Umair Gaines
The Yamaha 150 has both a manual choke and an electric choke. The manual choke is used to close the choke plates and give a small amount of throttle, making it easier to start the engine. The electric choke can be activated by connecting it and turning on the ignition. However, some users have reported issues with the electric choke not functioning properly, which may be due to various reasons such as a faulty O ring or choke solenoid. To troubleshoot electric choke issues, users can try adjusting the choke solenoid, checking the choke plates, or consulting Yamaha outboard forums for expert advice and repair guidance.
Explore related products
What You'll Learn
Troubleshooting a faulty electric choke
Step 1: Contact Yamaha Customer Support
Before attempting any repairs, it is recommended to consult the professionals at Yamaha customer support. They can provide valuable insights and guide you through basic troubleshooting steps. This can save you time and help narrow down the potential issues.
Step 2: Inspect the Choke Solenoid
The choke solenoid is a critical component that can cause problems if it's not functioning correctly. Inspect the solenoid by using a multimeter to check for continuity. Connect the multimeter to the terminals of the solenoid and interpret the reading. If the solenoid is defective, it will need to be replaced.
Step 3: Check the O-Ring
The O-ring is a small but vital part that attaches the choke solenoid pull rod to the choke linkage. Over time, the O-ring can become old, brittle, and fail. Inspect the O-ring and if it appears worn or damaged, replace it with a new one. Ensure that the replacement part is compatible with your Yamaha outboard model.
Step 4: Consult Manuals and Online Resources
If the issue persists, refer to online resources such as video guides or forums dedicated to Yamaha outboard motors. These can provide detailed instructions and insights from experienced individuals who have faced similar issues. Additionally, consult your Yamaha owner's manual for specific instructions related to your model.
Step 5: Consider Sending it Back
If none of the above steps resolve the issue, it's possible that a more severe problem is at play. In this case, consider sending your Yamaha outboard back to the company for further inspection and repair. If your device is still under warranty, you may be eligible for free replacements and repairs, as outlined in the warranty guidelines.
Remember to exercise caution and only attempt repairs that you are comfortable with. If you're unsure, it's always best to seek professional assistance to ensure a safe and effective resolution.
Electrical Repairs: Landlord's Responsibility or Tenant's Burden?
You may want to see also
Explore related products
Using the manual choke
The Yamaha 150 has both a manual choke and an electric choke. The manual choke is a small black knob with the choke symbol "[/]" on it. It is located on the front starboard side and is easy to miss. To use the manual choke, leave the engine in neutral and pull the choke knob out, then turn the key.
The manual choke gives the engine a small amount of throttle along with closing the choke plates. The engine will start more easily if you give it some throttle while using the manual choke. This can be particularly useful for the first start of the day, and some users report that no choke is needed after that.
Some users have reported issues with the electric choke not working properly. One possible cause is that the O-ring used to attach the choke solenoid pull rod to the choke linkage has become old and brittle and failed. Another possible solution to issues with the electric choke is to adjust the mounting screws on the choke solenoid at the motor and move it up or down until you can hear the choke slam shut when you operate it with the key. Make sure it is not adjusted so far that it does not open up all the way when the key is released.
Choosing an Amp: Electric vs Acoustic
You may want to see also
Explore related products
Adjusting the choke solenoid
The Yamaha 150 has both a manual choke and an electric choke. The manual choke is used to provide a small amount of throttle along with closing the choke plates. The engine starts more easily with the manual choke and a little throttle.
The electric choke, however, may not always work as expected. One user reported that their Yamaha 150 would start with the manual choke but not with the electric choke. They tried adjusting the electric choke to match the manual choke's movement, but it did not work. The issue could be due to an old and brittle O-ring, which is used to attach the choke solenoid pull rod to the choke linkage. Over time, the O-ring can fail, causing the choke to malfunction.
To adjust the choke solenoid, it is necessary to verify that the choke plates are fully closed when the solenoid is activated. This can be done by checking the movement of the choke solenoid pull rod and ensuring that it is pulling the choke plates closed. If the choke solenoid is not functioning properly, it may need to be replaced or repaired.
Another user reported a similar issue with their Yamaha 150 electric choke. They could not find the connection between the solenoid and the choke lever, even though they could hear the solenoid actuating when the key was depressed. This issue highlights the complexity of troubleshooting and repairing Yamaha 150 choke problems, which may require expert knowledge and experience.
Keep Electric Cords Tangle-Free: Simple Hacks
You may want to see also
Explore related products
Cleaning and lubricating the spring assembly
To clean and lubricate the spring assembly of a Yamaha 150, you will need to first disassemble the spring components. Then, use an air compressor to blow away any loose debris and dirt. Next, use a solvent such as rubbing alcohol to remove any remaining debris or residue. It is important not to over-lubricate the spring assembly, as this can cause a tar-like buildup over time. Use a dry lubricant, such as Eezox, which is a synthetic CLP (Cleaner, Lubricant, and Preservative). Apply a light coat of the lubricant to the spring and rod assembly to prevent corrosion.
When lubricating the spring assembly, it is recommended to use just a few drops of lubrication at a time. This will ensure that the assembly is adequately lubricated without being excessive. It is also important to use the correct type of lubricant. While some people use regular motor oil, others prefer a dry lubricant that doesn't bond with debris. One such product is Frog Lube, which claims to not bond with debris.
Additionally, it is important to regularly clean and lubricate other components of the Yamaha 150, such as the clean-out plugs and drain plugs. This will help keep the entire system functioning optimally and prevent issues such as water infiltration and corrosion. For example, when storing the Yamaha 150 for a longer period, it is recommended to remove the clean-out plugs and spray them with silicone lube or another lubricant to keep them in good condition.
By following these steps and maintaining a regular cleaning and lubrication routine, you can help ensure that the spring assembly and other components of your Yamaha 150 are in optimal condition, preventing breakdowns and extending the lifespan of the equipment.
Opting Out of Nopec Electric: A Simple Guide
You may want to see also
Explore related products
Connecting the solenoid to the choke lever
In some Yamaha engines, the choke is activated by pushing the ignition key. In this case, you may need to connect the purple and white hot lead to the terminal board. However, it's important to consult the wiring diagram for your specific engine model, as the choke circuit may not go through the terminal board in all cases.
Additionally, the choke solenoid pull rod is attached to the choke linkage using an O-ring. Over time, this O-ring can become old, brittle, and fail, so it's important to inspect and replace it if necessary.
When the solenoid is activated, ensure that the choke plates are fully closed. You may need to adjust the electric choke to match the movement of the manual choke.
It's worth noting that some engines may have a primer solenoid instead of a choke solenoid. In this case, the RED lever on the primer solenoid should be pointing directly at the other end of the solenoid in automatic mode. When the key is pushed in, it activates the solenoid, allowing fuel to flow through to the intake manifold.
Understanding Electric Dipole Moment Calculations: A Simple Guide
You may want to see also
Frequently asked questions
The Yamaha 150 has both a manual choke and an electric choke. To use the electric choke, give the engine some throttle.
The choke solenoid may not be pulling the choke plates fully closed. Check that the O-ring attaching the choke solenoid pull rod to the choke linkage is not old and brittle.
The manual choke gives the engine a small amount of throttle along with closing the choke plates. The electric choke does not advance the throttle.
The Yamaha 150 Vmax has an electric choke.
Try disconnecting the linkage to each butterfly shaft and see if one carb is hanging up. If that doesn't work, try cleaning and lubricating the spring assembly.
![Rickson Gracie: Choke [DVD]](https://m.media-amazon.com/images/I/510SWYWT9WL._AC_UY218_.jpg)
