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I just got a gen 1 50cc. 480 miles its been sitting for 10 years but i pilut the 1st 5 miles on it when i worked at the dealership this person bought it from. Gunna put a stock ruckus engine on it😂

u want to change ur gonna need to change your contra spring or clutch completely, if you cant get anything out of your rollers anymore u need to change how much the rear pulley timing, going with harder clutch springs can also help negate the lost in acceleration if u go too hard in contraspring

Do you have any that you’ve done custom work on for sale? Thanks.

How wide is the mounting bracket/ location for the an400 I’m looking at making and adapter bracket to put it in a icebear vision

Idk what should i buy, +35% gear ratio or +20%, like for 150ccm cylinder and different camshaft. I think with +35% I will ride slower due to power lack

Yes. You are absolutely right. I have a 2024 Honda Ruckus that came with 7g rollers weight. The top speed is 43mph. I put 6g rollers on it and have better acceleration with the same top speed. Then I put 5.5g rollers on it and believe it or not 5.5g is the sweet spot. I love it. Later on I decided to put the Polini Variator on it and tried every rollers weight and Sliders and I don’t like it so I stick with the stock variator with 5.5g. Thank you for the excellent videos and explanation.

Do you build these maddog scooters from bought ones? Numbers an tags are already good

Can u make a vid of that from rim how u put it on

Hey man when do when installing my new gears, for some reason my new shaft doesn’t want to go into the bearing on the motor side. The side with the gears and shaft installs nicely into the cover side of the gears. Could to tell me what’s going wrong and what am I missing. Shaft doesn’t want to install into motor side bearings. Does it need to be pressed in also?

Yes it can be a plug and play i did it but i get 65eazy without noz on my chines 150cc the plug and play right to yhe air intak i havent rode it yet cus i have get a new switch i have a lever i use to open a valve but im replacing it with a push button

I have a question my mad dog has two shocks in the back can I remove one?

What size is air filter

Would this fit on a flathead Briggs & Stratton 5 hp MTD model number 135202 type 025901. Thank you very much please help.

Will this fit on a 5 hp Briggs & Stratton model number 135202 flat head

I woukd biy from places like this . There are others where way cheaper that sell the sake exact stuff

I've got Airsal 81.3cc on my Romet 777 and custom CVT on Polini Variator, clutch spring 4.1mm and bell and also Naraku cnc alley, spring beared sleeve + Malossi yellow slide and I've got 90km/h and 128 downhill. Jasil crank shaft and 19mm cvk carburator. Now chanching to 24mm pwk, will let you know.

You should port the manifold

I need help .. follows ur video.. checked spark… adjusted valves… it starts with starter fluid but shuts off instantly help

That is the best setup the downfall is they don't sell a good CVT you have to make it

My 52 naraku and a 51naraku head they do not sell it no more it was $250 4 year ago but it turned 12: 5 on the tech with no base gasket no head gasket so I put Tower gears in it 17-41 he would do 57 at 9000 with a 21 flat slide

How hard would it be to make an adapter engine mount bracket to install a an400 into a gy6 150 also what suspension type would be easiest keep the gy6 rear suspension or adapt the Suzuki?

😂

Facts win. Thank you for checking why the junkyard special cvk is the one for the win. Subscribed! 🙂

I have a Gen 1 , I'd never want to go 70 mph on it. These bikes rattle too much and are made cheaply.

For the mad dog are they ac our dc

Hello man, that a stock GY6 150cc ? And just cam? Or carb upgrade Too? I have a 157QMJ stock engine and I wanna try 26mm carb pwk and 114mm Variator. Do u recommend me try those cam ?

Did you put your oem rocker assembly on that Naraku head? The rockers on those 69mm oem valves vs Naraku 64mm valves don't match.

How ya doing sir. What's a good in experience way to check crank bearings on qmb39

Just for reference, how much do you weigh? Those are really good results.

