Yamaha 115 bogs down when accelerating Also the injectors have tiny screens in the top of them that can clog. Took the boat out a couple of times this weekend and the performance is improving. I have a 2005 Yamaha 115hp 4 stroke motor that has been sitting for 5 months. I have a 1998 Yamaha 115 outboard 2 stroke that runs great on dry land. It's an expensive job. If you can slowly play with it and get it past that spot it runs fine at high rpms (just getting it to that point is the issue. Starts up, idles. ShaneMc. Screen in VST was 2/3 clogged with trash but rest of system was clean. Sep 10, 2002 · My 60hp Mariner 1984 will start and idle ok but dies whenever I advance the throttle past 1/2 way. The problem: Bogging/stalling as soon as throttled up past idle speed. Changed plugs, 3 and 4 were gas fouled. Customer: My Yamaha 2 stroke wave runner will idle, but bogs down when accelerating and will only travel at low speed. It runs good to about 2500 RPMs. it still had power and throttled up nice with some deaccelerate popping. If you rev it May 27, 2017 · 2014 Yamaha fuel injected 40hp with 35 hours. In gear, with full throttle the engine would not go above 2500 rpm. Hello everyone. Gas EZGO: Bogs or Hesitates Mid Throttle 2002 G-16: Gas Yamaha: Bogs down when accelerating: Gas Yamaha: g-16 bogs down at 10 mph and up? Gas Yamaha I have a 1999 G16 gas cart. We have removed the oil injection and installed a tiller on this motor. Motor didn't want to start until I quit choking it. Have put about 30 hours on boat since I got it in last few months without issue. I also ran Yamalube Ring Free Plus at a rate of 1 ounce for every 2 gallons of gas in my next full tank of gas. In neutral in will rev up past 5000 rpm and sounds fine. When you put it in the water--it idles great, but will not rev up and run as it used to run. Idles and starts with no issues. I think thats what people mean when they say "bogging down". After that run is when I changed hose and tank. I drove the bike for about a week and out of no where it started bogging down and losing power. Also I can not get the RPM past 5000 even when it does not bog down. Ran beautiful until the last run of last year. I have a new to me lower hour 2 stroke 115. The engine bogs down when I try to accelerate. After doing a couple things (including moving fuel line a little -see below) and then trying a new 4 blade prop, it wants to ever so slightly bog down on acceleration. Problem is that it will bog down and stall when you accelerate either under load or even when fired up in the driveway. Aug 19, 2023 · Beeping when not accelerating: Electric Yamaha: Heard a pop now not accelerating. That is why you have to make sure that you always use a good mix ratio when running your 2-stroke Yamaha outboard motor to avoid bogging when accelerating. last time out could get steady 4800 rpms would still bog down with wot. It has been in the shop for 2 years and the mechanic has Mar 4, 2011 · It got right up to 4700 5000 and ran good until I throttled down to idle and problem persisted. 10-06-2013, 07:44 PM. a)Use Good Fuel To Oil Mix Ratio Jul 18, 2013 · Re: 2004 Yamaha 150 4-stroke RPM/bogging down problem What you're describing is almost classic symptom of VST pump and/or filter failure. Apr 20, 2008 · After leaving the dock and slowly accelerating, it started to "bog down". The thing idles like crap and runs rough and bogs down up to 2000 RPM, after that (2000+) RPM it runs sweet and smooth. This would consistently happen at about 1/3 to 1/2 throttle when trying to speed up. When it comes to Yamaha 115 4 stroke problems, replacing the head gasket should be a priority every 4 years of service, or sooner if usage exceeds the average boater (50 hours per season, or 200 hours Oct 6, 2013 · Yamaha 115 four stroke bogging down. When I accelerate it will bog down. I have replaced and clamped all fuel lines, vacuum lines and Mar 31, 2024 · Hey all, posting to get some help troubleshooting a 2006 Yamaha 115 2-stroke. Again now on first run of this year. What might be the problem. Recently shipped from Houston area to Lake Tahoe. Started right up and idles like a brand new engine but after I start to give it some gas when starting to ride it bogs down and has no power. Removed in line fuel filter before primer, installed new impeller (low pressure from pee hole). Jan 4, 2009 · "I purchased a used boat last year with a low hour motor. Never happened before. Sep 11, 2020 · I just finished a new valve job and installing a new carbburetor on my 350. May 29, 2009 · Re: yamaha 115 acceleration problem Thanks for the info, the problems seem very similar. Jul 10, 2021 · Squeezed it anyway. That leads to poor performance (ie. If you drop the speed back down it will keep going otherwise it will quit. I finally made it a priority and Dec 3, 2014 · I have a four stroke 