Yamaha 4 stroke outboard idle problems

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yamaha 4 stroke outboard idle problems Suzuki DF90 Intake Manifold Removal (90HP . But despite this great variety between different models, . Engine has a rough idle 3. May 25, 2019 · Hi all, could anyone explain why the following could be happening. Outboard engine will not stop 6. This engine has a 20" Shaft which is ideal for bass, flats, and pontoon boats. 98 Yamaha 5HP 2 Stroke Too Much Fuel in Mixture at Top End. Would that be considered moderate or high hours ? Sounds moderate to me, but I run into so many that age that are way less got me to wondering. For example, if I have a lot of weight in the back of my boat and try to take it to plane . I just recently bought a 1991 Yamaha 9. . Some companies claim to be more fuel efficient than others, but in many cases, it’s a matter of splitting hairs. 25 x 16 pitch. This illustrated outboard engine guide is filled with effective maintenance, repair, and advanced troubleshooting advice for 2-stroke and 4-stroke engines from 2 to 300 horsepower. Yamaha Outboard is overheating, overheats over heats, running hot 8. 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Apr 29, 2005 · In general, a 4-stroke is heavier than a 2-stroke, but that’s changing, too. After a few stalling cycles the motor will idle high and it is very hard to get it to idle at a normal speed and then stalls out after a few minutes. It was running rough just above idle but it smoothed out at 2000 RPM. I had similar problem. you should have it checked by a yamaha dealer, which we can do for you. Yamaha Outboard Services Specializing in servicing and maintaining Yamaha outboards, our service department is an authorized Yamaha key dealer providing warranty and parts. The engine has an external flush port, plus built-in carry handles and rest pads. Jan 04, 2017 · Boat Motor Problems Likely to Occur After Yamaha Warranty Has Expired. Yamaha Stern Drive 30L 130 or 135 Stalls. ARCHIVED. gatormark Posts: 2,240 Officer. Model name F115AET LF115AET, USA and Canada name F115TR LF115TR. Yamaha Four Stroke HIGH THRUST 9. Yamaha and Star brand Motorcycles, Scooters, ATV, Side . Looking at a mid 2000s 75hp. Yamaha 50hp 4 stroke intermittant trolling speed stall Not rated yet My Yamaha 50hp 4 stroke starts, idles, & goes from low to high speed fine, but when I let it idle for 15 minutes it dies, acting like a gas problem. 30 GPH | Yamaha 90 hp 9. 1994 lower unit Yamaha 150. I'd go WOT for maybe 5 minutes and then drop down to idle and troll. Sep 07, 2021 · Access Free 1999 Yamaha 50hp 4 Stroke Outboard ManualDC24 140, DC27 1140,, DC31DT 40, 1 , 24M4 216 60hp-200hp 380 Download 1999 Yamaha 50hp 4 Stroke Outboard Manual Have 50 hp 4-stroke 1999 yamaha outboard. 9 EXHY. “That makes it difficult to put the gear shift into neutral. 2 Jan 12, 2016 · Rough idle yamaha 1973 6 hp outboard motor repair manual how to adjust idle on a honda 9. If at all possible – get a 4 Stroke with EFI. I bought it on a Grady 222 in 2015 with only 200 hrs on the engine. 50 GPH | Yamaha 50 hp 4. 56” bore x 2. Jul 14, 2009 · I also have a 25 HP Yamaha outboard with I think the same problems. 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Aug 01, 2013 · I have a 2005 Yamaha txr 250 hp 4 stroke that just developed a hole spraying saltwater from the block. I thought it was a fouled plug at first so I put a new set in and still have rough idle and some stalling when I pull the throttle back. 3:1. Tip: Yamaha four-stroke outboard timing belts and HPDI ® two-stroke outboard high-pressure fuel pump belts are cogged and Kevlar®-impregnated, making them super-tough and non-stretchable. 1973 Yamaha 2 stroke 8hp outboard suspect impeller. 2 several very effective tests. March 6, 2013 at 4:24 pm #1149084. 9HP Outboard Engine. 