2 stroke outboard bogs at full throttle



php?412319-Mercury-50-1987-bogs-down-when-full-full-throttleSep 12, 2013 Default Re: Mercury 50 1987 bogs down when full @ full throttle. You need to turn the mixture screws outward CCW an additional 1/4 to 1/2 turn to richen the mix of fuel/air to prevent the engine from running too lean Like the title says, 1999 50 HP Merc 2-stroke losing power at wide open throttle. Oct 29, 2016 Fixed this problem with mine, by purging all the fuel out of the system and tank and refilling with zero ethanol fuel with the proper mix of two stroke oil and a small dose of fuel system cleaner. In neutral with the cover off, you can rev manually and you can put at full throttle without out any issues, apart from a minor slight bog down before going to high The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. marineengine. I guess it would be better to use Nov 8, 2007 Two stroke motors are VERY touchy in the tuning process, if they run too rich, they bog down and quit. i have set those so that it idles nicely. Anyway, I had the motor wide open to see how she was running and we were just going to cruse Lets just get a few things clear, you say it runs fine at 1/2 throttle continuously? but then bogs "after a few seconds" after opening to full. I had my boat out on Seneca on Friday with my cousin. If I let off the throttle it would come back to life and then run fine if I accelerated gradually. Maybe Oct 29, 2016If I gave her a little more and got up near 5000 rpms the motor would bog down and start to sputter. . You need to turn the mixture screws outward CCW an additional 1/4 to 1/2 turn to richen the mix of fuel/air to prevent the engine from running too lean Apr 2, 2016 Once I hit the choke and it jumps past the part where it wants to bog down and I give it more throttle, it will run like a new motor from about 8mph to WOT and wil i had the same issues with my 2011 yamaha 90hp 4 stroke , its from water in the fuel causing the issues , check the high pressure system screen. Now runs perfectly. 25 uit from all in. Apr 2, 2016 Once I hit the choke and it jumps past the part where it wants to bog down and I give it more throttle, it will run like a new motor from about 8mph to WOT and wil i had the same issues with my 2011 yamaha 90hp 4 stroke , its from water in the fuel causing the issues , check the high pressure system screen. Now you need also consider this, for a 2 stroke outboard, any time that your engine is running lean on fuel, it is also running lean on OIL, they won't run very long at all with lack of oil, and the only oil that Do you have any of these symptoms on your carbureted 2-stroke engine? :confused: - Low revs in water with throttle all the way on - Okay revs out of water, but low revs in water - Bogging when going from idle to full throttle - Surging of revs - Intermittent or sudden cutting out of engine when at speedThis should be about perfect for the fuel mixture to help the engine run at full throttle. issue: outboard motor (75hp mercury tracker -- 3 cylinder, 2 cycle) cranks, run well for several minutes at full throttle, then dies (or sometimes idles if i pull back the throttle when i hear the engine losing power). Last time I had my boat out, it was very reluctant to start (usually starts on 1-2 pulls). When this I was under the impression that the 2 stroke had enough oil in it that ii would prevent rust. The idle mixture screws are at like 1. It took a couple of trips around the lake before it finally took full throttle with bogging just a little. Usually that is the symptom of clogged emulsion tubes (aka main nozzle) - the small holes on the side of tube get clogged by tacky dried two stroke when the carbs stood I have a 1993 Yamaha V4 2 stroke motor premix on a 19' Proline DC. if they are too lean, they will over-power again, and turn it out two and a half again, prime it, and loosen the screw 1/4 turn at a time. Message 2 of 5 (4,981 Views). Now it max's To diagnose this problem on the water hit the choke when it bogs down, if speed picks up the carbs are clogged. My dad discovered that if he taps the Could I spray some carb cleaner around the carb flange like you would on a 4-stroke to see if it's sucking air there without damaging the motor. Mercury 50 1987 bogs down when full @ full throttle - Marine Engine www. When I did get it started, it too would bog down when I gave it gas. After reading this thread, I pulled the plugs last night and both were Sep 12, 2013 Default Re: Mercury 50 1987 bogs down when full @ full throttle. May 7, 2013 When you put the throttle down in gear to try to get up on plane it bogs down and will die. hi I'm just guessing here, but does it have a power slide in the exhaust like 2 stroke dirt bike. i . Aug 13, 2010 i'm still receiving my education in outboard motor troubleshooting, maintenance and repair. BUT when I give it throttle in gear I only get about a quarter rpm with my throttle control all the way down. Without a vented outboard tank you'll experience intermittent engine shut-downs, and the bulb mysteriously imploding phenomenon lol. once it starts, it should promptly die when you try to give it throttle. Finally had a bit of time to get it out, need to get it out more often especially since I am going to be taking it up to the 1000 islands on a family vacation. com/boat-forum/showthread. Things Approximately half throttle, it bogs a bit and seems to not be getting full power. If not try adjusting it back Yes you can crank motor and it runs great at lower RPM's but you give it gas and it bogs out. this 75 horsepower johnson/evinrude 3 cyl bogs down or dies when throttle is opened, runs and idles fine on "hose". I stored the Give it the full throttle and she'd bog down because it was crushing the inner membrane