115 that idles great but when you go to accelerate it stalls. A mechanic told me that one of the cylinders has bad compression and needs to be repaired. The motor will start and idle all day long with out issue. May 29, 2009 · When tried to accelerate engine would run good up until about 3500 rpm's after that the engine would not accelerate and would slow down when increasing throttle. The issues is that when it is put under load and I try to get past a certain mid-range rpm, the engine starts bogging out. Smooth idle, excellent acceleration in neutral, excellent power in reverse, won't go above 2800 rpm in drive. - banjo Jun 23, 2021 · Hey guys, I have a late 90s 115 HP Yamaha Saltwater Series 2-Stroke that is having issues under load. Originally I could only get a steady 3,500 rpms WOT would bog down rpms would decrease. Lately it will only go to 4000 RPMs. engine bogging down, excessive vibrations), engine damage, and eventually failure - plus a hefty repair bill. Every time I put it in gear it wouldn't get past 1000 to 1400 rpm before it bog down and kill. I have cleaned the carburetor and swapped it out and it hasn't made any difference. It does great on dry land when you rev it up but not under load. It wont go over 2000 rpm, it just bogs down and quits. Got trimmed out and 30 seconds later, motor bogs down, running rough just above idle speed. From the bill he has reworked the carbs, replaced the fuel hoses, installed a new CDI unit, Staton assembly, replaced the pump, fuel separator, Pulsen Coil Assembly, crank start key, pressure relief valve assembly. I've done a few 115's and one F150. The bike had after market Cobra pipes, and figured it was a carburation issue or vacuum. I have a 2002 Mercury 115 hp EFI 4 stroke. WTF! Never done that before. Mar 31, 2024 · Hey all, posting to get some help troubleshooting a 2006 Yamaha 115 2-stroke. After running at idle for a while, back to WOT. Oct 7, 2013 · Yamaha 115 four stroke bogging down. The motor starts up fine, idles real well, and can be reved in neutral as well. Finally got started and WOT up the lake. In neutral, at 1300 rpm, you could hear it run rough. Revs up fine in neutral as well. I Oct 29, 2023 · The bike has been running well but just yesterday I started to ride and I immediately noticed it bogging down when I tried to accelerate. Jun 26, 2019 · When I looked at the bike it was popping and the number 2 pipe had bluing. Then took the boat out today and it was doin the same thing. Babied it back in, dropping the rpms down until it ran smooth, only turning 1500 when I got in. Took the new carb off and reinstalled the old one. Mar 26, 2010 · I am taking this message back to the top since I have a 130 HP 2 Stroke doing the same thing. The issue can be Oct 18, 2010 · This is my first post on this site. May 31, 2020 · I have a 1990 Johnson 115 that bogs under load. This problem started after having the head rebuilt due to a stuck valve. Changed all filters, cleaned VST and entire fuel system. Engine powers an 11'2 RIB Aug 4, 2010 · 2004 115 4-stroke bogs at acceleration 08-04-2010, 11:43 AM My 115 4-stroke starts fine, idles fine but when I throttle up to it bogs down and starts to sputter. Yamaha 4 150 hp slow acceleration to plane top rpms 44 to 4600 top speed 27 to 28 mph heavy boat? vst or injector or I have a 2009 yamaha 115 that bogs down when Apr 25, 2015 · Hello All, I wasnt sure how to describe this in the title. etc. Have a late ninties 115 yamaha two stroke. Going to try to give as much info as possible. Would lose alot of power and the engine would sound much lower. The cart will run fine when going at half throttle. The problem is once I put it in gear and try to speed up, the motor will only get up to about 4 mph and then bog down. See full list on longlifesport. Aug 4, 2013 · I kept finding black specs in my fuel filter and my engine would bog down at 3/4 to full throttle. Even when it does not bog down it takes a long time to reach 5000 RPM. com He says that the Yamaha factory rep says the problem is a cylinder sleeve. . If they clog, the injectors need replacing. Mar 16, 2011 · Would start and idle fine, run up to 3000 then start missing and bog down to 2500. ) The fuel injection system has been cleaned, new spark plugs have been installed and new fuel filters. Runs fine at low rpms. Runs fine for 30 seconds, bogs down again. I could not get on a plane and the engine sounded off, not smooth, "like" it was not running on all cylinders". It will get up and go when you take it slow on the throttle but if you hammer it, it will bog and stall. Sep 12, 2023 · This will lead to bogging while it is accelerating or throttling. I continued to dump the debris from the filter until it stopped showing up. Cleaned the plugs and it still does the same thing. Solution.
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