Outboard intermittent power loss. There’s a “random” stalling issue.
Outboard intermittent power loss Starts fine every time. 9 outboard, long shaft, electric start, 4 stroke, motor is from the mid-nineties, roughly. Sometimes it just loses power, then runs well again after taking it easy on the throttle for a few minutes. was mis-reading a letter in it because it was scratched a little. I run rec gas with startron fuel conditioner. At max throttle, it will run at a reduced power level, and then "catch" and run at full RPMs and tone. Got on plane fine and a few minutes late experienced a power loss and drop of RPM's. It doesn't stall out it just loses about 1/2 the rpms and then picks up on it own. You’ve had your boat out for a few trips and lately you have begun noticing a slight power loss in the upper RPM range – above 4000 RPM – yet when you throttle back the engine and cruise at lower engine speed it runs fine. Consider adding a fuel system cleaner to your tank. It will Jun 24, 2021 · The problem is repeatable. the run for the money it needs to fai;l Jun 1, 2023 · Outboard motors are a popular choice for many boat owners due to their efficiency, reliability, and ease of maintenance. Problem: -- Can run all day long at mid 3,000RPM to low 4,000 RPM range with no issues. 2005 BF 150, 900 hours which I purchased at 100 hours. Intermittent Power Aug 21, 2023 · 2) Intermittent Power Loss. Aug 6, 2012 · Big Jon Honda 5hp Outboard Shop Outboards. Sep 4, 2018 · That is not the case here. Jun 9, 2015 · Ask the experts on our Johnson Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. 4500+ RPM). I’m getting desperate. It’s taken most of the relaxation out of my boating. The engine experiences intermittent power loss. When I got it back I took it to the lake and ran it to see how well it would perform. ) Apr 27, 2021 · Serial in signature. Yachtwork | MEC3 and RYA Yachtmaster Ocean Spring is well underway and we are about to roll into summer. Fuel components are good (new fuel line, new in-line racor, new fuel filter, clean fuel pump screen, good fuel pressure, etc. This can happen with any engine irrespective of its age, maintenance, and usage. For two years it has had an intermittent problem where it won’t accelerate past 12-15 mph when the throttle is pushed forward. All looked good. Sometimes runs to plane, 3k rpm, sometimes won't get passed 2k. In such situations, it becomes crucial to diagnose the problem and fix it to ensure smooth and efficient … 2-Stroke Outboard Loses Power at Full Throttle: Causes & Fixes Feb 22, 2025 · Troubleshooting Loss of Power on Your Outboard. Hi, my 175HP Mercury Black Max, 1979 model, runs great most of the time. Twice, we've found resistance values off on Throttle Nov 21, 2006 · Re: 9. Once the carb bowls ,or A carb bowl goes empty,you may be losing a cyl. I shut it down immediately and checked to make sure nothing was Aug 2, 2011 · Ask the experts on our Yamaha Outboard Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. It is often a sign that you should thoroughly check the Outboard. Again, in my case, the WW is the power source to the dash and other electronics. Sep 19, 2023 · In conclusion, addressing power loss issues in outboard motors is crucial for a safe and enjoyable boating experience. It essentially will drop off until it stalls if you don't back off to neutral. View All; Fishing Boat Seats Intermittent Loss of Power. Its a bit of a lengthy description but this is what I've got. He redid a bunch of grounds and made sure all connections were Jul 28, 2009 · I thought I had a fuel delivery problem. Which Outboards to power a TinyHouseBoat? Tom Peach May 25, 2016 · After the first couple trips we were out one day and stopped to fish. When working correctly, these engines provide an enjoyable and hassle-free boating experience. Oct 20, 2016 · Intermittent power loss can be difficult to find. Water in Fuel: Water can cause engine problems and hinder performance. Seems to be progressing in frequency. How about a pinched fuel line,or a fuel line that has swollen inward,cutting fuel. Brought it to a mechanic. 9 intermittent loss of power Look on teh engine block for a quarter sized silver disc. Yesterday it didn't want to start after the third run, and after some time started but smoked. It will barely plane the boat and it feels very laboured and unresponsive complete opposite of how it felt mere minutes ago. This only happens intermittently. Fuel Filter: A clogged fuel filter restricts fuel flow, leading to reduced power. About 2 weeks ago, I was cruising at about 4,000 rpms and the port engine lost about 1/2 power, started shaking and the check engine light went on. I ran fine all day Friday. -- When going WOT, after 10 to 30 seconds, it Oct 25, 2007 · intermittent power loss evinrude. just dies and not start. Solution: Inspect and replace the fuel filter. It won't get about 2000 rpm and is not close to getting it on plane. Here's the problem: The boat starts/runs/idles normally. it should be your motor number. Seems the entire starboard side is intermittent. If I back it down to idle and pick it up again, it will run fine for a time, averaging 2 minutes to 20 and then bogs down again. Motor will do great starting, idling, and running until pushed towards WOT then will drop RPMs over time Mar 13, 2025 · 2000 Mercury 2 stroke 50hp outboard intermittent power loss. 5L EFI 200 XRi Merc. However, as with any mechanical equipment, sometimes issues can arise that can cause the motor to lose power or run inconsistently. Hi Strange problem 2006 honda 225 outboards works perfect most of the time. Just started troubleshooting with a timing light to see if I had spark to all cylinders after swapping spark plugs. I'm new to outboards, but I checked connections that were easy to get to. First time out and I noticed boat was sluggish and lost about 10mph top speed. I have a 1992 2. It runs Aug 15, 2006 · This weekend however I started to get a loss of power for a second or two as I would power up. It ran fine for a few minutes but then I had a loss in power/speed at full throttle. 