what's the root cause of rough idle? (assuming all components work as This Started The End Of Last Season. I have a 2002 J50pl4st fuel injected 4 stroke. Routine Inspections: Perform regular inspections of the fuel system, cooling system, and electrical components. The engine still idles very rough and shakes when below 1000rpm but seems to run smoother above 2000. oil changed and plugs and fuel filter about 2 months ago. The ignition system is responsible for creating the spark that ignites the fuel and air mixture in the engine, and when it is malfunctioning, the engine may run erratically or fail to start altogether. If you have th flip up rubber plug type, you might need to tighen the plug to that Mar 8, 2011 · Re: Do I need 4x4 to lauanch boat? Re: Do I need 4x4 to lauanch boat? If you get a locking rear end and are careful a 2wd will handle "most" ramp situations. Apr 1, 2025 · Troubleshooting a Rough-Running Outboard Engine: Tune Up Tips Written by: Gary Reich on April 1, 2025. The engine would cut off at idle. Conclusion Understanding how to diagnose and address common boat engine problems empowers you to handle many issues that arise on the water. Is it normal or excessive? What kind of plug do you have. Also, am I wrong to think that the garage will have to be 24 ft whether you enclose the boat part or not? One thing to think about would be to make the garage length longer than you need for the current boat and put a small roll up door on the side to store lawn mowers, etc Sep 21, 2010 · Re: power loading your boat Yes. Did you adjust the end at the transom plate or did you just start moving the adjustment on the engine? The RED shift cable that comes thru the transom must be set to a specific measurement at the trunion on the top of the engine. Good gauges, Rough running above 4000 RPM may indicate carburetor tuning problems or fuel delivery issues. When I first leave the dock the boat runs smooth at idle speed. Powerloading is bad for the ramps and is generally frowned upon. . I taped the primer bulb in a almost vertical position and the engine will not even plane the boat it is running so bad, When i lay it down horizontal in the well it runs fine but will still stall at idle more often than not. If I throttle down at all, the boat will start surging and running very rough 1985 3. While pulling my son on a tube, the boat started running very rough and does not have full power at max throttle. When I give the boat more throttle it will get up and go to wide open throttle. RepoFinder - Free List of Bank & Credit Union Repossession Sales. Sep 4, 2025 · As a 15-year marine tech, I explain why your boat motor is running rough and how to fix it—real tips from Florida repairs to smooth your ride and save cash. Today, we ran a gas line to 5 gal can of new clean gas A very common reason that outboard motors run badly is from dirty in the carburettor (s). Jan 26, 2025 · Troubleshooting Outboard Rough Idle Problems: 1. 45K subscribers Subscribe I have also talked to two separate Marine Mechanics and both seemed perplexed why it would overheat in rough waters as opposed to smooth. I believe there are some tidal saltwater situations where it couldn't possibly affect the ramp more than mother nature already does where it acceptable to powerload. The rough idle stops after warming up for a about 5 mins. Comes with 18 ft Seaswirl open bow boat. there actually already is a piece of wood inside the transom it looks "stock" but in good strong shape, the problem is outside the transom, it looks like someone at one time had a motor that was too heavy and it dented/folded the transom a tad. Is it the carbs? Any help appreciated. Smoother At High Rpm. Offering the biggest range of pontoon boats. 0 liter mercruiser. We got it restarted and made it to the landing. When your outboard will not throttle up, there’s plenty you can do to fix the most common issues and improve performance once and for all. Shakes And Runs Rough Off Idle And Up Worst At Around 3000 Rpm. I know of some ramps that a 2wd is fine and some where a 4wd is required. it does of course make for a more skittish handling and bumpier ride. Fuel System Issues Dirty Fuel: Solution: Use a fuel stabilizer and run the engine to burn off the old fuel. I have Mar 21, 2005 · Re: Getting a title for a old boat that was given to me. A very common reason that outboard motors run badly is from dirty in the carburettor (s). <br /><br />Consider that a boat given or sold to you without documentation may be have been stolen at some point. Outboard dies when idling? Outboard won’t start? In this video we walk through 2 ways to fix idling issues in an outboard. It really depends on the ramp, how deep you need to launch and the surface conditions. Follow these tips to keep your engine in top shape: Regular Oil Changes: Change the oil and filter regularly to keep the engine lubricated and running smoothly. Knowing why an outboard idles rough is only the beginning, here is what you need to do to figure out why and how to Jun 6, 2025 · Learn to identify and fix common boat engine problems. so it seems that putting it outside would better distribute the weight and take it off Nov 26, 2007 · Re: Boat garage ideas Advantages to inside are less problems with mice, and people wanting to do harm to your boat. Ive been having problems with my boat this season, Ive figured out that the boat runs fine at idle and even when I keep in in the neutral position to rev it up. This can be from water or other contaminants in the fuel, perished fuel lines breaking up and putting debris into the fuel or varnish from fuel that has evaporated after the engine has been sitting for a long time. I started it I have a 25 Yamaha 25FS that runs rough at idle aand sometimes at speed it is real jerky, ill let off the throttle a little and it will speed up just a little momentarily and then slow down. Same for the trailer. I have a 170 HP and it was running perfect. Hello All, My 90 ELPTO is quite rough at idle, even stalling occasionally. Also, the boat is a 2005 Trophy 1903 CC and the engine is mounted in the exact same place it was mounted when new from the dealership, in the 3rd holes from the top. Rebuild the water pump to prevent overheating, which can cause engine shutdown. But just like any machine, outboard engines can sometimes run into problems, leaving boat owners stranded and frustrated. Oct 13, 2009 · Re: My boat is leaking. 140-145 Compression In All 4. Are you having trouble with your boat engine? Read on to find out about the most common issues and what you can do to fix them yourself. A rough idle on an outboard is generally caused by a failed spark plug, a clogged or stuck open fuel injector, a clogged or dirty carburetor, or an engine that has an issue with the timing when dealing with a 2-stroke outboard. May 8, 2010 · Re: old jon boat transom reinforcement thanks for your reply. It is a rubber plug with the Flip ring on the end? I use a rubber plug that you tighten the T-handle up and I have very little leak. Pontoon and tritoon boats from Godfrey represent everything that family boating is all about. Consider adding a fuel system cleaner to your tank. Prop Good, Carbs Rebuilt, Fuel Pump Rebuilt. Re:02 Yamaha f115 tlra 4 stroke rough idle and stall I am still trying to figure this out. Has GM V6 Engine which runs but has a knock. Shut down the engine if possible, deploy appropriate safety equipment, and contact emergency services if necessary. 1995 evinrude vindicator 200 2 stroke outboard. I've never had a problem before but today it has started to intermittently misfire and lack power and even had check engine light up solid plus the buzzer. Shop credit union owned Cars, Trucks, RVs, Boats, ATVs - Shop Bank Repos Now A rough idle on your Mercury outboard engine could be caused by several factors, from dirty fuel to worn spark plugs to an issue with the carburetor or engine compression. 7L V8 350 mercruiser engine. The boat starts right up every time when cold. One hte water for only a few hours, unless water is brought into the boat, I have almost no water. Starts And Idles Okay. Dec 15, 2025 · Engine Misfires and Runs Rough: Ignition or Fuel? Discover why your engine shakes and fix it fast. I have seen some 2wd owners carry a set of traction mats just in case. Clogged Fuel Filter: Solution: Inspect and replace the fuel filter. What do you check when your outboard idles and then dies? In this short video from Boats. uymlp, mowlfj, khsfwl, 554lg4, mshi, ulvhbq, otik9, goboo, 9diob, bm7gx,