Retro KX500 Supermoto Build... Ride and Details! (Big Bore 2 Stroke Sound!!)

I made a major overhaul to my KX500 Street Legal Supermoto, adding a {newer} refreshed 1993 engine, graphics, plastics, and more!!
Thank you for following along, and I hope you enjoy the Big Bore 2 stroke content!

[@WuKuVex]

literally my dream bike. youve made it. exactly with those parts. and PLEASE dont but the generic pointy new style rear fender into it. those 90s slightly curved fenders and curves are the best looking there are.

[@WuKuVex]

**HUMBLE BOW**

[@mototoad1242]

I can smell the 2 stroke fumes all the way down here in fl

[@ApolloCrowe]

love the graphics and retro look. Im thinking gold or blue wheels. Bravo on the chrome spokes, worth it.

[@Calthecool]

It lurches forward like an angry pitbull on a leash! That thing is an absolute beast.

[@wavyboijohn8403]

🚫🧢

[@WuKuVex]

thats the most beautiful and comfy af looking supermoto ive ever seen!

[@leoo8552]

This Vintage design with those colors is looking very beautiful. Such a awesome bike! :)

[@ickleshouse]

Had all sorts of bikes over the years but my next is defo Super Moto, still not sure if it will be 4 stroke or 2 stroke but both seam soooo much fun without going 100 + mph, thanks for taking the time to put up you videos dude. Subd.

[@garrettparker8223]

That’s a sick build I’m gonna do one with my Rm125

[@jampakdd]

Loving the look! Im trying to build a teal and pink bike like the old cup design XD Great job

[@rs5001988]

Love it dude nice work 👌

[@monsoursaleh3859]

How do you have only 1.9k subs. This is honestly some of the best super moto content I’ve ever seen.

[@mrobertson188]

That's got to be a beast to ride

[@marcoveggetti1320]

Fantastic motor bike!!!!!!!!!😍😍😍

[@Kevin-cn7nb]

I miss my 500,was in pain everytime I got of it.

[@firerejack1121]

Looks banging as a supermoto

[@andrewsiasparks]

I love the clear gas tank

[@Giant2020creepin]

Nice bike far out!

[@ThatRandomMan1]

The plug fouling is from you putting around, 2 strokes are meant to be opened up

[@Diego_CS]

I LOVE this bikeeeeee👌👌👌👌

[@waltwalt9632]

Love the power wheelies

[@bumpstartnether]

It has almost too much power!

[@MrColdwatercanyon]

I know the factory Baja set up they used a 16 tooth drive sprocket it barely fit with some micro machining to the case with a mill . Anyway that would be great on the street

[@mototoad1242]

she sounds CRISP

[@nerfmaster33]

Wow that bike is mean af! Would love to have one of those here in the Netherlands 🤣👍

[@ickleshouse]

same here, uk

[@nerfmaster33]

@@ickleshouse ride on mate! You will achieve your supermoto dreams.

[@tiger_ghost1355]

Get this man to 2k

[@Malibus_Most_Wanted]

also can use the kdx rear fender on the 500 and have a nice factory taillight n rear blinker set up

[@stefanopallini814]

Spettacolo 🇮🇹👍

[@angeldzm]

Dream bike

[@FixDylann]

Thing is a monster

[@DanielMartinez-it8od]

That's dope

[@sakunem9702]

finally someone who knows how to ride 2 strokes

[@errxrx]

Hold the clutch always if you dont pull the gas beatiful bike

[@steve-o6115]

You can engine brake on a 2 stroke (if jetted correctly). Just dont do it at top rpm or when cruising downhill.

[@jayplexy5983]

@@steve-o6115 Finally someone who has actual knowledge of 2 strokes. Unlike all of the people who think the engine is gonna go up in a nuclear explosion if you enginebrake for 5 seconds.

[@Leonardo-rk7gn]

@@steve-o6115 differnt kind of engine br(e)ake then XD

[@steve-o6115]

@4*2* 0 Not really the engine is still getting fuel/oil. Just not as much. And with a 2 stroke there is A LOT of oil residue in the cilinder and crankcase. But when the engine is jetted to lean there isnt as much oil left.