9 HP Outboard Motor 4 Stroke - First Run This site contains many of Yamaha’s valuable trademarks. I also noticed that the spark plugs are fouled with black powdery carbon. Problem: The motor would not idle properly. LIT-18616-02-73 Service Repair Manual Application: 2004-2005 Yamaha Marine Outboard 150 HP (150HP) 150C & V150C 2-Stroke Engines. After setting out from Redcar, UK, we headed southwards towards Saltburn-by-the-Sea before. I use the motor for walleye fishing *****ing at 1. It has been alleged that the corrosion, pitting and consequent engine failure typically occurs after only 500 to 700 hours of use. 95. Yamaha 60 Rev problem. The basic difference here is that 2-strokes are designed to run at higher RPMs faster, but 4-stroke engines are more durable in the long run. 0 GPH | Yamaha 350 hp 34. rpms. Operation, Service & Repair manuals for vintage Yamaha Outboards. I've been having some issues with the engine: sometimes, when accelerating quickly, it stalls and dies out. . Showing all 8 results. number 4 cylinder will not spark across Page 16/42 Sep 29, 2016 · 1998-2006 Yamaha 25HP Manual 4-STROKE . Easy starting and quiet . Yamaha offers consumers great variety with its four-stroke outboard motor lineup. Yamaha Outboard Fuel Consumption chart : Yamaha 25 hp 2. Utilising a dual-thrust design the FT9. $45. In the past, 2 stroke motors burned more fuel than 4 strokes. (2000 model) F115TLRY Yamaha 4 Stroke Outboard. [ARCHIVED THREAD] - Yamaha 4 stroke outboards. Oct 07, 2007 · According to my Yamaha owners manual, the low idle speed of these motors should be between 700 and 750 rpm. Dec 11, 2015 · Yamaha, Mercury, Suzuki have all had problems with large stainless props. Shifters, Tillers, and Stops. May 16, 2020 · L3Harris BNVD-1531s and NEW Nocorium BNVD-1531 NVG Wraps Available Now! 8/20/2021 10:37:39 PM. Replaced the water separator and primer ball and it ran fine for a day then back to cutting off and the ball deflating. You can not restart the motor unless you raise the choke lever, then it will start since there is an interlock between the choke leaver and the throttle/shifter you cannot shift into gear so when you choke back the engine dies. In 2011 alone, the company featured 10 different four-stroke makes with dozens of different models. yamaha 9. 8 GPH | Yamaha 300 hp 26. Ok after cleaning the iac valve, testing the tstat, replacing the plugs, and installing new fuel lines and primer bulb. Jul 29, 2014 · 2006 F90TLR Idle Problem. History-10 years flawless service. Remove the screws and lift off the housing. New edition now available! Seloc manual 1701 (book) covers 1984-1996 Yamaha outboard 2-250HP, 1- to 4-cylinder, V4 and V6, 2- and 4-stroke models (including jet drives). 9 HP 4-Stroke Outboard See more like this Watch Yamaha 9. The idle system is the primary fuel system when the throttles are closed and for just off idle, then the intermediate system takes over until the rpm is high enough for air flow in the venturi to Apr 29, 2013 · I cleaned mine a while back and was told by a Yamaha mechanic who looked it up in a book he had to set the idle mixture needle valves at 1-1/2 turns from seated as a starting point and adjust from there. i found that the large diameter and finer pitch was a far better match for my boat. Posted: 5/14/2020 9:48:36 PM EDT. The Suzuki, in fact, weighs more than any of the 9. Yamaha outboard model or horsepower. April 2012 in Boating #1. Outboard Stalls When Idling. Hi - I'm new and need help. Sep 11, 2013 · 1 Answer. several very effective tests. We have fully boat tested this Yamaha 150 and it runs excellent. Mine is year 2000 and came to me second hand. The boat obviously has a load on it, but my motor will run for about 4 minutes and then start to shake a little and eventually die. However, Honda did not add EFI until 2009. Also, there is an inline fuel filter-check that. It may also contain trademarks belonging to other companies. 99. Finally brought it to the Yam dealer. Carburetor Cleaning/Rebuildon 2013 Yamaha 20HP outboard 4-stroke. Mar 06, 2013 · Participant. This is a 4-stroke 150 hp Yamaha Outboard boat motor for sale. The motor is in good condition, but it had problems with running. To access the fuse, unscrew and remove the electrical cover on the top of the outboard and remove the fuse holder with a pair of pliers. If the connection at the center of the fuse is broken, the fuse has blown. 