Yamaha outboard oil injection problems

Vocational Technical or Trade Scho. Thatll tell you the engine is getting oil.

Failure to heed this step can result in catastrophic engine damage from lack of lubrication while the fuel lines purge themselves of pure fuel and are filled completely with pre-mixed fuel.

Yamaha outboard oil injection problems. If you have a Yamaha tach with oil level indicators then make sure it is showing full oil level if middle bar is flashing it will not transfer oil and the oil level in remote oil tank is low or the sensor is bad. If tach is showing full oil level and wont transfer oil then the engine oil tank sensor may be bad. Yamaha Oil Injection Problem If the harness checks ok check the sensor in the tank in the boat.

Sometimes the gauge will show yellow even if tank is full but not all the time. If this sensor goes bad the pump will not pump unless the switch is used this is to make boater notice that hes almost out of oil and to refill or get back to shore. Common symptoms of trouble include a lack of oil transfer overfilling of the main tank and oil leaks while the outboard is tilted.

Most of the time these problems are due to operator error and are not the components fault. Non-transfer of oil to the engine-mounted main tank can be as simple a problem as a neglected filter. Thatll tell you the engine is getting oil.

The Yamaha oil injection system is completely mechanical and its very reliable. If you ever have any problems its probably going to be with the pump system moving oil from the external oil tank into the small tank under the engine cowling. Here I disable a oil injection system on a 2006 Yamaha 50hp 2 stroke outboard motor.

This method can be used for other Yamaha 2 stroke outboards. The main problem if there is one with Yamaha oil injection systems is failure of the pump located in an indentation on the back side of the oil tank. Many of you have experienced the tank mounting bracket corroding and rusting so bad it almost falls apart when you look at it.

If the engines oil pressure is low the ignitioninjection of both cylinders 1 and 4 is cut however the ignitioninjection of cylinders 2 and 3 is not cut. Once the oil pressure can be increased to 2175 psi 150 kPa or higher the warning can be cancelled by decreasing the throttle opening angle to less than 2 and turning the ignition key to the OFF position. The Yamaha outboard forum marine engines will help you find answers to Yamaha outboard problems 4 stroke Yamaha outboard problems 4 stroke Yamaha 40 hp 4 stroke problems Yamaha 200 outboard problems Yamaha 4 stroke outboard problems Yamaha 50 hp 4 stroke problems Yamaha 60 hp 4 stroke problems and Yamaha 70 hp 2 stroke problems plus a lot.

Common symptoms of trouble include a lack of oil transfer overfilling of the main tank and oil leaks while the outboard is tilted. Most of the time these problems are due to operator error and are not the components fault. Non-transfer of oil to the engine-mounted main tank can be as simple a problem as a neglected filter.

Vocational Technical or Trade Scho. I have a 2001 Yamaha fuel injected 4 stoke outboard motor I have a 2001 Yamaha fuel injected 4 stoke outboard motor one injestor is not working properly and now i notice a high level of oil in the ctank case and i think its gas. Oil Injector Problems.

Now and then with certain models of outboard motors the oil injection system will appear to not work properly. However with most oil injection systems this is a wrong diagnosis. The idea here is to BE SURE your pre-mixed fuel is running through your Outboard BEFORE you disconnect the oil injection system.

Failure to heed this step can result in catastrophic engine damage from lack of lubrication while the fuel lines purge themselves of pure fuel and are filled completely with pre-mixed fuel. If you want to premix you would strip the oil injection system off you would have to make a block off plate out of aluminum for where the oil pump was and then premix at 50 to 1. However the oil injection system is fairly reliable and personally I would find the gremlin you got here and fix it and continue to use it.

F your two-stroke Yamaha outboard has oil injection with a remote oil tank inside the boat you will begin your service by accessing this tank. These re- mote tanks are not always situated in the easiest-to-reach places so you may have to consider removing a livewell tub cooler or access panel to get to the tank. I think it was only referred to as the Oil Pump I replaced it.

When we put the boat in one day to go fishing we got out of the no wake and throttled down well almost immediately an alarm was sounding so I backed off. We could only do as the guy was originally saying on this thread low rpm like a fast idle without the alarm going off. Yamaha oil injection rarely gives any problems Id leave it there.

Start with a compression test then use a spark checker to insure you are getting spark on each wire. Pump up the primer bulb and squeeze it pretty hard does it go down. Are you getting any fuel dripping around the carbs.

What did you clean the carbs with. I have a 200 Hp 2 stroke Yamaha OX 66 Saltwater seriesI bought the boat and motor new in 2000The dealer told me to fill the oil tank with oil and to also add a 50 to 1 premix to the gas for the first 10 hrs of run timeLong story shortafter 10 hours I relied only on the oil injectionIts 15 years old now and runs like a new oneIt has a. Not priming the system after the fuel tank is empty is one common mistake many first-time oil injection owners make.

Most 2-stroke oil systems do not prime very well. Your engine can run without properly priming the system. However during that time the system is not primed your engine is only receiving a fraction of the oil flow it should.

Winterization is also a major concern with oil injection. This Alert Affects. Consumers who purchased a boat with a Yamaha first-generation F-Series four-stroke outboard motor manufactured between 2000-2005.

Severe corrosion and pitting of exhaust passages premature engine failure. Yamaha Motor Corporation USA. Ok folks new to the outboard scene and wanted to get some opinions on my situation.

I have a 1988 Bass Tracker 17 footer with a Mercury 70 on it. The outboard is super clean and is the original motor for the boat. The outboard has an oil injection system on it.

Under the cowling is an oil reservior. Oil injection on all outboards produces an intermittant beep when there is either a problem with your motor not getting oil oil tank level sensor is bad or your oil level in the tank is low. When the oil tank is low you have roughly 30 to 45 minutes running time before being empty.