[@JmnNatu]

@@steve-o6115 You can't engine brake a 2-stroke at all unless you're running it rich as shit. Even then I wouldn't do it.

[@loniloco]

linda moto, parabéns.

[@robertwright7679]

Sounds just like my 02 kx 250🤤

[@jcpenny8661]

It's a crf 500 dummy

[@FULLTHROTTLEFILMZ]

Love your 500 Supermoto 👍🏼 makes me want to put a 500 engine in my cr250!

[@bumpstartnether]

FULL THROTTLE FILMZ thanks Mike! And your CR250 makes me want a white one. Just watched your Lectron carb vid the other day and I’m def gonna buy one for this beast. Your CR sounded so crispy.

[@FULLTHROTTLEFILMZ]

Bumpstart 'n Ether oh heck yeh a Lectron on that thing would be sick! I took mine out on a track Monday and it rips so smooth I love it. I don’t think I’ve ever seen an all white kx500 before 😳

[@bumpstartnether]

FULL THROTTLE FILMZ I’m gonna have to get a Lectron then. And nah I mean I want an all white CR250 with CR500 engine! 🤯

[@kevinkev1530]

Nice man, any updates on the other supermoto build!!!!!

[@holdenbostocky1998]

That’s a badass bike dude. I’m with you on the tank but what are you gonna do, it gets no mpg. And the Tusk gaskets aren’t that bad, no issues with me. The retro look is sweet maybe get some like gold wheels to match the plastics

[@ApolloCrowe]

Amen!

[@Jake_203]

This bike is just so beautiful!! Awesome! I wish I could do the same build, but impossible to get this thing street legal in germany😭

[@bumpstartnether]

It sure is a blast!

[@Jake_203]

@@bumpstartnether i hope I can own one someday 😅

[@Motovlog_69]

U might be able to get that tank like Lamanated or somthing and get it painted

[@lazarmrsic5623]

Oh yea thing is sick saw the yz85 on attention deficit vid on the vid where they rode groms

[@bumpstartnether]

Lazar Mrsic yep! I was on the YZ85 supermoto on the ride with Fooligan in Columbus.

[@lazarmrsic5623]

Bumpstart 'n Ether yp and fooligans vid that things rips

[@marcocente2928]

That is beautiful. I really like transparent tanks on dirtbikes I don't know why so many people hate them

[@bumpstartnether]

It's also functional as a fuel gauge!

[@MV-ri7zu]

Because it looks fkin terrible...

[@davidroeder7299]

What oil/gas ratio are you running?

[@senseimaruchan3979]

what did you hone out your 500 too because this is my dream and i need to know🤝

[@tehi_kemexi3947]

you should paint the tank green amd leave a stripe from top to bottom unpainted ao you see how much gas you got

[@coreygaming5355]

Why so underrated?

[@jasonpark5692]

Don't fear the bike, Fair people in cars!

[@jasonpark5692]

Fear. Lol

[@minibikemadman]

How did you register it?

[@Davor95]

That tank its not that bad😁

[@bumpstartnether]

Dawid C 🤷🏼‍♂️ I guess not

[@ludwig6040]

Great bike and pretty unique I would say. Can u tell me where you bought the headlight? I love that “retro-nolightmask-style”. Greetings from Germany.

[@bumpstartnether]

Headlight was an 18W LED bar "Amazon Special" ... about $20 USD if I remember...

[@ludwig6040]

Bumpstart 'n Ether is it maybe this one? www.amazon.de/Arbeitslichtleiste-BeiLan-Arbeitsscheinwerfer-Flutlichtstrahl-Offroad/dp/B07L6B5MNW?th=1&psc=1

[@bestbuds333]

You live in Columbus? That looked like the chief leatherlips monument. Small world.

[@shawngraham4902]

These bikes are fast and reliable They do eat stock clutch baskets and kickstarters but what open bike doesn't

[@SuperHaydenLee]

What is the song called at the beginning ? Anyone?

[@doria500]

Damn it's actually scary how powerful it is!