1. Jan 04, 2017 · Consumers who experienced problems with certain outboard motors manufactured by Yamaha may have legal recourse to collect compensation for the cost of repairs and other damages. It's coverage that can help you avoid the inconvenience of uncovered repairs. Any references to other companies or their products are for identification purposes only, and are not intended to be an endorsement. All are available to purchase and some manuals available as Free Downloads. Mar 25, 2011 · I know the 4 strokes are supposed to idle down better than the 2 strokes. Feb 18, 2009 · The Suzuki, at 97 pounds, is the heavier outboard compared to the Yamaha at 91 pounds. Jul 25, 2012 · I put it on the water and ran it about once a week on a 16 boat, trolling with it for about 3-4 hours every time on idle. It is running rough. I have a 150 4 stoke that after idleing for ten minutes the overheat alarm goes off place it in gear and she goes off in a few seconds. Hi, I've recently bought my first boat, an 4,6 meters alu blat , along with a 40HP 2002 4-stroke Yamaha outboard. in particular large diameter/finer pitch combos - mine was a 15. The motor ran at 850-900 in neutral at first but after running it for awhile it would still miss and die when coming back to idle like coming to the dock. Apr 29, 2013 · I cleaned mine a while back and was told by a Yamaha mechanic who looked it up in a book he had to set the idle mixture needle valves at 1-1/2 turns from seated as a starting point and adjust from there. 9 hours ago · Yamaha 2 stroke outboard bogging Jun 06, 2020 · A relative of mine has a 2004 50 HP 4-stroke Yamaha he bought new and it has always ran great until now. Jun 29, 2021 · In a 4-stroke, the cycle happens in 4 strokes of the piston or 2 revolutions of the crankshaft. Still, Yamaha recommends they be changed every five years or 1000 hours. - to your Yamaha and get a solid protection plan designed and administered by Yamaha just for Yamaha owners like you. is available for a wide variety of Yamaha products. I have a 9. Jun 21, 2011 · 2003 Yamaha 200 hp, 4 stroke outboard with 1,100 hours. 9 HP 4 Stroke Top Cowling Assembly PN 6G8-42610-12-EK Fit 1985-1993 yamaha 9. Your Price. 0 to 1. Jul 29, 2013 · 1. Outboard has poor deceleration 5. Yamaha precision blend. I run a newer Yamaha 20HP 4-stroke. Sep 29, 2016 · 1998-2006 Yamaha 25HP Manual 4-STROKE . The idle system is the primary fuel system when the throttles are closed and for just off idle, then the intermediate system takes over until the rpm is high enough for air flow in the venturi to Mar 25, 2011 · I know the 4 strokes are supposed to idle down better than the 2 strokes. Unsolved problems for yamaha outboard 4 stroke idle speed control question. there is a major failure issue with the harmonic balancer on these in line four strokes. If … F60LB Yamaha 4 Stroke 60hp Long Shaft EFI OUTBOARD FOR SALE The class leading F60F has been hailed as one of the finest mid range outboards ever produced. Help. 20 hp yamaha 4 stroke problems. 07-29-2014, 10:15 PM. LOOK INSIDE to see sample pages. The Suzuki carries a $2,753 retail price, while the Yamaha comes in at $2,830. The super efficient EFI system delivers impressive power at high engine speeds and real torque in the mid ranges. Thread starter . (I have a 90) The only other adjustement was idle speed located on the throtlle linkage of one carb. actually if a poppett valve is stuck open it will overheat at idle, also your engine model is included in a technical service bulletin for exhaust tuner corrosion which can cause an over heat issue. 9 HP 4 Stroke Outboard Motor. 56” stroke, displaces 432cc, and has a compression ratio of 9. Most outboard carburetors have three metering systems or circuits that overlap each other throughout the rpm range. 7 . $39. 2 - 1. The accelerator pump squirts gas into the carb throat whenever the thottle is advanced. Here are steps I would do. 9 4-stroke problems | YBW Forum Yamaha 9. 2001 yamaha 50 hp 2 stroke; 2005 115hp Yamaha Outboard starting & idling problems; 250 ox66; 2002 F80B sounds like back firing off idle; trying to Yamaha F350C Four Stroke Outboard Review The . The problem I am having is that at 600 rpm's the port motor cuts off about 30 % of the time when switching between forward and reverse. #1. Motor runs great but after 30-45 minutes just cuts off. :^) 05-24-2010, 06:14 AM #15 They can answer questions for any Yamaha outboard model or horsepower. E. We went to a Canadian fishing camp several years that had 50 hp Hondas in the pre . 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Jul 29, 2013 · 1. View the Table of Contents for this manual. Mar 29, 2010 · Re: Surging/Idle Trouble with 4-Stroke Outboard It may be new and clean on the outside, but the inside is where the fuel runs through the jets and where the problems are likely to be. Motor will not . 