Riding a Fuel Injected 500cc 2 Stroke for the FIRST Time!

Adventure Ride Experience
9 followers
2 Video Views·Dec 30, 2025
We ride our Fuel Injected 500cc 2 Stroke Motocross bike for the very first time...and it might well be the most fun big bore dirt bike we've ever ridden! We love a dirt bike build project here on 999lazer, so far on the channel we've created the 700cc Megalodon and the YZ500 YZilla. Our mission for 2023 is to build the most advanced 500cc MX machine in the world; with a fuel injection system, counter balance shaft, power valve and an electric start. To fit in with our monster theme we are calling this bike KONG! In this episode of the project we are finanly hitting the track on our BRC Racing powered 500! Max and Sean are in for the ride of their lives. We hope you enjoy watching as much as we enjoyed filming! :-)
I've never ridden a fuel-injected 500.
In fact, before this year,
I didn't even know they existed.
So naturally, we decided to build
our very own fuel-injected 500,
and today, we're gonna ride the beast
for the very first time.
How will it perform?
What will it feel like?
And will it ride better than the other 500s
we've ridden before?
Those are the questions we're gonna answer today.
Let's hit the track.
Whoa!
I think we've become addicted to big, bored two-strokes.
Over the past few years,
we've built a mean collection of beasts
that includes the Megalodon 700 and the Wyzilla 500,
and in order to complete the collection,
we've been building a fuel-injected 500cc two-stroke,
and to fit in with our monster theme,
we've named this thing accordingly.
This is Project Kong.
So far in the series, we've teamed up with Sean Smith,
who stripped down our donor bike
and got her ready for rolling shore of hardcore racing
to complete the motor conversion.
It was then back to Sean to begin the rebuild,
and although we got the bike started and fired into life,
we didn't quite get everything finished in the last episode.
Right, so before we go ride Kong,
we need to make her look pretty.
So that's the plan today,
because we've just got our last delivery from 24MX,
one of our awesome sponsors.
We've got a big box of bits over there
that we're gonna fit to the bike today,
but once again, I'm gonna leave that to Sean
and to Phil, Dad, who's behind the camera right now,
to do that in the workshop,
whilst I'm editing this video, which is Kong episode two.
You're watching episode three right now.
When we're doing these weekly uploads,
it can sometimes become a bit of a race
to get them finished in time,
and we're in one of those situations right now.
So I'm gonna stay here, work on this edit,
and I'm gonna hand you over
to the guys in the workshop right now.
So our box of goodies from 24MX
included Motormaster brake discs, Michelin tyres,
ODI lock-on grips, and much more.
You really can get everything you need
for a rebuild from 24MX.
We also got a gorgeous set of harm wheels
from Roland, who is the UK importer.
The boys had absolutely no problems at all
fitting the tyres onto these wheels.
Isn't that right, lads?
Once the tyres were fitted,
Sean could really get cooking.
Kong was finally starting to come together,
and the final stage of the process
was to fit the graphics that were designed and printed
by a local family-run company, LR Designs.
Yeah, just putting the graphics on here, as you can see.
It will be revealed later on.
Just wanna shout out to LR Designs,
who actually smashed out
this awesome gorilla effect of graphics.
I think it's, yeah, bang on.
So we're putting the personalised seat on from 24MX.
Got the Kong logo.
So let's bang it on.
I think he's gonna love it.
Yeah.
Who's gonna be the first to ride it?
Me.
I've done all the work.
Sorry, man.
So there we have it, Kong in all its glory.
Obviously, we've got some trick parts on the bike,
like the 20 titanium foot pegs from 24MX.
You can actually get 10% off a pair of these
if you use my code MAX10 on the 24MX website.
I'm honestly so pumped on how this build came out,
and hopefully it rides and sounds as good as it looks.
This build really was made so much easier
thanks to our awesome sponsors, 24MX,
and their massive range of products.
So if you're currently in the process
of doing your own build,
be sure to check them out
for all your hard parts, accessories, and much more.
So the next stage in the process
is to fill the bike up and gently run her in.
But you guys don't want to see that boring bit, do you?
So let's fast forward to the first real rip.
And as promised, Sean will have the honor
of taking Kong on track for the very first time.
Come on then, Sean.
Awesome.
Yeah, it's pretty good.
Really good.
We were just running it in at the minute,
but yeah, it's very, very good.
Sean actually has the honor of being the first man ever
to ride this bike.
Well, the first of our crew, anyway.
Firstly, how does that feel?
Awesome.
He's jumped the gun before me.
Well, I had to.
I did most of the work.
It's too wet for me, anyway.
About the case.
Oh, man, I had to get a lawyer for that one.
Just explain what you've done, Sean.