[@gbikelife5727]

Wears the yz at ?

[@harold8956]

Expensive but have you considered one of the "jetless" style carbs like a smartcarb or lectron? Might help clean up the mid and fouling plug issues. They do claim better fuel economy to. Edit: sorry just watched the end of the video and saw you mentioned a lectron. Love the builds eh, look forward to more

[@bumpstartnether]

Desmond Wright funny you say that: yes, currently doing a bunch of research for a Lectron carb. I’ve seen them getting super popular recently. Everyone has been reviewing them as “worth the $$$ all day, you won’t regret it”

[@harold8956]

@@bumpstartnether yeah that's exactly why I mentioned it. I have no experience with them but they have my interest piqued for my bike with all the good I've been hearing. Hard to say, jetting is a useful skill to have.

[@javarcouturier5852]

Run smaller jets to lean it out

[@gompie250]

the intake boot looks like having a crack @ 10:58 make sure it doesnt leak!. nice bike anyways!

[@bumpstartnether]

Secret's out! ... I already ordered a Boyesen RAD valve! It's gonna replace that cracked rubber boot and I'll have carbon fiber reeds.

[@charlesgunzelman3323]

@@bumpstartnether RAD valve is awesome in the woods, doesn't really do anything for your top end though, and some people say it hurts top end.

[@Sadieslays.]

How did you make it street legal been debating on getting a kx500

[@bumpstartnether]

Mine came with a street legal title!

[@user-wb2cs8ws4r]

Song?

[@muskratt6326]

If u want to make it look more retro than it already does you should put an oem front fender and number plate on

[@rcuniversespeed9447]

what pegs are those from?

[@bumpstartnether]

I believe they were for a YZ450F that I modified to fit. I later went with IMS Pro Series pegs.

[@MatthewMenze]

Do you have a link to where you got that seat cover?

[@bumpstartnether]

I custom built it on motoseat.com website.

[@dtr125]

I know no-one buys a 2-stroke for an economical run-about, but just curious what kinda of gas mileage you get on that beast? (I heard a story once of someone road registering a Honda CR500, and it supposedly only done about 11 British/UK MPG).

[@bumpstartnether]

Paradox funny you ask.. I think I’m getting MAYBE 15-16 MPG. It’s more about the smiles per mile.

[@hidros1461]

2:25 what's wrong with idling? Sounds sick

[@bumpstartnether]

Fiveoh5 idling a two stroke just sits there and if the netting in the carb isn’t perfect, can “load up” the spark plug and cause fouling.

[@nicholasyoung3762]

You should do a moto build on a cr85RB

[@bumpstartnether]

nicholas young I have a YZ85 supermoto build up on my channel, but a CR85 would be cool!

[@joec4212]

What kind of reeds do u have

[@bumpstartnether]

joe c stock reeds right now but I have Boyesen RAD valve I’m going to install this week.

[@Nick-Edwards]

okay i have a kx500 and if i were to to make it street legal, what all would i need to do to it?

[@bumpstartnether]

Nick Edwards it all depends your state and local laws. Ohio is pretty lenient.

[@Nick-Edwards]

Bumpstart 'n Ether you wouldn’t happen to know anything about indiana would you?

[@dieselboy335]

you should get a lectron carb, better fuel economy and no jets= no plug fouling 🤙

[@dieselboy335]

it’s beyond worth the 500 bucks

[@bumpstartnether]

Nick Tarasyuk ok I’m torn between Lectron or SmartCarb... lectron is a few hundred cheaper. I NEED to buy one soon though, gotta bite the bullet and end the frustration.

[@arran951]

What colour is the frame

[@bumpstartnether]

arran knight it’s a gunmetal gray color. Generic paint

[@CZwies20]

What if you run out of gas

[@bsracingteam757]

The yellow graphic on the cycra mask, did you buy it or cut it your self?

[@bumpstartnether]

I cut it myself. Same as the side panels.

[@bsracingteam757]

Thanks, dude. I'm building a KX 500 supermotard too. Do you run it on the track ? Do you use a other jetting on the track ?

