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    • Outboard Motor Sputters At Full Throttle

      he boat condition. A four stroke has more parts to break. The PCM may not realize the throttle is at idle, and may give the engine too much or not enough fuel causing it to stall. I can also hear it spitting and sputtering a bit. We've replaced the fuel filter housing, fuel filter and the quick connect to the gas tank. A significant difference in the readings can help pinpoint a problem where there is no other easy means to do it. My idle was so bad it started dieing on its own. Check While RunningIf your marine engine is sputtering, use a timing light to check each spark. The next most common reason that an outboard motor won't start, or sputters to stop at a most inopportune moment, is a problem with the fuel flow. 2-3 trips later, the problem started coming back with a vengeance.




      after cleaning the carbs and replacing the fuel lines and cleaning the tank. PROPELLER - Engine speed varies according to the propeller size and t. Went for a test run, there was no whine and it went up to WOT smoothly, pushing the boat pretty good. Even though the key is off, the engine won't stop sputtering because the throttle plates are opened up enough to still pass a little fuel and air. The 2-stroke registered 72 and 77. e carburetor. Again, this is especially true with fuel that isn't high enough in octane. American Motors Company sold a handful of gas outboard motors in the late 1890s, and in 1905, Cameron Waterman filed a patent application for a Boat-Propelling Device, marketed as the Porto-Motor. After the first time it refused to run over 3000 rpm I added 8 ounces of Sea Foam, 3 ounces of Startron by Staybrite, and have replaced both fuel filters. I'm not going to give up a month of summer boating for yet another one of Mercury Marine's problems. Loss of power, backfiring, not sure what to do. The first topic here is a fishing attempt for the advice of more experienced folks on the idle speed of a 15hp 2-stroke Johnson. I have a 65 HP 4 stroke outboard mercury motor and need to. Please advise me on what the real symptoms of lean vs rich system is.




      The problem is at full throttle opening. The more the octane, the less volatile the fuel. I was out this weekend and when I was on plane running around 4500 rpm everything was great. 1) Engine operates normally under less than 3/4 throttle indefinitely 2) After a short burst of full throttle it shuts down and will not re-start for a short period Chain of events: 1) Engine is operated at less than 3/4 throttle, fuel flow and/or cooling water flow is sufficient - engine operates as normal. The Mariner 3. I sent it to a small motor repair shop. I had to be towed in. plane off the motor. Engine sputtering or stalling. Torqeedo 1003 Electric Outboard: After testing Torqeedo outboards for five years, we are believers in the product. I'm not going to give up a month of summer boating for yet another one of Mercury Marine's problems. I've been having problems out of my 1995 Mercury outboard [accelerating under load]. If you are sputtering in a high, mid, or low range, this can mean that a passageway in the carb is clogged. We have been through the fuel system and there are no leaks. Then, turn the idle mixture screw slowly clockwise until the engine begins to slow.




      Outboard motors have more thrust than the 403, so in a worst case scenario where you are up against very rough seas, the gasoline motor is more likely to get you safely back to shore. After leaving drop #2 it did the same thing. If you are sputtering in a high, mid, or low range, this can mean that a passageway in the carb is clogged. Once the engine starts, hold the throttle at 2,000 rpm's. It will cruise all day at 1/2 throttle but it shuts off about 75% of the time when I try to move it from 1/2 throttle to full throttle. I have a Suzuki 4 stroke 40 HP outboard motor that sputters while in full throttle. The motor will run for about 10 secs then dies. The problem is that when I give it full throttle it doesn't take off like it used to. 0HP Outboard Motor 4 Stroke Water Cooling and Air Cooling Advanced Boat Engine for Small Fishing Boat Three Improved Version at Amazon. Idle is fine but when I [rapidly increase the throttle the motor] has no power and dies down.




      Do not continue cranking. Well he went out fishing yesterday and after power up from the dock it sputter briefly at the throttle up and cleared up and was fine. I know nothing about boat motors, but I did notice that the fuel ball (from the gas tank) was not tight when the boat motor cut off. If one observes the throttle plates while attached to the throttle shaft, the throttle plate will appear as two hemispheres. However no matter what I do she will not run below around this 50% throttle setting. The electric start, as well as forward and reverse gears, make this motor simple to operate, and it offers low emissions to protect those natural resources. Go fishing for a half hour restart the engine and cant get full revs on the way home?. It will idle fine and rev up without issues. outboard motors range from 2. 5hp 1960 Outboard Motor Part Throttle Arm Model 574-6007 See.