Yeah, there's a new triplet.
It's not very big, but it's quite long.
And I see Walt Beeney do it the other day,
and I've been on the 500.
On a 125?
On a 125, yeah.
I thought, I'll smash that on this 500,
and yeah, it didn't quite make it.
And a big old case, but it stayed on,
and it soaked it up.
Why didn't you make it?
I don't know.
In my infinite wisdom, I thought,
I'll do that in second gear,
and it ran out of rev, basically,
and I should have been in third.
But yeah, but then done a lap
with a very high-pitched voice,
and then that was it, basically.
Well, it's a shame we didn't get it on GoPro.
Oh, no.
Oh, you did?
Yeah, fortunately.
Okay, so you can see Kong is dirty.
Kong has been ridden for the first time.
Sean's had the honour of doing that.
Just run the bike in, sussing it out.
Track's a bit slick at the moment,
but it's coming around quickly,
so we're gonna get out there in a minute,
lay down the hammer,
and really learn what Kong is like on track,
and then we can try and compare it
to Wyzilla, the Megalodon,
the other bikes that we've got.
So, game on.
Come on, let's go and spin some laps on Kong
and find out if he is king.
So, we are on track, finally!
Let's get around this subtle corner.
Oh, God!
700 fuel-injected two-stroke.
The first day on track for us.
Oh, oh, oh, oh, oh, oh, oh, oh, oh, oh, oh, oh, oh, oh, oh,
The grits are there right now!
The format of the day.
Me and Sean Smith.
Our top-kick mechanic and bike builder.
We could not have done this project without him.
We're gonna take a turn riding the bike today.
Getting to grips with that.
But, luckily there's a few things for us
to figure out and get used to.
Obviously,
this is a TBI fuel-injected machine.
No carb on this baby!
So, that power delivery is something
we're gonna get our head around today.
Of course, this bike started out life as an enduro machine.
Rehab.
So, obviously, at the moment,
we're running an enduro suspension.
So, we're gonna figure out what that feels like,
what we want to change there.
Well, Sean, my bike's a little tall.
Let's be honest.
We're very surprised at how tall the bike feels.
Sean is somewhat vertically challenged.
We'll see how he gets on with that.
And then we're gonna be thinking about really,
mainly, the main focus of the video
is to think about how this thing compares
in all aspects to the YZilla YZ500.
So, that's the focus for today.
I'm gonna crack on, spin some laps,
let Sean have some fun with the bike he worked so hard on,
and enjoy the power of a fuel-injected 500 two-stroke.
Right, so we've done a few sessions now on the Kong 500.
Going well so far.
Both really enjoying it,
getting to grips with how the power delivery comes in.
Obviously, the suspension, it's enduro suspension.
It's holding up well out there.
We're gonna do a few more sessions of filming now
just to get the shots,
and then we'll have a discussion in depth at the end
about what we really think of this bike
and how it compares to the YZilla 500.
So, see you at the track again.
So, if it's not plainly obvious,
we were both loving life on board Kong.
The thing really is a wheelie machine
and provides smiles for miles.
But whilst I was spinning laps,
I just couldn't stop thinking about
that future shootout against the YZilla 500.
But before Sean and I start comparing
the two BRC-powered beasts,
let's have one final rip.
Kong is alive and kicking
and sounding oh so good.
I'm sure you guys will agree.
And once again, I need to say a massive thank you
to our awesome sponsors that have made this possible.
24MX for all the help with the hard parts and accessories
and Puteline for providing us with the best oils
and lubricants to put inside our machine.
Sean and I were like kids fighting over our favourite toy.
Neither of us wanted to stop and share.
That's just how much fun we were having.
But let's sit down and talk through our thoughts
after a day in the saddle
of our newest monster two-stroke.
What a day, Sean.
Awesome.
Kong has been christened
and it might be king of the two-strokes,
but we'll get into that in a bit.
But first of all, what an amazing day, right?
Yeah, fantastic, yeah.
It started off a bit hit and miss with the weather,
but sun's come out in the end,
the track was prime
and we've both spent quite a lot of time
in the seat of Kong.
At first, Sean, we was worried a little bit about you
because it was sitting quite tall this morning, wasn't it?
But no problems in that department in the end.
It looked incredibly tall
and when I got in it, I thought, you know.
Can't touch the floor.
Good struggle.
But once you're on the bike, no problem at all.
It didn't, yeah, just felt at home on it.
Suspension was one of the areas
that we was a little bit concerned about coming into today.
We're not concerned about,
but we want to look at
because it's got the enduro stuff that we started with
and we haven't changed it yet.
That's a plan for the future.
There's not too many massive jumps here,
but there's some heavy landings if you overjump.
But it seemed to handle it quite well, right?