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum The powerhead has 2. There's a hose connected to the thermostat housing. Yamaha 9. Feb 14, 2014 · my 2006 90 hp 4 stroke Yamaha outboard will not idle below 2500 rpm. 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Mar 25, 2011 · I know the 4 strokes are supposed to idle down better than the 2 strokes. #3 · Oct 22, 2012. 9-horsepower four-strokes weve tested. 00 US. Over all it is a very reliable prop turner. 9 4-stroke (1991) outboard carb cleaning I just recently bought a 1991 Yamaha 9. 0l tks fuel mixture adjustment how to change valves on a 1996 80hp mercury 2 stroke out board 2004 mercruiser 350 mag mpi tow sports work shop manual johnson 40 hp outboard fuel pump idle speed control 25 hp yamaha outboard electric start won't fire how to check . Nov 08, 2014 · I've emailed a couple Yamaha dealers about a new powerhead but have not heard back yet. 4 Stroke Outboard Fuel Economy. Each had unique engineering specs, power capabilities and intended uses. For an outboard that stalls while on idle, go through the following checklist to troubleshoot the problem: Check the Carburetor. All this makes me think of my old Mercury outboard from the 80's, 2 stroke, no hour meter so not sure of total usage but I ran it for years without a problem and I bought it used. LIT-18616-02-65 Service Repair Manual Application: 2004 04' & 2005 05' Yamaha Marine Outboard 40HP (40-HP) & 50HP (50-HP) 4-Stroke Engines. I recently bought a 17 foot Boston Whaler Montauk with a 70hp 4 stroke Yamaha outboard. 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Yamaha 9. Yamaha Outboard Wiring Diagram Awesome tohatsu 30hp Wiring Diagram. Re: Yamaha 115 HP idle problem The thermostat is on top of the motor out in the open. May 11, 2005 · Yamaha Motor Corp. 1) Take the water separator filter off fuel line and dump its content into a glass jar. Sep 25, 2011 · I have a rib with a 2004 50hp 4 stroke Yamaha that had been sat in a river with less than 20 hours use and as far as I can make out had never been opened up as the river has a 8 knot speed limit. We idled for about 45 minutes with the forward . It now has 320 hrs. Yamaha 4 2 stroke cutting out. ”. If anybody has experience with a rebuilt unit for an 08/08 F250B TXR 1029821. My buddies shop has done well over a hundred but yamaha is not making it a recall issue, dont know why. Yamaha Outboards 1984-1996 Repair & Service Manual. 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Aug 09, 2010 · I have a 2005 Mercury 115 HP 4-stroke EFI, which has same power pack as your Yammie. 5 hp 4 stroke outboard. 9 produces twice the thrust of comparable two-strokes within the 2,000 to 3,000 RPM range, while . Diagnostic steps:1. Tags: 9. Idle Speed Adjustment Suzuki Outboard DF 40-70 HP 1999-2011 October 24, 2016 0. I put in a new plug, still nothing. “You can end up with a slightly high idle,” says Claude Von Plato, manager of Yamaha’s Marine Service Division. It runs rough all the way up to about 3500. They can answer questions for any Yamaha outboard model or horsepower. 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum 20 hp yamaha 4 stroke problems. ARFCOM After Hours Party! (Sept, 4th - Houston, TX) 8/17/2021 2:03:53 AM. Noticed the primer ball is deflating. Yamaha Outboard Manuals. One way manufacturers are reducing 4-stroke weight is on the cranks and midsections, Senger says. At fisrt it would not start unless I held my hand over the air intake to choke it, then after a long warm-up it would idle. Overheating 2001 50 hp 4 stroke yahama low hours. If your outboard stalls whenever you drop it into idle, the problem usually lies with the carburetor. Mar 12, 2009 · Cold start problems, Yamaha 20HP 4-stroke. 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Apr 11, 2016 · I’m having the same problem with my 2000 Yamaha 230 outboard. My question for you guys is have you been sucessful getting a 50HP or 60HP 4 stroke to troll down to say 1. 2 I have a 115 Yamaha 2005 4 Stroke EFI. I have a 115 Yamaha 2005 4 Stroke EFI. Items in Cart: 0. 9 four stroke outboard. Jan 18, 2016 · Outboard in “Forward” gear and check timing at idle suzuki 175hp 4 stroke outboard operating manual how to hook up gas lines on 2000 evenrude 35hp motor yamaha 40 hp 4 stroke ignition timing 2003 mercury marine 40 install fuel pump kit install u tube how fast does a 2003 2 stroke150hp evinrude engine go 50 hp honda outboard motor crankshaft . Yamaha Outboard engine stalls 4. 