[@bumpstartnether]

@@bsracingteam757 nah i just ride it on the streets. I have a CR500 sumo now that I’ll track though.

[@bsracingteam757]

@@bumpstartnether cr 500 sick for the track. Never saw one as a sm on the track in germany. Pink graphics look way more sich on a KX 500. My buddy made a video about my KX 500 : kzbin.info/www/bejne/oGqudniPeNCpbac would like it if you would check it out. After i saw your KX 500 SM clip the idea was born to get a KX 500 and build a Supermoto. Thanks for that boi.

[@rasmussaaristo5200]

What mirror is that?

[@bumpstartnether]

Rasmus Saaristo Acerbis dual sport/enduro

[@lengaming1651]

Any updates soon?

[@bumpstartnether]

Yes, gonna get new vid out very soon.

[@codipurple3644]

🔥🔥🔥🔥

[@Henrik.Yngvesson]

What is the fuel consumption for normal street riding?

[@BM205]

I was wondering how many miles per tank you were getting too. That's a very unique build man I bet it's a blast to ride!

[@Henrik.Yngvesson]

@@BM205 I don't speak freedom-units but my moped with an 86cc takes up to 0,5 litres/10km, was around 0,2l/10km with 50cc untuned so more than twice as much now. I'm building a Suzuki GP125 at the moment that I'm going to tune as much as I can, and I built a larger tank for it which holds almost 20l which is about twice the original tank.

[@bumpstartnether]

Henrik Yngvesson I’m running a 3.8 gallon tank and I don’t know exact but I get about 15-18mpg. NOT good at all. But the smiles per mile is worth it.

[@pablonunez6481]

I got a 86 cr250r I want to do the same thing to it

[@bumpstartnether]

Pablo Nunez that’s awesome I hope you do! I want a CR250!

[@MOTO_MAVERICK53]

Kps stands for Kawasaki powervalve system

[@cademckenzie2572]

why not slap a lectron or smat carb on? itll even do a bit better one fuel economy.

[@bumpstartnether]

cade mckenzie I hope to order one soon!

[@bigboybikelife1680]

Are you the guy I raced a cooper on my kx450

[@bumpstartnether]

Yes I am

[@bigboybikelife1680]

Lol well you get a sub from me

[@power9346]

Top speed?

[@bumpstartnether]

Juanma 93 not exactly sure, but I was neck and neck with my buddy at 100mph

[@jackblack375]

sounds fuckin crisp. Take some footage on some twisties when you get the kinks worked

[@candiceeckhart5881]

It does seem like it's bogging I rode one the other day and it ripped

[@bumpstartnether]

Candice Eckhart I think its time for a Lectron carb?! 😉

[@mechanic4744]

@@bumpstartnether oh hell yeah!

[@raybla]

Bumpstart 'n Ether what size carburetor is on this thing? I have a 38mm on my 125 and it hauls.

[@bumpstartnether]

ray bla 38mm on a 135?! 👀 woah. I have stock 38mm PWK on this.

[@raybla]

Bumpstart 'n Ether its a build mikuni tmx carb, reason why its so big its because of the power valve. Smaller carbs didn't really handle well when it fully opened.

[@jose-pr8955]

Top Speed ?

[@bumpstartnether]

Jose-PR not 100% verified yet but I passed my friend at just over 100mph on his speedo

[@mikesauve5793]

I had a 93 meanest dirt bike I ever owned

[@bumpstartnether]

Mike Sauve mean is a really good word to describe it!

[@marcoveggetti1320]

Which carburetor has?

[@bumpstartnether]

Keihin PWK 38mm... I plan to buy a Lectron 40mm soon!

[@marcoveggetti1320]

Bumpstart 'n Ether, good man!!! I can’t wait for your video to come out. Thank you from Italy🇮🇹

[@veggio6570]

cooos io mo chiamo veggiotti e per un attimo ho pensato che fossi qualche mio cugino sperduto

[@1fiddysquiddy386]

Where u at bro need some new content

[@bumpstartnether]

New content coming very soon! Been away training for a few months. Hint: new mods rhyme with Smectron and Smoyesen.

