Thanks for watching everyone! Thumbs up this comment if you want to see me keep working on this thing and make it run better! Top speed video soon? Happy good Friday and Easter to those that celebrate!!

Use motorbike specific oil.. that oil will make the clutch slip... Which it looked very much was happening in your video

use proper motorcycle oil that car oil is not good for the clutch

Yep... Fuel delivery issue... And yep, never use standard oil, but always use motorcycle oil designed for wet clutches...

13:29 NO BRAKES! Tons of kids in front. Then full throttles it when passing them LMAO

My dad bought me one of these bikes when I turned 14 and I loved it. He paid also $150 for it and it had around 300 miles on it. Practically brand new. He bought it from his best friend who owned a used car lot. I rode that bike like it was a motocross bike, seriously, even sneeked onto a local motocross track many times and ran the mess out of it. Regarding hand starting. I could start mine up also with my hands, even when it was new, they just are little engines that are easily turned over. It was very reliable it never left me stranded anywhere. It's max speed on level ground was 54mph and for a 50cc stock that is faster than any 50cc scooter out there stock on the road today. I truly wish my dad would had put mine away in his shed for when I got older because I want it back extremely bad. Alot of memories for that bike and many fun stories of my childhood with it.

I got a 25 year old rx100. Damn,these things are beast. It does 100km/h tops

no front brakes.. bunch of kids .. and you decided to drop a gear and accelerate? XD

It will just take a little time to get all the bugs worked out. But SO worth it! Keep it up GoldGuy!

I would have oiled the filter but not the pre-filter. But that's just me. Nice to see that old stuff running!

great video thanks.Cool bringing old machines back to life. You live in a lovely neighbourhood. Respect from England.

Judging by the bogging and how easy it was to kick over... I think you have a compression issue. Might want to source some new rings.

Cool build for an old bike. This would make a sweet cafe racer, with an old school vibe, conversion project! Keep doing what you do!

3:27 Boom 420, great videos brother keep them up. Greetings from nl

That master cylinder was gnarly! oh my!! Nice video, Mason!

Like the vids! Keep on working on them old bikes. They're tons of fun. You'll stumble and learn along the way just like all of us.

Absolutely enjoyed it!

You reminded me to my uncle...he has suzuki rc 80cc and the bike sounded just like this..rip uncle johnson..1961-2014..

i love little bikes !

Damnit, now I miss mine, riding fast on a slow bike is a hoot, and thats about all these are good for.

Love these videos

The brake fluid issue was cause by a previous owner mixing dot3 and dot4 liquids together causing it to gel up and ruin your brakes, hope this helps

Just discovered your channel, great videos! Following for sure 👍

nice work! even though i like dirtbikes ,its very enjoyable too see ,cant wait for next part

We will see if it fits... Smash smash smash If not you'll make it fit 🤣🤣👍👍

I love your spirit young man ,you live in a nice neighborhood ...you are very blessed!!

You should find a Honda CT90 for your next bike! They're really great small CC bikes and they're loads of fun. Love your content anyway mate ❤

Dude the reason I suscribe to your channel was when you were putting some air into the rear tire and the funny big flame explosion haha you said he’ll not leaks too

Try to rinse tank again, add a fuel filter, and clean carb again before trying to rejet. That will probably fix the boggyness. I would start there first. Also great to see you using a rubber mallet and torque wrench in the last few vids. Thumbs up. The gunk in the MC is probably in the brake lines too. Try to clear the line if you rebuild the MC. Bleeding brakes on bikes can be tricky I had to reverse bleed my front brakes on my 78KZ650sr and finally cleared the air out of lines. Great collection of bikes

Was waiting for this vid

Use an impact wrench to get those tough screws out. Use the proper motorcycle oil. I use Castrol Power1 20w-50 4t in my 1971 Yamaha ht1-b 90.

Bleed from the banjo bold on top of the mastercilender of the front brake that worked really good for me also had no pressure at first even after bleeding

Hey GoldGuy, Thanks for this video. I got one of these RX50s recently (much better shape than yours :D ). This is a real streamer, love it!. I am interested in the ignition switch installation (someone replaced it with a simple switch), pls make a detailed video once you got there. Thx!

Love this bike super fast I have one til now. ☺️

Bore hone new piston rings clutch plates gasket kit complete new brakes all around repack ur exhaust take the dents out ur tank with pressure new plug original Airbox with original air filter and new tires and a new paint job then ur good

No brakes! Absolute Mad-Lad!