Yeah, couldn't fault it, really.
Obviously, it wasn't that rough, was it,
for it to work the suspension hard,
but yeah, no, really good
and it handled what we threw at it.
The main thing people wanna know about is that power,
the power delivery.
What does a fuel injection change
compared to your carburetor two strokes?
I thought it was pretty fun out there, right?
What did you think?
I just thought it was awesome, yeah.
Couldn't fault it.
Small battery, wasn't it?
Yeah, and there was just,
with it being fuel injected, just,
I don't know, it just seemed instant everywhere.
Even sitting under the audience this morning,
just revving it up, it just sounded sharp.
It's amazing, isn't it?
What BRC have done with these bikes,
with the counterbalance shaft,
big 500, but so easy to ride.
Like, I never in a million years
thought I'd be a 500 rider,
but I am loving riding these big bikes.
You've gotta give credit to BRC
because they've engineered that engine
and we have rode it all day, pretty much all day,
and it is faultless.
It has not missed a beat.
I'm, yeah, mega, mega impressed.
I don't think I've ever seen you
quite so impressed by a bike after a day's test,
and we've done quite a few tests with you now,
and at the end there, you was really happy.
Yeah, it was, yeah, I felt at home.
I like the Austrian chassis.
You know, it's one of my favorites.
You look really comfortable on that,
and it did feel comfortable.
The only area that we wanna try
and improve is the braking, right?
Yeah, we did, yeah.
It didn't stop, did it?
And that's nothing against anything,
I think, because everything's so new,
you know, you just gotta give time
for everything to bed in,
but yeah, there was a few heart-stopping moments,
I must admit, but yeah, all good.
Outside of the BRC guys in Canada,
I think we are the only people in the world
with one of these fuel-injected 500 two-stroke
and the Yamaha YZM500 that they've built.
I think that's right, correct?
So we're the only people currently with these two bikes,
so that's what people are gonna wanna see.
We're gonna do that video.
That's next on the to-do list, pretty much.
What are your impressions,
the difference between the two at the moment?
Obviously not riding them back-to-back, though.
I mean, they're both incredible.
They really are.
You know, once we got the Yam set up,
you know, awesome bike, absolutely awesome.
That today was just faultless.
It was fantastic.
It did everything we wanted it to,
but until you jump off that onto the Yam,
off the Yam onto the Husky
and, you know, give them a good workout,
I think then you're gonna know the true result.
It's gonna be a very interesting day at the track.
I cannot wait to do that,
but before we get to that,
there's one more thing that we're gonna do
to finish this build,
and the parts have arrived from Canada this week.
Currently it's a TPI injection, right?
And we're gonna turn it,
BRC have done a kit to turn it into a TBI injection.
So just explain to people like me
that might be a bit,
what the hell's that?
What's the difference there?
So the TBI basically is another throttle body
that doesn't use the fuel injection system
that they have developed.
It will run a pre-mix,
which, you know, for what we're using it for,
for motocross and things like that,
it's better for what we need.
Especially we've got other two-strokes in the garage
like we do,
which is easier to have a fuel can for everything, right?
Yeah, I mean, if you were a trail rider,
that's perfect,
because it is faultless,
but as we're not really using it for trail riding,
we're gonna use it for motocross.
TBI throttle body gets rid of all the auto lube
and all of that,
so it'll be interesting to see.
So one of the only issues,
let's call it,
we had today was obviously
this is a fuel-injected electric start bike,
but we haven't actually been able to start
with that electric start yet, have we?
What's going on with that, do we think?
The battery amperage, I think,
again, it's all new to us,
so we've just used the original battery,
which I don't think the amperage on it is high enough
to turn over.
I mean, it's now a 500,
it's no longer, you know, a 300.
And I just don't think,
well, it didn't spin it over fast enough, did it?
So we're gonna get a bigger amperage battery
and then the TBI mod,
and it should all be, yeah,
we'll see how we go, it should be good.
So if any of you watching at home
have some tips for us,
maybe the best battery to use on something like this,
just drop down in the comments down below
and give us some help,
give us some tips,
see if we can get this thing started
with a button instead of our legs, right?
I don't mind kicking it,
but some of the guys short of leg are...
Someone had to hold it.
Yeah, had to get a cool dad over every time.
So we'll do the TBI,
I think we'll get it dynoed after that,
and then we'll get on track with the YZILLA.
YZILLA versus Kong,
I know everyone wants to see it,
so that's gonna be the plan next.
So as always, guys,
I'll say a massive thanks to Sean
for all of his help building the bike,
thanks to Roland as well for all his help on the project,
and to everyone else that's made this possible.
My name's Max, this is 999 Laser.
Till next time, we'll see you at the track.