8 GPH |Portable . 9 has been specifically designed to provide the extra grunt when you need to move big loads such as sailboats and heavy pontoons. On top of that, it has Yamaha’s oil-retention system that keeps things leak-free when the engine is laid down in the back of a pick-up or SUV. Greasy Hands and a Wrench . TROUBLESHOOTING: If you don't know the cause of the problem than this is where you turn to, the trouble shooting section. I had a full service a couple of weeks ago and took it out yesterday, I was having a problem with. A Yamaha outboard 50hp 3-cylinder and 4-cylinder 4-stroke and 2-stroke repair manual is a bo. List Price. I use this feature to "prime" the engine during cold start but it is designed specifically to avoid the hesitation you are getting. Mar 25, 2011 · 2001 Mercury 115 hp 4-stroke idle problems. In fact, Honda’s 50-hp 4-stroke is lighter than some conventional carbureted 2-strokes, and the 2- and 4-stroke Yamaha 150-hp engines weigh roughly the same. Its on an 18 foot boat and when Im out trolling, I want to run it as slow as possible so just clicking it in forward gear is the speed I need. 2 GPH | Yamaha 225 hp 17. The symptoms were that it would not run idle unless i covered intake duct almost fully with my hand. 9 outboard with a remote mercury 3. No matter what model you have, there will eventually come a time when you may need to troubleshoot some common issues. I have replace the pump checked pop it value do I go to the thermostat next I have no problem while running. yamaha outboard is idle to high; yamaha outboard motor idle adjustment; yamaha outboard stalling at idle; yamaha outboard stalls when in idle or in gear; yamaha outboards stall in idle; yamaha 50 hp 2008 idle rough; where is idle screw on 1997 yamaha 25hp; where is idle screw on 2007 50hp yamaha outboard; where is idle setting on 1996 yamaha . 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Mar 25, 2011 · 2001 Mercury 115 hp 4-stroke idle problems. Apr 02, 2020 · 2 Stroke vs. The key here is “overall”. Let it sit for couple of hours with a lid on the jar. I have a 2001 Sea Fox 215 with a Mercury 115HP 4 Stroke EFI. 9 4stroke carb, idle problem, stalls after warm. recently it began idling rough and would some times stall at idle, but would run fine at higher … read more Jun 15, 2010 · Re: Yamaha f115 4 stroke rough idle and stall. Yamaha makes 40 horsepower motors in both 2-stroke and 4-stroke varieties. 9 - 4 stroke idle problems 09-29-2017, 10:40 AM. Y. Engine has poor performance, bogging, hesitation, backfires etc. I’m no mechanic, but I’m going to replace the pick up line. either the needle seat plugged and not maintaining enough fuel for more than idle or plugged man jet not . After . Download a repair manual for thru Yamaha 50 horsepower outboard instantly! A downloadable outboard repair manual, also termed factory service manual, is a book of repair instructions that describes the maintenance, service and repair procedures for the . 9. Get the boat from the shop and can drive it for about an hour or two with no problem up and down a full range of throttle positions, after a period of time when you shift to idle speed the motor stops. Aug 01, 2013 · I have a 2005 Yamaha txr 250 hp 4 stroke that just developed a hole spraying saltwater from the block. Pull cord with throttle wide . Yamaha Outboard Wiring Diagram Inspirational Yamaha 703 Remote. Remove the large plastic cover that is over the flywheel and timing belt. My original symptom was the motor ran great when cold and I could go all day at 4500 rpms; but, when I came back to the dock it would idle erratically and stall. 1 GPH | Yamaha 425 XTO 36. 