Do a compression test on that cylinder

I had one of those in 10th grade. I was 15 years old and drove it all over town. Video arcade was my favorite destination. Very strange bike I must say.

Good job. Sounds like clutch is slipping!

8:06 dont touch it it can damage ur hand brake oils never good for skin or anything

Don't over fill the oil ,get a new plug ,make sure the battery 100%, put in a new carb kit after you soak it in carb.cleaner,but a air cleaner,replace all the tubes and hoses on the carb .make sure the tank is very clean.

Subscribed!

great little bike.

you should up the mainjet now that you put on a open airfilter, the original jetting is for the closed airbox and therefor there will not be enough fuel for the increased amount of air that you now have, also you should probably rebuild the cylinder ;)

Even though this is very un proffesional its still very entertaining. Good job

Ouch that was kinda painful to watch. I think the clutch spontaneously combusted. lol. I missed the part where u added oil but yeah you should always use 2 cycle oil at around 25:1 ratio. I'm sure you're well aware of that. Brings back memories, my first "street bike" was a RX50 back around 1990 when I was 15. That thing was indestructible.

i cleaned a master cylinder that looked almost like that, except the crud was . . . crunchy. i cleaned it, then put fluid in it. the thing had compression because it would not move very far. i took it apart and found that the crud had made its way into the piston compressor chamber, and that same crud was everywhere. later on i found out that the break line ( this one had 2 sets : solid line and the rubber hose type to the brake cylinder ) , had a build up of crud at the union section ( nut screws on to the metal male break line ) , so i used a clothes rack wire ( a thick one to with stand the pressure i was going to put on it ) and straightened it out , put the tip of it in the metal break line and the tip of the rubber hose to clean it out. it had stopped it up. then took apart the break cylinder and removed the old gunky molasses ( old break fluid ) and cleaned the cylinder out. put everything back, filled it up , and now it works. BUT, now i have to take apart the break lines and use chenille stems [ pipe cleaners as i call them ] ( chenille light brown 50 pc. #158469 0.24 x 12 inch (0.6 x 30.48 cm ) ) to clean out the remaining gunk and make it clean again. but before i put it back together, i will soak the rubber lines in 303 aerospace protection ( because they do not make that type of break line anymore. ) to preserve the rubber for a longer time frame. submerge all of it for about 30 mins. take it out and let the 303 fluid drain into the jug, cleaned out milk jug [ gallon ] . ((((clean out the hoses before soaking )))) , and let hang over night for 12 to 14 hours, so the 303 can do its job. you wont regret it. also , clean that seat off good. then spray the 303 on it. respray it 30 mins later, and let sit over night for 12 to 14 hours. do the same for the tires, why ruin good tires when you do not have to. . . . [[[ yeas it will work on that type of rubber too ]]] . if you need the stems longer, just solder the tips together, just remove the fuzz first to make a better connection. as for the exhaust smoking alot, looks like you have to much oil mixed with the gas, causing the engine to die out. also probably from the amount of oil for the filter may have something to do with it . wrong type of oil to use in that engine. remove it , and put in the correct type. may have to do a clutch replacement now due to all the revving at such a really low movement. awesome video !! 1000 thumbs up !!

With that free-flow air filter, you are making it run lean. Which will destroy rings an cylinder pretty soon, cause 2-strokes get lubricated only through the lube in the fuel. Cut up some pieces of air filter foam to the shape of the original filter and put the air filter box back in there.

What they said ... about the oil and fuel mix . but more crucially the thingy you took out the exhaust , maby put it back concidering two strokes get all of their power from compression and the exhaust properties . so messing with that will definitely strip power. cool lil bike to have fun on tho

This will be the guy to upload a video in a year or two titled "how I lost my legs"

nice bro !!!!! beautiful motorcycle i have too 50ccm bike its called simson s51 enduro

very cool lookn bike!

clean the tank again.and use a little less oil in the mix.use oil made for wet clutch.remove and clean out the exhaust and reinstall the baffle how it was.

Oh shit there are no brakes *THERE ARE A BUNCH OF KIDS UP THERE*

I bet the neighbours love you :D

Yea, I put heavier springs in my clutch xP if I hit a bump it would slip. Lol my cable was properly adjusted as well. But using the wrong oil doesn't help xD

thats awesome! my first ever bike was a 2 stroke yamaha tzr 50 from 2006 so it brings back memories! whats the purpose of the air filter oil?

