Yamaha PW50 Full Review – What Kids Dirt Bike to Buy

This is our review of the Yamaha PW50 dirt bike. I’m sure a lot of you out there know that Yamaha have a lot of great youth bikes and there all really great for young kids to learn on.

If you have a youth rider who is just starting out or a very small rider and you want to give them a bike that’s going to be fun and very easy to learn on the Yamaha PW50 would be a really good option.

We thought it would be a good idea to go through some of these great bikes and complete a blog series to help you understand which one is going to be best for your youth rider. You can view all the reviews here.

We’re an affiliate. We hope you love the products we recommend! Just so you know, we may collect a share of sales or other compensation from the links on this page. Thank you if you use our links, we really appreciate it!

PW actually stands for peewee and the PW50 is easily one of the most popular youth bikes that is out there.

If you ask any current pro rider what bike they got started on, they’re probably going to tell you it was the PW50 and what’s great about these bikes is there’s a ton of them out there.

You can easily pick up a lot of OAM and aftermarket parts and accessories, so even if you do pick one up in pretty rough shape you’ll be able to get all the parts that you need to get your bike up and running and back into a good condition.

In this article we will give a little background history on the PW50, we’ll talk about the specs and we’re also going to talk about sizing. When it comes to these types of youth bikes one of the biggest questions people have, is what size rider or what age range is it going to be a good fit for?

Whilst reviewing I also used a couple of my kids as youth riders as a size reference to help you know what size and what age range is going to be a great fit.

We will also give you some tips and tricks to help you get the most out of this little bike.

What is a Yamaha PW50?
How much does a PW50 Weigh?
How much is a PW50?
What Age and Size is a PW50 for? 
Tips and Tricks for the Yamaha PW50
Frequently Asked Questions

What is a Yamaha PW50?

Yamaha started making the PW50 back in 1981 and they’re still making them today. What’s great about these is that they really haven’t changed anything over the years, so even if you find an older model all the current parts and accessories are going to bolt onto just fine.

The engine size of the PW50 is a 49cc air-cooled, two-stroke engine. It’s a very reliable motor and these things last forever. What’s even cooler about these is they’re very low maintenance.

You have a shaft final drive on the bike, so you don’t have any chain maintenance to worry about. It’s also auto lube oil injection, so you won’t have to mix the gas with this little bike.

On the PW50 all you need to do is fill the oil reservoir up. You’ll find it at the front of the bike, just behind the front number plate. You pour the oil in there and just put regular gas in the gas tank and then it’ll mix the gas for you. It’s very important that you do not let the oil run out. If you let that happen you could possibly seize the engine.

If you have a bike that does have a seized motor or it’s just not running correctly you can get a QA part cylinder and piston kit for about 40 bucks from Rocky Mountain. It’s a direct bolt-on replacement and we’ve used them in a lot of PW50’s over the years.

You can pick up the kits here.

Again as we mentioned earlier it’s not very expensive to repair these bikes if yours does need a little bit of TLC.

The PW50 has a very smooth engine and it’s easy for kids to learn to ride on. The bike is fully automatic, so there is no shifting whatsoever for the youth rider and they do not have to pull in a clutch.

It has two levers on the handlebars. On the left it’s your rear brake and on the right it’s the front brake. With the throttle you have a screw so you can adjust the throttle if needed. This is great if you have a youth rider who’s just learning and you want to prevent them from opening the throttle up too much and going too fast, making it safer for your little rider.

The PW50 is a kick start, it’s not electric start. The kick starter is down on the left side of the bike but you also have a switch on the handlebar to engage which is on the right hand side. You have the off, start as well as run positions.

Like I said earlier these bikes are really reliable. Our little PW50 is a 2002 model and this thing fires right up every time we kick it over.

With the suspension you will have about two inches of travel in the front as well as the rear and another great benefit of it being a two-stroke model is the bike weight.

How much does a PW50 Weigh?

The PW50 weighs about 90 pounds and that’s with the gas tank full. It has a 2.5 gallon gas tank and when you compare that to some of the other bikes in its category you can see how light it is.

Yamaha PW502-Stroke90 lbs
Yamaha TTR504-Stroke126 lbs
Honda CRF50F4-Stroke110 lbs

The Yamaha four-stroke TTR50 weighs around 126 pounds and the CRF 50 from Honda weighs 110 pounds. So the two-stroke PW50 is definitely a lighter bike thats going to be a little bit easier for those youth riders to learn on.

How much is a PW50?

You can pick a PW50 up brand new for between $1499-$1599 but as we said earlier they’ve been around along time and its not hard to find one secondhand. We picked our 2002 model up for $450.

Having done a little research on the internet we found 3 that were reasonably priced and in good condition.

2019$1150Local Classified Add

What Age and Size is a PW50 for? 

