Mercury 75hp 4 stroke problems

We bought a boat with a 2012 mercury 2 stroke 75hp engine and it has been the biggest waste of money. X2 on fuel problems.

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Mercury 75hp 4 stroke problems. What the problem is that these 4 strokes with carbs have very small jets that are easily clogged so the motor runs like crap particularly at idle and acceleration. Mercury 115 four stroke problems. It is a fact that Mercury builds the 25 30 40 4-stroke powerheads for Yamaha.

If there are problems with the download please contact us. For its 75th Mercury has introduced a new 75hp four stroke outboard as well as a new 90hp and. 2001 Mercury 90HP 4 stroke.

Buddy had similar problem with a 2002 75hp MercYam. On his heavy aluminum law enforcement boat was a 75 HP 4-Stroke Mercury. Basically the same as the 90 HP version.

The engine had 850 hours on it and was just 1-12 years old. No problems and he loves it. Posted 11-09-2003 0724 PM ET US.

2001 75 hp mercury 4 stroke. Starts right up idles well. Then 30 seconds or so into full throttle and it starts to idle down to a full stop.

It will usually start up again and the problem will repeat. 14 34 X 19 or 15 X 18 or around a 14 X 1819 4 blade. Thanks Steps but 75hp four stroke mERC will only rev to 5500 -5600 - that is what it is designed to do.

A 75hp is significantly above normal power for our 5m centre console boat - again why would we ever consider underpowering boats. Having low speed idle problems that have gotten worse. Wont even start now.

Is there a 3rd source of rebuild kits for these carbs. I found a 3rd source of parts for older Mercs but it seems to dry up for the newer motors. I have 4 carbs that I may be able to rebuild.

Merc wants 135 bucks per kit. It might be a combination of the fuel and the carbs on the 90 4-stroke but any engine boat or otherwise will suffer problems with old gas left in it. I personally have the 115efi but I would be willing to bet the farm if I put my boat up for an extended period of time without adding a stabilizer Id likely have the same problems you are experiencing.

Writing from Sydney Australia and this seems to be one of the best boating forums on the net and particularly on Mercury motors. Looking at purchasing an 85 Mercury 2 stroke 3 cyl 75hp long shaft with tilt and trim for a 16 feet half cabin-replacing a dead 60hp 82 Johnson 2 cyl 2 stroke. One of my.

If own a 4 stroke Merc and look around the internet it wont take long to find someone with fuel delivery problems. I wasam a victim too. Boat in the shop for at least 7 weeks of the season so far and a new FSM float switch on order to be installed.

Im looking at buying a boat this weekend. Its fitted with a 2002 Mercury 75hp 2 stroke. I know that some mercury motors have earned the reputation as the black anchor.

Although from what I understand this is more reserved for some of the earlier 4 stroke versions. X2 on fuel problems. More than likely that motor has an ignition that energizes a primer.

Turn your key to on not start and if it pushes in you should hear a click coming from the primer usually right next the fuel pump or carb when you push it. 2008 Mercury EFI 4 stroke Fuse Issue I know this doesnt sound like it makes any sense but check the starter motor and battery cables inside the cowl for signs of heat damage. There have been a few instances where at certain RPMs engine harmonics and vibration have shorted inside the starter motor and caused it to engage the flywheel while the engine.

WHAT MERCURY WILL DO. Mercurys sole and exclusive obligation under this warranty is limited to at our option repairing a defective part replacing such part or parts with new or Mercury Marine certified remanufactured parts or refunding the purchase price of the Mercury product. Mercury reserves the right to improve or modify products.

Video showing service procedure for mercury 4 stroke outboard fuel supply module consisting of high and low pressure fuel pumps float switch and presuure. He is a Mercury Master Tech and as good of a marine mechanic as there is. His phone is 864-421-0444 in Greenville SC.

Sign into the Mercury Engine section and post your above message. Mercury 75HP 4 stroke start up - YouTube. KaChava - The Worlds Healthiest All-In-One Meal Shake.

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Running a 13x17p spitfire x7 prop. Continued operation at large throttle opening can cause engine damage if your current problem is a fuel supply problem. The motor can be running low on fuel in the upper carb leaning out the fuel mixture causing a lack of power and raising combustion temp high enough to melt the piston.

I wasnt aware Merc built a carbureted 4 stroke in 2000. I have a manual on Merc. 1998 and later 75-125 hp 3 and 4 cylinder 2 strokers updated in 2015.

Before you go diddling with jets maybe doing a DeCarb might help. Wont cost much not a lot of time to do it and may solve your problem. Its in the archives or just Google the term.

2011 Mercury 60Hp 4-stroke Fuel Pump Short fault code. 2011 Mercury 60HP Four Stroke. I have the above motor new to me that when I start it it gives me 6 short beeps and runs fine.

I am able to drive the boat to 5000 rpm and after 5000 it sends another tone. Due to this I decided to get it read. We bought a boat with a 2012 mercury 2 stroke 75hp engine and it has been the biggest waste of money.

At 40hr the ignition timing magnet developed fault and had to be c ok completely stripped down to replace the service centre took 4 weekend diagnose the problem at 200 hrs the engine has to be overhauled due to ignition problems. Head Gasket or something more sinister. – 2003 Mercury 75hp 4 stroke My technician buddy came over last night and we spend a few hours BSn over it and running all the numbers to repair it.

Even though it is a 2003 model and a 4 stroke and I got free labor in order to really truly make it right – it would simply cost more than its worth.