70 GPH | Yamaha 150 hp 15. The only issue I have ever experienced was if I dropped the RPMs very abruptly, the engine would sputter and die, but when restarted it would keep running. Get free help, tips & support from top experts on yamaha outboard 4 stroke idle speed control related issues. Engine will not start or starting difficult 2. Both motors seem to be starved for fuel at 600 rpm, but at 700 they run much smother. I suspected fuel flow issues-something in the jets - I had the carb on and off and apart more times than I could count and no luck. call 251 987 2628 and talk to steve, let . Jun 08, 2015 · Jun 8, 2015. Love the motor, its quiet, no smoke, is very smooth running and gets great economy (1-2 gallons per day fishing fresh water and 2-3 gallons per day trolling the salt). TROUBLESHOOTING: If you dont know the cause of the problem than this is where you turn to, the trouble shooting section. It’s no secret that Yamaha offers one of the most impressive 4-stroke outboard motor lineups on the market. Nov 14, 2019 · Yamaha 20hp 4-stroke outboard problems. Seloc Marine Repair Guides for Yamaha Outboard Engines (Online and Printed Manuals) $0. Apr 29, 2005 · In general, a 4-stroke is heavier than a 2-stroke, but that’s changing, too. Posts: 3,177. 5 GPH | Yamaha 175a hp 16. LIT-18616-02-71 Service Repair Manual Application: 2004-2005 Yamaha Marine Outboard 115HP (115-HP) 4-Stroke Engines. 3 GPH | Yamaha 200 hp VMAX / HPDI 19. Brilliant fuel economy matched with great torque and power means versatility that is second to none. If you’re the proud owner of one of these engines, you know just how powerful and reliable they can be. 2007 Yamaha outboard 4 stroke will not idle and engine dies. It ran fine but I noticed rust on flywheel and treated it with T9 and thought it was due to water leaking in cowling. It has been alleged that the company’s first-generation F-Series four-stroke outboard motors (model years 2000 – 2005) contain a serious defect that allows the exhaust passages to corrode and pit severely, ultimately resulting in premature engine problems and failure. The outboard is in fine condition with low hours and starts and performs perfectly until the other day when I took the kids fishing and idled. Yamaha Outboard 150 hp, 4 cyl, 4-stroke: 2004: Apr 04, 2018 · Yamaha Outboard Wiring Diagram Pdf Gallery - Yamaha 9 9 4 Stroke Wiring Diagram Auto Electrical Wiring Diagram •. 10 GPH | Yamaha 115 hp 9. No need for a gasket because the thermostat has the seal on it. S. If you own one get it to your dealer and tell them . USA has issued a voluntary recall on some of its 4-stroke outboards because of a problem that could prevent operators from shifting into neutral. Suzuki has too since about 2002. However, the 2 cycle product is now much more efficient in its injection methods used to bring fuel into the engine. Because recreational boaters will typically use these engines for less than 100 hours per year, it is likely that the engine will fail after . 5 MPH? I have an '09 60 hp Merc 4 stroke and it will troll down too 1. 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Jun 30, 2010 · Steve, this sounds identical to the problem I had on my 2004 Yamaha 2. After a 2 hour run at 1000-3500 RPM it quit running and wouldn't start. Yamaha has had it for about 8 years in most of their outboards 40 hp and up. 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Yamaha 150 four stroke owners take notice. This engine is an EFI with only 415 hours. Oct 22, 2012 · 4,280 Posts. We have Yamaha Marine Manuals for 2-stroke & 4-stroke outboards. That worked and I didn't touch them. Add Yamaha Extended Service - Y. sometimes it would start right back up and idle normally and sometimes the erratic idle would persist. Spark Plugs. 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum 9. Loose steering 9. Replace it with one of the same amperage, as listed in the "Specifications" section of the Yamaha outboard owner's manual. 7 GPH | Yamaha 250 hp 23. Sep 06, 2007 · Home Boat Design Forums > Design > Propulsion > Outboards > 2007 yamaha 4 stroke 4hp won't idle Discussion in ' Outboards ' started by oldred67ford , Sep 6, 2007 . 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Nov 14, 2019 · Yamaha 20hp 4-stroke outboard problems. This was the first time out with the new Yamaha outboard engine. 20 hp yamaha 4 stroke problems 20 hp yamaha 4 stroke problems . 7. Jun 06, 2008 · Re: Yamaha 4 stroke 8hp - Low speed circuit (idle) Thinwater is right. Where To Download Yamaha 9 9 Hp 4 Stroke Service Manual Yamaha 6G8-81800-11-00 OEM Starter for 9. 9 - 4 stroke idle problems - Yamaha Outboard Parts Forum Yamaha F40 BET outboard problems. 9 hp 4 stroke for sale | eBay Your choice of tiller handle or remote (does not include controls). The high-thrust FT9. Ed Sherman, ISBN 9780071544627. 90 GPH | Yamaha 70 hp 2-stroke 7. yamaha 4 stroke outboard idle problems