I bought a completely new WM 139QMB 80cc engine and also a Naraku v.2 90cc head plus cylinder kit. At first I was able to install only the cylinder, but I couldn't install the head because the rocker arm didn't fit, about 1 cm to the valves, it was impossible to adjust. When I installed the 90cc cylinder and 72mm head, everything was great. Then I installed the Naraku 90cc head and everything disappeared!!! The scooter barely starts (like a train), accelerates weakly and almost doesn't accelerate and wants to stop. I left the same carburetor, but even when I installed a larger 24mm carburetor, nothing much changed! What should I do???

We at Scooter Army love the vids. As these vids have cone in very handy. My self i have a lot of the parts your working with. 95cc Frankenstein stroker build - 38mm uni - using just inner layer 150cc 24mm carb 125cc manifold - 22.5mm i.d. vs 24mm i.d. Naraku wedge spacer Ssp-g 23/20 head - valve deshroud, milled, pocket port. Ssp-g titanium valve retainers Ncy cam Naraku 52.4mm piston and jug Taida 44mm forged stroker crankshaft Jst4shw rucks 90g lightened flywheel Ssp-g exhaust system Ncy ignition system Cvt- Ssp-g 89mm variator - longer ramps Dr. Pulley sliders 5.75g Stock boss length Ssp-g deive face Gates belt - 729 Dr. Oulley clutch bell Dr. Pulley 60 degree Hit clutch Stock contra spring Ncy contra ball bearing kit Ncy torque driver - using curved slots Ncy 18/46 secondary gears Long case with 12" wheel swap. Many people have had a issue with the cvt belt contacting the starter bindix and destroying the belt. Unfortunately no company has comeout with a better kick start mech so we can run a over range kit and bot kill the belt. Iv been looking into the honda Dio kick mechs as they look to be the same??? If we could build or find a better kick start mech. For the 139qmb then were in business. The stock kick start mechs on a 139qmb doesn't last long as the teety strip out fast. My personal goal for my build is 60mph - 7/7.5 hp if i can get anything over that is a added bonus! Keep up the good work dude!

How cool and funny with the ghetto wrench that RW responded to a video! My uni prefilter blew off at 50ish mph. Decided to try paper off TRS. I like it. Still have the black foam uni as spare. Also 2x the spade lug came off my ignition coil. Thought I had it the first time. Bumps and vibes got it I guess. Watched the mpg one too. Waiting on results on that. Got the gear up on my trike so hopefully it’s about 60 mpg and not like 40 lol.

is this fit to easyride 150n engine sir?

ZCRAIZED1 on RUclips told me to check out your exhaust videos. Sick pipe man. I want to do this too. Automatic subscribe.

There, that is another reason why you n your videos attracted me, when I was looking for help and advice. Cheezy Corn anyone? Thank you for that ya know.

WARNING!! Check your stock wheel studs regardless! (Length, fit) My rear studs were too deep (long) and actually were tight into the drum. I could barely believe it when I realized the damn wheel was not tight at all and wobbling from the factory... after 400 miles. ?!@%$!?wtf! Nightmare adverted?! I Had to grind the stud lengths down to tighten wheel. So glad we can get this out there. I appreciate your style, your builds and your advice. Been learning along for a couple years now since my '22 Chuck 50 has been trying to take me down. Ain't happening! Thanks mini.

Video was lost after 95mm variator

Hey? How do u get rid of the vibrations on the bike when riding? I can’t bear it anymore my ass goes numb and my hands from the handlebars too

Can you put octane booster in for shits and giggles, might gain 1mph 😂

Wow....I had a crank + no start issue on my Maddog 50 and I did the same exact thing you did. Put the wrong bolts in the fan, drove it straight into my stator. Thank the heavens you're on RUclips, I would've never guessed it was something as silly as that.

Looking to replace my front end on my gen 5. Any good non lowered forks.

That was both educational and entertaining!

I got the 11 pole. Don’t know when I’ll put it on but I also got the upgrade rectifier to match. Say it’s required.

Why dont you change your clutch springs for higher rpm?

Yeah with sliders you have to go about 1 more gram heavier than rollers 😊

Thank you

Go on a diet and lose 30 pounds and you'll do 55mph.

🤔 Maybe port & smooth out the ports in the head, port match the intake to the head.

Try a JATO rocket.

It is at the Mad Max level.. Could Space Ghost make it to 55 mph ??????