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Yamaha Raptor ATV Carb Cleaning with an Ultrasonic Cleaner

The Yamaha Raptor ATV boasts of the largest cc displacement of any sport ATV available. With a triple disc brake system under its ergonomic design, this ATV is not just built for speed but for precise handling as well. The ATV is easy to ride and is equipped with an electric push-button for easy start-up. To maintain their Raptor’s condition, ATV enthusiasts make sure that their bikes are clean, inside and out.

A clean, well-tuned carburetor is a key factor in the performance of your Yamaha Raptor ATV and nothing makes cleaning carburetors faster, safer and easier than an ultrasonic cleaner. Whether you operate a Yamaha Raptor ATV service shop or do it yourself, you’ll be amazed at just how thorough an ultrasonic cleaner can be in removing varnish, grease, oil and other contaminants from one of the most intricate assemblies on your Yamaha Raptor ATV.

Here you will learn:

  • How an Ultrasonic Carburetor Cleaner Works

  • How to Select and Set Up your Ultrasonic Cleaner

  • How to Remove, Clean and Reinstall your Yamaha Raptor ATV carburetor

How Ultrasonic Parts Cleaners Work on your Yamaha Raptor ATV Carburetor

Ultrasonic cleaners are used in a wide range of applications to remove virtually any soil or contamination by using the power of cavitation action. This is the term used to describe the implosion of billions of minute bubbles contacting carb parts being cleaned. The bubbles are created by generator-powered ultrasonic transducers bonded to an ultrasonic cleaning tank and typically operate at an ultrasonic frequency of 37 to 42 kHz (37,000 to 42,000 cycles per second).

When the bubbles implode contaminants are quickly and safely blasted away from wetted surfaces without damaging delicate carb parts. So tiny are the bubbles that they penetrate minute cracks, crevices and blind holes impossible to reach by hand scrubbing using conventional parts washers or aerosol sprays The ultrasonic parts washer will complete the job in less than an hour, meanwhile freeing you up to attend to other tasks. And it will do it in an environmentally friendly manner because the ultrasonic carburetor cleaning formula is a biodegradable concentrate that minimizes disposal problems.

How to Select and Set Up your Yamaha Raptor ATV Ultrasonic Carb Cleaner

Ultrasonic carb cleaners come in a variety of sizes from bench top units to a floor-mounted industrial ultrasonic cleaning machine, so you can select any size you need. Our most popular 1½ gallon models for cleaning one carburetor at a time are the TOV150-6L and EH150EL. Select an ultrasonic carb cleaner equipped with a heater to improve the ultrasonic carburetor cleaning process.

Whatever the model and size ultrasonic carb cleaner you use there are steps to take before cleaning begins.

  1. Fill the ultrasonic carb cleaner tank to the fill line (or approximately 2/3 full) with ultrasonic cleaner solution diluted per manufacturer’s recommendations.
  2. Turn on the iUltrasonic, set the heater to approximately 70°C, and operate the ultrasound for about 30 minutes to drive off cavitation inhibiting entrained air. Degassing is complete when bubbles stop coming to the surface and must be performed every time the tank is filled with fresh cleaning solution.

How to Remove, Clean and Reinstall your Yamaha Raptor ATV Carburetor

Step 1: Removing the Carburetor

Firstly, take off both the air filter housing and the air filter as well. Using a screwdriver, loosen the two screws to get access to the fuel tank. To do this, you will need to remove the two allen bolts securing the front panel with an allen wrench. Take the lights off to be able to remove the fender. You will have to unscrew the two screws to remove the front fender.

Remove the fuel tank cover. Using a screwdriver, loosen the screws in front of the radiator and the screw holding the tank together. The next thing that you will need to do is to disconnect the fuel line with the help of needle nose pliers. Take out the three bolts, specifically the two front bolts and one rear bolt to be able to lift the fuel tank. Save the washer.

Remove the throttle plate cover on the left side of your Yamaha Raptor carburetor by loosening the three screws holding it. You should now remove the two cables attached to the carb. Make sure you remember where they go. Loosen the clamps from the air filter housing to remove the Yamaha Raptor carburetor from your ATV.

Get the cable holder from the throttle cable. To do this, rotate the wheel counter clockwise and loosen the pressure on the cable then gently pull it out. Take your needle nose pliers and pull the cable holder out. Keep this in a safe place. Lastly, loosen the four screws to remove the two air intake tubes and pull the carb out.

You now hold in your hand, your Yamaha Raptor ATV carburetor.

Congratulations! You have successfully removed your Yamaha Raptor carb from your ATV! You may now proceed with the next step.

Step 2: Cleaning the Carburetor

Although you can clean your carburetor without any disassembly you will achieve the most thorough cleaning with partial disassembly to allow the solution into the float chamber. Remember that only surfaces that are wetted by the cleaning solution will be cleaned. Fine mesh baskets can be used to hold very small parts.

Set the thermostat to 70°C. While the solution is heating, place your carburetor parts in the basket taking care that they do not touch each other. Once the operating temperature is reached lower the basket into the cleaning solution and set the timer for 40 minutes. Cleaning time depends on the condition of the carburetor and may have to be adjusted.

At the end of the cycle remove the components from the bath. If they are not clean replace them in the bath until the cleaning is complete. Then rinse them in fresh water to remove all traces of the cleaning solution and allow them to dry.

Safety note: DO NOT reach into an operating ultrasonic bath. Instead remove the basket if you want to inspect or rearrange the parts.

Step 3: Reinstalling the Carburetor

Return the Yamaha Raptor ATV carb to its original position by adjusting the air intake tubes and tightening the four screws so that they stay in place. Insert the throttle cable with the cable holder into the carburetor. To do this, rotate the when clockwise and fit the cable holder inside. Use needle nose pliers to make things easier. Be sure that it will not budge once you close everything up.

Tighten the clamps from the air filter housing to ensure that your Yamaha Raptor ATV carb stays put. Return the two cables attached to the carburetor. After this, return the throttle plate cover of your Yamaha Raptor carb by tightening the three screws holding it to the ATV.

Return the fuel tank by attaching the three bolts back on the assembly. You will then have to connect the fuel line. Use needle nose pliers to help you with this process. After this is done, tighten the screws in front of the radiator as well as the screws to hold the tank together. Return the fuel tank cover.

Screw the front fender back on. Return the ATV lights. Fix the front panel by securing the two allen bolts once more. Lastly, return the air filter housing and the air filter to the ATV.

Admire the piece of work you just put back together.

Voila! Start the engine, and your Yamaha Raptor ATV should be good to go.

More Operating Tips

Oils that rise to the surface of the bath should be skimmed off and disposed of properly. When the solution becomes discolored or cleaning time takes longer it is time to replace it. Drain the tank and dispose of the spent solution according to local regulations. Take the time to remove sludge that settled to the bottom of the tank. Clean the tank using a cleaning process recommended by the manufacturer.

Questions: Contact the iUltrasonic ultrasonic cleaning experts at 973 821-4400

Disclaimer: This advice is not provided by a licensed mechanic. Follow at your own risk. We assume no liability for any damages caused by following the advice in this article.


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