[@1fiddysquiddy386]

@@bumpstartnether bet

[@kaiyan299]

I have a question is that a 6-speed or a 5-speed?

[@bumpstartnether]

Kaiyan a It’s a 5 speed

[@kaiyan299]

@@bumpstartnether oh that's different my YZ85 is a six-speed but thanks for telling me

[@bumpstartnether]

Kaiyan a I think you may be talking about my other video? This is a KX500 which has 5 gears, my YZ85 has 6 gears

[@kaiyan299]

​@@bumpstartnether I also have a yz 85 04 with a 110 bore and geared Higher

[@motochallen6443]

ur prob fowling plugs bc no rmp to clear all the burnt oil out

[@bumpstartnether]

Motochallen64 I need to rip her!!

[@slav4o446]

How many gears does it have?

[@bumpstartnether]

Slavi13 5 gears, it’s a vintage motocross bike, NOT wide ratio.

[@slav4o446]

@@bumpstartnether okay thank u!

[@JohnDoe-iw5jg]

Bumpstart 'n Ether what’s the difference if you don’t mind me asking?

[@bumpstartnether]

John Doe having a 6th gear like a KTM 300 XC-W helps enormously with RPMs on the street and a whole factor of things. Can also have a 5 speed with different teeth numbers that essentially do the same effect of lowering RPMs (ex. KDX250)

[@JohnDoe-iw5jg]

Bumpstart 'n Ether oh okay thanks.

[@peteivanov53]

Bro why don’t you go into the powerband and hold it not just short shifting

[@wesleykrutko9631]

dublin ohio?

[@xtcrider8270]

Post more

[@05phoomrutgunz81]

Dtraker 500

[@ThatRandomMan1]

Also, stop engine braking before you destroy a freshly built engine

[@bumpstartnether]

Jerod Hamilton I try not to engine brake as much as I can. Sometimes a little here and there is necessary in the situation. For the most part, I always pull in the clutch and coast.

[@ThatRandomMan1]

@@bumpstartnether that's understandable, a little here and there shouldn't hurt it

[@vitsimies]

Too much engine braking on 2 stroke

[@nolankraeker8501]

What theres way more engine braking in a 4 stroke

[@pamppis751]

dont engine brake

[@nicholasyoung3762]

No such thing on a 2 stroke.

[@jerolehmuskoski5108]

kela

[@koul_2482]

@@nicholasyoung3762 i think you mean 4 stroke

[@nicholasyoung3762]

Koul_24 huh?

[@koul_2482]

@@nicholasyoung3762 you dumb for saying no engine braking on 2 stroke.

[@carlgriffith4660]

YOu need to get rid of that bike, if I were you I would sell it immediately..........to me! Sell it to me!!!

[@bumpstartnether]

It’s dangerous! I must sell it ASAP! 😂

[@carlgriffith4660]

@@bumpstartnether I am always in the market for a good KX500 supermoto. I don't know why but there is something about that single bore 500 two stroke that can't be replaced by any other engine. I love a big bore two stroke and prefer the KX over the CR.

[@bumpstartnether]

@@carlgriffith4660 I agree 💯. I’m mostly kidding bc it’s going to be VERY difficult to sell. Every time I ride it, I am grinning ear to ear. I’ve made a few improvements since this video as well, so I’ll have to do an update soon!

[@carlgriffith4660]

@@bumpstartnether sounds good, looking forward to seeing it. Enjoy that beast and keep the rubber side down!

[@goldster2781]

Why new new new new it's so stupid

[@PETERNESS]

that damm music is awful nice bike crap music

[@Pg-ug6lw]

DONT BE SUPRISED IF YOU GET HIT BY A CAR. YOU DONT USE YOUR ONLY MIRROR, THIS BIKE DOESN'T HAVE LIGHTS, NO BLINKERS, like where i am from this kind of stuff is very illegal. How can you drive on the road? It doesn't make any sense to me. You drive on the road but don't indicate where you going. how people should supposed to know where are you going? If you dont indicate?