What causes a jet boat motor to lose power?
Boat Engine is Sputtering and Losing Power You most likely have a filter problem or fouled plugs. That could be why your boat motor is losing power. Solution: Replace the in-line fuel filter. If so, make sure to run the boat long enough to get the treated gas into the engine as well.
What causes an outboard motor to lose rpms?
An unexpected change in the performance of your boat motor can put a damper on a day of fun on the water or even prevent you from leaving the dock. A misfire will cause the engine to momentarily stumble or lose rpms and then regain its normal engine speed.
What causes a Yamaha outboard to lose power?
A problem in the fuel, compression, or ignition systems can cause poor starting, loss of power, or other problems. This basic troubleshooting and possible remedies, and covers all Yamaha outboard motors. Therefore some items may not apply to your model. If any more questions, please consult your Yamaha dealer or the experienced service shops.
What is the best 40 hp outboard in your opinion?
If used, then the answer is pretty much a 2010 50hp Yamaha 2-stroke (no 40 hp in 2010, the last year Yamaha sold 2-strokes in the U.S.) If you’re considering new, all the major names come in very close to the same weight.
How many horsepower does a Yamaha outboard have?
The motor starts and idles fine but when the throttle, 703 remote throttle control, is pushed to full throttle the motor will not exceed 2,000 – 2,500 …
Where to find answers to Yamaha outboard problems?
From outboard engine and electrical and electronics systems to engine and alarm issues, tilt and trim issues, this is the place to find information. So where do you start? There is a lot to know. I get asked regularly about what is the problem, and more importantly and how to fix a problem.
The motor starts and idles fine but when the throttle, 703 remote throttle control, is pushed to full throttle the motor will not exceed 2,000 – 2,500 …
How to post about a Yamaha outboard problem?
UPLOAD AN IMAGE OF YOUR PROBLEM EQUIPMENT! Give us a detailed description, short 5 word posts are not much use and will not be posted. Put your boat info, outboard make and model or basic detail in the post title. More useful information at fishing and boats. Have a Yamaha outboard problem to share?
What happens to my engine when I lose power?
Mine holds 40psi at idle and even at full throttle when the engine starts losing power its still at 40psi. Mine holds 40psi at idle and even at full throttle when the engine starts losing power its still at 40psi. So you have good pressure, the only other two sources are vacuum and ignition.
Why is my fuel pump on my Yamaha outboard not working?
Below we run through a few troubleshooting tips to help you diagnose a faulty fuel pump. Watch our Yamaha Outboard Fuel Pump Issues video above — in which we guide you through an outboard’s fuel system — to troubleshoot possible issues that may be causing fuel pump problems.