      So basically it WILL NOT run without full choke, and even with full choke on I still can't ride the thing because as soon as you give it throttle with full choke on it will stall, I guess it gets flooded with gas. At first I thought it was a throttle cable issue, but when I pulled the cover off everything looked tight and hadn't moved. The 2-stroke registered 72 and 77. Motor runs very nice, was maintained, and last it ran their were no issues-not even a sputter. Turn the screw in the opposite direction until the engine again begins to slow. Restarting after partial cool down typically results in better performance. I recommend cleaning your carby the old fashioned way. Last week after a day out I was on my way in on full plane and wide open the engine started to lose power and stopped running. I was cruising at about 4000 rpm for a couple minutes when it just started bucking and sputtering, then died. A typical new midsized outboard (90 to 115 hp) will cost you at least $9K if purchased from a discount dealer, and more like $10K+ if purchased from a local full-service dealer. SoI decided to change the spark Plugs and fuel filter. Remove the outboard engine quick-connect from the outboard. engine is cold. For pit bikes with smaller cc displacement engines, in order for a cylinder to fire efficiently, three separate components must work together; the fuel delivery system (carburetor), the ignition coil. Also, the adjustment needle, once you have it adjusted, leave it alone.




      It's highly recommended to follow the idle mixture adjustment procedures in the factory repair manual. Outboard engines are popular in small watercraft because of their light weight and wide range of size for both low and high power applications. It will idle fine, but at full throttle it is only running about 30% of the rpm it should (guessing). The next most common reason that an outboard motor won't start, or sputters to stop at a most inopportune moment, is a problem with the fuel flow. 5hp 2-stroke outboard made in china run faster than 60 lbs electric trolling motor at full throttle. The decibel scales I looked at on the web put 70 to 80 dB in the range of a busy street to a vacuum cleaner. The motor would spit and sputter randomly. 2) Use vacuum gauge to check. Shop our full collection of w accelarator spidolite pvd in stock on the internet. Torqeedo 1003 Electric Outboard: After testing Torqeedo outboards for five years, we are believers in the product. I think you may be confusing that speed range with the 403.




      It cranks right up with no problem. Mercury Grand Marquis Throttle Position Sensors May Fail and Cause Engine Performance Problems - 76 reports. MIKE GOODMAN Grayslake, IL. 3) Choke pull off setting incorrect. Before I used the boat last week the cranking battery was dead. I have a 1997Evinrude 115 HP 2-Stroke motor on myStratos. Quick and Cheap Outboard Motor Fix. Mariner outboard 15 hp manual 2-stroke. After this the engine won't go over 3000 rpm no matter how much throttle is added. The 2-stroke registered 72 and 77. The motor runs and throttles up fine. View and Download Mercury 200 Verado FourStroke operation, maintenance & warranty manual online. Engine Continuously Blows Power Packs/Switch Boxes:. It does not.



      If your 2004 Jeep 4. It cranks right up with no problem. You may need to make a few timing adjustments or replace a spark plug, or you may need serious mechanical inquiry. If I gave her a little more and got up near 5000 rpms the motor would bog down and start to sputter. Things that have been suggested from bar stool Merc techs: fuel filter, fuel pump, fuel line/primer ball. 6 hp outboard motor. If the engine sputters or races when you release the throttle, the idle needs adjusting. Another symptom of a faulty accelerator pump is engine sputtering or stalling. Replace the air cleaner assembly and start the engine for final carburetor adjustments. How can Yamaha charge full price for a motor that is flawed. I also noticed the tachometer bouncing on me a few times. 5hp four stroke motor is superb, its a quietengine, very economical, much quieter than the honda I had recently… Read Full Review. So, any motor yacht owner really needs to be aware of the common problems with outboards that are not starting, or running properly. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions.



      Another symptom of a faulty accelerator pump is engine sputtering or stalling. The motor would spit and sputter randomly. does anyone know what temp this motor should be at at full. I was able to get it back running after several pulls and I was off again, but it soon died when I put it back at full. hobbyfarmer85 257,975 views. After this the engine won't go over 3000 rpm no matter how much throttle is added. Electric Outboard Engines. After the engine starts launch the boat into the water and open the throttle to the full open position. 1990 Johnson 50 HP sputter at full throttle #2 Quick fix for outboard throttle bogging down - Duration: 6:47. At 75% powere 1 and a half hours. How can Yamaha charge full price for a motor that is flawed. As I needed to get back I reved the engine and quickly put it into gear full throttle. Shop our full collection of w accelarator spidolite pvd in stock on the internet. This time I'd say I was on full throttle ~5-10 seconds while stationary.