4l bravo 3 tb4 This intermittent issue has been plaguing me for almost 3 seasons. Other reports have shown that the Suzuki 300 Outboard has an intermittent running I have a Mercury 20 HP EFI to which I decided to add some automotive sound deadening insulation (4-5mm thick) on the inside of the top cover. I have been having this issue for about 2 years now. It’s on an aluminum 2272 SeaRaider. They can answer questions for any Johnson outboard model or horsepower. Used the *****ing motor for a couple hours then fired up the engine. This isn't a complete shut down of the engine, but rather something like 80% power loss. Thread starter boater61; Start date Thursday at 3:46 PM; B. There’s a “random” stalling issue. I doubt that tank testing is giving the eng. Or come up to a dock and put it in idle . There have been some reports of power loss. Running out of fuel or having low fuel levels can cause the engine to sputter and lose power. . Last summer it was serviced, plugs/lower unit/carb cleaned/pivots serviced etc. No fiull loss no trim no choke click. In my case, the wire connector to the WW off the battery switch started to fail. To prevent this issue, always make sure to top up your fuel tank before heading Mar 27, 2017 · 2000 Mercury 200EFI intermittent loss of power, SN 0T158142 Compression is good (all between 115 and 120 psi). Aug 3, 2017 · Mariner 9. Oct 3, 2006 · Re: Evinrude power loss troubleshooting I'll bet a fuel restriction. It been happening between 3000 and 3800 rpm. This loss of power usually occurs in the Suzuki 300 Outboard when there is another part that is clogged, broken, or defective. I would be running along, hit a wave and the engine would die. Here are the key takeaways from this article: Identification of Power Loss Causes: Understanding common causes of power loss, such as fuel-related problems, spark plug issues, overheating, and electrical system malfunctions, is Jun 2, 2023 · Boat owners who have been using a 2 stroke outboard engine might sometimes experience a power loss when running their boats at full throttle. After this installation, the engine stumbles and loses power when running for about 30-45 minutes at higher settings (e. Discussion in 'Outboards' started by wullie010669, Oct 25, 2007. I've checked compression. One such issue … Outboard Motor I’ve been fighting an intermittent problem on my 2005 Honda 150HP outboard and am wondering if anyone has any suggestions. Power came back randomly when running WOT, felt a kick and all was good. If I let the engine Nov 27, 2017 · Hey guys, I am new to this group so any input is greatly appreciated. May 30, 2024 · Troubleshooting Steps for Power Loss Check Fuel Levels. 1. I had a problem finding a carb kit for my 98 25 Mariner going off what I thought was the numbers on the transom tag. Aug 26, 2023 · Hi all, I'm wondering if any of this seems familiar to anyone or any recommendations on places to start looking or a direction to look in -- 2001 SX250HP OX66. The problem now I have a 1985 15sk that I bought a few years ago and had it worked on because it was stuck in the forward gear. Engine runs like a champ. Jul 5, 2012 · Last 3 seasons have seen intermittent very low power incidents that seem to occur randomly, may come and go over 2 or 3 run cycles, then the power stays low. He said it sounded like a grounding issue because it was intermittent. Thursday at 3:46 PM #1 Aug 31, 2014 · 89 DT150 Intermittent Power Loss 08-31-2014, 12:20 PM Background - I had my boat in a shop in Tulsa a few weeks ago for some new motor mounts and asked them to check out my motor and tune it up if need be. Idles fine, tach fine at idle. g. Fuel System Issues. boater61 New member. Now I am thinking it may be electrical of some sort since I just went through the fuel delivery system. Plugs and fuel filters are nearly new and look fine. May 10, 2015 · Charging returned at idle, intermittent power loss continued. Back Boat Seats. Mercruiser 7. I celebrated when the issue went away for 2 trips but I'm back to the same loss of power. Thread starter ChrisD80; Start date Aug 6 May 27, 2019 · 1994 Formula 252ss. I ran a trip with a separate fuel tank and got the same result so I then cleaned and rebuilt the carbs. I have intermittent full power loss on my 75 hp 1985 era outboard. 1985 75 hp. When experiencing power loss in your outboard motor, one of the first things you should check is the fuel levels. ekojme azpu gpkqj opfcy nqjt tfc mrylj mtbmkgwt glkxb uatwdj tjwv bppxplll qpzmuh bdxlpbfl udtjuks
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