Now let’s look at who this bike is going to be a good fit for. One of the big deciding factors if you’re looking to get this bike is what size and age range is it going to be good for?

The seat height on the PW50 is 18.7″ and if you compare that to some of the other 50’s around like the Yamaha TTR50 you can see from the chart below it’s about 3.2″ shorter than that and it’s about 3″ shorter than the CRF50 from Honda. You also have the GR 50 from Suzuki which is about the same height as this bike.


To help with size and age comparison, I’ve used one of my daughters. I’ll give you her age and height so that you can use her as a reference as to what size rider or age is going to be a good fit.

My daughter Darcy is six years old and she is 3 feet 10 inches tall. When she’s sits on the bike she can easily touch her feet to the ground but is still comfortable with her feet on the pegs.

I’d say my daughter is right at the upper end as far as height goes for the PW50. With this in mind we would say age wise this bike is perfect for 6 years and younger and then height wise 3 feet 10 inches is at the tallest end of the scale.

Tips and Tricks for the Yamaha PW50

We want to give you a couple of tips and tricks to help you out to get the most out of these bikes and the first one is to open it up and letting it breath. The PW50 bikes come pretty restricted right off the showroom floor.

There are a couple of things that you can do to help get a little bit more performance out of the bike and one is with the restrictor plate. When you look at the exhaust header where it attaches to the cylinder, pull that off you’ll see there’s a restrictor plate. Taking that restrictor plate off is going to allow a lot more air flow to go through.

Then if you want to you can couple that with the silencer from FMF that you can get here on amazon. That’s also going to help this bike breathe a little bit better.

Also to get little more out of it’s performance another tip we have is with the carburetor. In these smaller bikes carburetors and jets are pretty small and they do gunk up pretty easily.

We always recommnd that it’s a good idea to go through and clean out those jets to help the bike run as best as possible.

If you’re going to be letting your bike sit for a long periods of time, it’s a good idea to drain out the float. That way you’re not letting gas sit in there and it will help prevent those from gunking up.

If you just want to replace the carburetor entirely and you don’t want the hassle with taking it off, opening it up and cleaning out the jets you can get a full replacement carburetor for less than 20 bucks. It’s a direct bolt-on replacement and those things work awesome. You can pick them up here.

They were a couple of things that you can do to help get a little bit more performance out of your bike along with some maintenance tips but now here’s some of the things that we put on our PW50. Some to help freshen it up cosmetically and some that we think are necessary.

First up we got some new grips on ours. We added the the ODI mini grips. You can get these in a lot of different colors and therefore you can pick which one you’re youth riders going to like or which best suits your theme.

The grips we purchase can be found here on amazon for $10.

We’ve also got new brake levers, as I mentioned earlier front brake and rear brake are both up on the handlebars and on our bike we added the Tusk brake levers as the right side was broken when we picked this bike up.

We replaced both and we’d always recommend picking up a few extra. If your little rider does have a tip over, the brake levers are typically one of the first things to be damaged and having an extra few lying around is going to help you out. They’re a very inexpensive part, in fact we get ours from amazon for $15. You can grab yours here.

The plastics on our PW50 were also pretty worn out and faded when we first picked it up so we’ve got the QA parts plastics kit on ours which comes with, your tank, your seat, your front number plate and front fender. So it comes with everything that you’re going to need.

You can get these here from Rock Mountain starting from $19.99

Then we top that all off on our bike with a graphics kit from attack graphics. Our kids absolutely love it when they have a custom graphics kit with there name and favourite number on.

Lastly is tires. Tires are something that we think is often overlooked with these youth bikes but having a good set of tires on any bike is going to offer more traction and grip for the rider and give them more confidence when they’re learning to ride.

The tires we added to ours are the MMG Set which you can grab on amazon for $44 here.


How fast will a PW50 go?

The Yamaha PW50 tops out at 28 mph. The mini dirt bike features a high torque motor engine allowing the young riders to travel at speeds at an average 15-20 mph depending on the terrain.

How much weight can a PW50 hold?

The PW50 is made for Children with a 25 kg weight limit (in the 3-6 age range)

How tall is a PW50?

Seat height:485 mm (19.1 inches) If adjustable, lowest setting.
Overall height:714 mm (28.1 inches)
Overall length:1,245 mm (49.0 inches)
Overall width:574 mm (22.6 inches)

That our overview of the Yamaha PW50. If you have any questions or comments about anything that we wrote in this post or maybe have some tips of your own, please share your comments below as they will help other people out.

To pick up any of the parts and accessories that we talked about click on the links within the article above. You can also check out our other kids’ dirt bike reviews here

The Warburton Family

Everything we write is tried and tested. We research everything before putting it out to the world. Thanks for reading :-)

Recent Posts