Try it without the filter intake, and setting up the carburetor. If the compression feels weak, maybe you must change the piston ring

That brake fluid has fermented by time and became cheese :))

prob mixture, good call bro

car oil has friction modifiers in it. you need to use v-twin oil designed for use with wet clutches. you will need to flush it twice. you will destroy the clutch using regular oil.

Did you move the chain adjustment all the way in before you fitted the new one? Also good practice to replace the sprockets at the same time, provided they are worn. Will help you get more life out of the new chain. Keep up the good work

You don't happen to have any suggestions on where to find a replacement RX50 carb do you. The one on my bike is shot and Mikuni no longer makes the VM16.

5:30 shouldn't you wait it to get dry before putting it on and ride?

Kids all ran away 🧸🎈

Does the carb not have a mixer screw you can adjust to let more fuel in?

oh man free seed spreader at 15:00

Cool

Brake fluid is Hydro scopic meaning it attracts water when the mix brake fluid changes from a liquid into a solid clogging up the hydraulic system . Have rebuild a couple brake systems .

Remove the air filter completely, that may remove the bike's will to die when throttling at low speeds. If that's the case then get a better airfilter.

Change the line and also check the caliper

2 strokes sounds the best

you are so Dope ..... God bless you kiddo.

Disappointed with the lack of “specials”

Who knew brake fluid could turn into peanut butter

I would like to suggest you to check the muffler if it clogged and retune/rejetting the carburetor

Hey good video where do you find all of these amazing deals as im looking to start a restoration project but i can nver find any good deals

Did you mix oil in the gas tank ? That bike has an oil pump that means your over oiling ....The front brake may needs seals in master cylinder

It’s probably running lean considering you put a pod filter vs the stock air box

You’d be badass to hang out with 😂

I know others have said car is isn't good and yes correct. I would definitely try and find a Yamaha oil just for the transmission side of the engine. Since it's a 2 stroke I'm sure the oil has to be mixed usually before you put the gas into the tank. It being Dutch a old bike I'd keep the mix around 25:1 and run a good Yamaha 2 cycle oil

Careful running with non standard air filter on a two stroke , fast way to a melting piston if not jetted correctly . But your doing great

Just find a newer working master cylinder. The brakes in the early 80s were just a suggestion when they were new anyway. Look at how small the disc is compared to the wheel diameter.

Wish you lived in antigua so i could buy it from you Edit:im into bikes and cars buuut i dont have money to buy one tbh

It's smoking a lot because it's running on petrol oil plus the autolube pump oil at the same time.

probably ignition gone, put new condensator and points to be sure and cancelling out. cheap fix, i do this standard on old bikes wich has not run for a long time

did u put oil in the gas? (i guess so cause the smoke from the exaust)

You should make cleaning and poloshing video, Thumbs up Great job

Possibly your clutch cable is sticking, which can make the clutch slip.

it sounds so fast men

Which cam are u using bro ?

Try adjust the float valves or get new piston ring that might fix ur bogging issue

About the compression.. That is the same motor as my DT50MX has and everyone with that motor has bad compression. So i guess Thats just how it is. But it depends on HOW bad the comp is ahaha

You should do a engine rebuild

That's a 2 stroke firstly you need to rev it more and faster before shifting, also shift faster, second that carburetor seems to need adjustment. The most important thing is don´t forget to use good quality 2 strokes oil with the correct percentage, 2% its enough if its a good 100% synthetic oil. That clutch need to be "unglued". Firstly use the kick-starter with the clutch pressed and the motorcycle off until the motor stops spinning while you use the kick-starter. After that put in 1st gear with the clutch pressed and the motorcycle off go backwards 1 meter. Put an oil that is designed work with oil submerged clutches. That carburetor need more gas because of the filter you putted in, with more air entering more gas is needed. That exhaust seems to be straight pipe put one with balloon shape that its much better for a 2 strokes, more power can be achieved. It's a nice bike, deserves a restoration.

what were those kids doing lol

Might be worth changing the crank seals

Damn 150 is cheap that's a rare bike

Buy a new clutch pack and some new springs to make it better

If you want to make more speed you need to go in the powerband. That is when you drive very high rpm