How To Adjust Yamaha Pw50's Throttle Limiter Screw

The throttle limiter screw is an essential component for controlling the speed of the Yamaha PW50, especially when it is being used by children or beginners. While the original Yamaha part is recommended, it is possible to use a regular metric bolt as a replacement. The correct size of the screw is important to ensure the safe operation of the bike, with suggestions including a 5mm screw with 0.75 or 0.7 mm threads and a length of 20mm or 25mm, or an M5-.80mm metric machine screw with a length of 20mm.

The screw size is M5-.80mm with a 20mm length

The throttle limiter screw is an essential component for controlling the throttle power input on your Yamaha PW50. It's great that you're taking the time to find out the exact screw size, as this will ensure a precise fit and maintain the safety and performance of the bike.

Now, let's get into the specifics of the screw size: The ideal screw for the Yamaha PW50 throttle limiter is an M5-.80mm metric machine screw with a 20mm length. This screw size is designed to fit the throttle limiter perfectly, ensuring smooth and controlled throttle operation.

You can easily source this screw from your local hardware store or a Yamaha dealer. When purchasing, it's important to verify that the screw has the correct thread size of M5-.80mm and the optimal length of 20mm. This length ensures that the screw securely engages with the throttle limiter mechanism without being too long or protruding excessively.

Additionally, don't forget to pick up a jam nut that complements the screw size. This jam nut will help secure the screw in place and prevent it from loosening during operation. With these two components, you'll be all set to install the throttle limiter screw on your Yamaha PW50.

Remember to exercise caution when working on your bike, and always follow the manufacturer's guidelines for any adjustments or replacements.

The screw is used to control throttle power input

The screw can be purchased from a Yamaha dealer, or you can use a regular metric bolt from a hardware store. The screw size for the Yamaha PW50 throttle limiter is an M5-.80mm metric machine screw, with a length of 20mm. It is recommended to also purchase a jam nut to go with the screw.

The throttle limiter screw is located on the throttle housing, which is mounted on the handlebar. It is important to note that these screws can fall out, so it may be useful to have some spares on hand.

In addition to the throttle limiter screw, there is also an exhaust limiter that can be put in place. This restricts the top speed of the bike, so even if the rider cracks the throttle wide open, the bike won't get out of control. This can be a useful safety feature for beginners.

The screw is mounted on the throttle housing on the handlebar

The throttle limiter screw is an essential component for controlling the speed of your Yamaha PW50, especially when it's used by kids or beginners. The screw is mounted on the throttle housing on the handlebar, allowing for easy access and adjustments. Here's a detailed guide on this aspect:

The throttle limiter screw is specifically designed to control the throttle power input of your Yamaha PW50. By adjusting this screw, you can limit the throttle response, making it easier for novice riders to control the bike's speed. This is particularly useful for kids who are still learning throttle control or for those who want to set a safe speed limit.

Now, let's focus on the location of the screw. The throttle limiter screw is mounted on the throttle housing, which is located on the handlebar of your Yamaha PW50. This placement makes it easily accessible for adjustments while riding. You can simply reach for the handlebar and turn the screw to adjust the throttle limit according to your preference or skill level.

It's important to note that the throttle housing is the component that surrounds the handlebar grip and houses the throttle mechanism. So, when you're looking for the throttle limiter screw, you'll find it attached to this housing, typically near the base of the handlebar. This location ensures that the screw is within easy reach for quick adjustments.

In terms of the screw's size, it's recommended to use a 6mm screw with a lock nut. This size ensures a secure fit and helps prevent the screw from falling out. Additionally, the lock nut provides an extra layer of security, ensuring that the screw stays in place even during vigorous rides.

When purchasing a replacement throttle limiter screw, it's best to opt for the genuine Yamaha part. While you can use a regular metric bolt, the original Yamaha screw is specifically designed for this purpose and will provide the best fit and functionality. Keep in mind that the end of the screw should be tapered to work effectively.

In summary, the throttle limiter screw plays a crucial role in controlling the speed of your Yamaha PW50. By mounting the screw on the throttle housing on the handlebar, you can easily adjust the throttle limit to suit different riders' needs. Remember to consider the size and type of screw, and always ensure a secure fit to avoid any unexpected throttle issues during your rides.

The exhaust limiter can be used to restrict top speed

The Yamaha PW50 is a dirt bike designed for kids. It is recommended that a throttle limiter screw be used to control the throttle power input and help kids learn throttle control. The throttle limiter screw can be purchased at a Yamaha dealership or at a local hardware store. The screw size is M5-.80mm, and a jam nut is also required.

The exhaust limiter is just one way to control the speed of the PW50. Another method is to use the Yamaha QT50 ring and pinion gear, which provides more bottom end while limiting top-end speed. This setup is ideal for beginners and trail riding. Additionally, the throttle limiter screw can be adjusted over time to gradually increase the bike's speed as the rider becomes more experienced.

The combination of the exhaust limiter and the throttle limiter screw can help parents feel more comfortable as their children learn to ride. These speed-restricting methods allow kids to develop their throttle control and gain confidence on the PW50 without compromising safety. As the child's riding skills improve, the restrictions can be gradually removed, allowing them to experience the bike's full potential in a controlled manner.

In conclusion, the Yamaha PW50 throttle limiter screw size is M5-.80mm, and it plays a crucial role in controlling the throttle power input. The exhaust limiter is another essential feature that restricts top speed by limiting the exhaust output. Together, these tools help young riders develop their skills and ensure a safer riding experience.

The screw is compatible with Yamaha PW50 models from 1981 to 1990

The throttle limiter screw is an essential component for controlling the speed of your Yamaha PW50, especially when it's used by kids or beginners. While the PW50 has been in production since 1980, the screw size may vary across different models and years.

The screw size for the throttle limiter on the Yamaha PW50 models from 1981 to 1990 is specified as M5-.80mm. This screw size is compatible with the following Yamaha PW50 models:

• 1981 Y-Zinger PW50 H
• 1982 Y-Zinger PW50 J
• 1983 Y-Zinger PW50 K
• 1984 Y-Zinger PW50 L
• 1985 Y-Zinger PW50 N
• 1986 Y-Zinger PW50 S
• 1987 Y-Zinger PW50 T
• 1988 Y-Zinger PW50 U
• 1989 Y-Zinger PW50 W
• 1990 Y-Zinger PW50 A

It's important to note that the throttle limiter screw plays a crucial role in adjusting the throttle power input. The screw allows you to control the speed of the bike without restricting the exhaust output, which is a more effective method than limiting the exhaust output.

When replacing the throttle limiter screw, it is recommended to purchase the genuine Yamaha part to ensure a proper fit and maintain the bike's performance. However, in some cases, people have used a 6mm screw and a lock nut as a temporary solution when the stock unit was lost.

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