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Really appreciate this video man! Its been 20 years since i had my z50 working. It's a 79 and i had no idea about the different rod lengths. Paid 2 different people to get this thing back on the road, one kept it for 3 years and did ABSOLUTELY NOTHING! Took it to a guy that lives down the street. He was working on another one when i dropped it off. The asshole needed a carb for the other one and ended up buying a cheap POS off amazon that woukdnt work on the other one, so he threw MINE ON IT and gave it to the people as "REPAIRED" and stuck the new piece of shit on mine, which it still didnt fit, so he took the damn upper engine mounting bolt out to tip the engine down a little so it'd fit. I took it back immediately. I had given him a brand new enerpac hydraulic pump($600 dollar value). He said he put a new jug and piston kit in it, but couldn't get it running. I tore into it myself finally, found that not only was there no new jug or piston but that he'd also stuck the thing back together 180° off on the timing! Im getting older and have a disease thats measing up my spine and id REALLY like to ride this thing again before i cant anymore. This thing used to ride in the back of my cj5 because i had a broken gas guage and ADHD which is a TERRIBLE combination! It saved my bacon so many times and because i always had it with me, i used it so much more because i had it when the mood took me. If i cant get this thing running soon, im going to sell it and buy a cheap chinese copy. I know how disgusting that sounds. I woukd have beat my ass for saying that 20... shit, even 10 years ago, but that was a ton of health and a long time ago. I dont have the income anymore to afford a real one, so if i cant fix the one i have... 🤷 Sorry for the huge comment! Wasnt my intention. Its an old video and apparently i needed to vent a bit. I dont know if youre still doing this 3 years later or not, but if you are, i may indeed need some help with this. I dont have a ton of money, but i have a parts bike and a bunch of other misc. parts if i needed to bother you for help. Ive tried the "someone local" thing and t no avail! Kinda running out of time and options.

would it cost the same to buy one or to restore one from just frame thanks.

Hi Josh, Do you have a like for replacement seals for a CT 70 ? Please let me know. Thank you.

Excellent..!

i just finished rebuilding a 72 Z50 and im getting about 50-60PSI with a brand new cylinder and top end. will have to preform a leak down to see where the leak is coming from

you have Instagram or Facebook? I will send you one video for my honda c70 for problem

Thank you.

I seen one these put a Harley-Davidson which internal throttle assembly would i need to do this

Will this fit a 1 inch handlebar if it will can u send all the part numbers for what u bought would really appreciate it if u still have this channel

The top end kit works for all 70cc they are made for short rod engines like this the Honda 90cc big bore kit also works because the stroke is the same just the bore.

Are you readjusting the points gap or turning a plate through that slot what.

Awesome 2 part video! Really helped me a lot. Thank yoy

Anyone know why mine isn’t shifting into first? I just split the case to change gaskets, but never took out the transmission gears

Thank-you, for posting this

About to start rebuilding one myself. Did you just paint grey over all the chrome? Is that more of a budget thing instead of getting everything rechromed?

I bought one of these off of you from Ebay about 2 weeks ago for my SL70 . I got to watch your TH-cam to insalling the coils . I have not improved the weak spark at all . I just going back watching this vid to make sure I did the install correctly and I did . I then doing some test on the coils after soldering to condensor . Here what I came up on 200 m Ohm's with points closed : Gr wire 3.0 , Bk wire 4.2 , Br wire 2.9 , Gr/R wire 2.4 . Points open : Gr wire 2.9 , Bk wire 3.2 , Br wire 2.0 , Gn/R 1.8 . These readings was at connector . The meter was grounded to flywheel and all three wires solder to Condenser . Are these reading with in specs. . I do realize there maybe small amount of discrepancies between from one meter to another . Thanks Jeff

Clutch cable at 1:53 wasn’t adjust correctly. Had a jam nut loose.

Thank you. I had no idea that JASO-MA was pertaining to wet clutch suitibility.

OLÁ Vintage 09/08/24 Uma dica: Os setores de aço dos anéis de óleo podem ser montados de 3 formas (em relação à lateral da canaleta de pistão). UMA correta, uma incorreta e que aumenta a lubrificação dos demais anéis e outra também incorreta que diminui a lubrificação dos demais anéis. Eu pergunto, qual das três formas usastes? Abraços... Roberto Udo Krapf

Are you stating that both battery terminals are negative? Red is positive, the blue clip would go onto the negative post, correct?

The person before who positioned the shift arm incorrectly also left out the washer between the clutch basket nut and the tabbed lock washer. That washer is marked "out side" that that writing faces the nut side

I have a '73 Honda XR-75. Recently purchased. What engine oil do you recommend. I live in florida....just run the engine once a month. Thanks............Sal

A variant of this called the CD70 is still in production to this day.

You don't have to grind the Z50 mounts because the bolts screw into the metal thread and the mounting points on the coil itself are metal. So simply bolting it in place grounds it perfectly.

What color of silver paint do you use on the engine. I have a 73 and 74 atc 70.

Josh, Great video series !! I'm in the process of adding that same Lifen motor to my K0. I was stumped by what to do with the 2 yellow wires coming from the motor. (Video #4) You have straightened that out for me now, and I'm so relieved, as it was driving me nuts. Just have to order that Trail Buddy extra harness that you showed, and hopefully I'm good to go. I am now subscribed, and hope you have many more videos to show in the future, there's always something that needs attention on these bikes. Regard's Mark

Hi. Just received an order from your ebay site. Thank you🙂👍 Was noticing on the bike you are working on in this vid that the black rubber gasket is in between engine and intake manifold. On my ct70 its in between the manifold and carb. Which is the correct position? Thanks. Brian in Colorado

When you put clutch arm in that position should that b neutral ??

Why does lower right head get nut instead of acorn .???

Just got the kit… installed in less than 10 minutes. Works better than expected. Good quality. Way better than the Chinese knockoffs. BUY USA!

Interesting video. Thank you so much. I've learned so much from watching your videos. Keep them coming.

From 1:30 helped me, good explanation 👍

Does not explain what the philip screw on brake hub is. Bs

Thanks Josh!

Genuine products made in China are of poor quality. If possible, purchase products made in Japan.

Is it mandatory to preload the spring 2 turns? Or will 1 turn be enough? My new spring had a wire band holding in in prewind. Can I just leave the wire on , set the spring in place and the cut the wire that holds it in prewind? By the way, nice video. Thanks

were the hubs painted from the factory or just raw aluminum?

I really like those cl70s. I'm planning on building one myself. I'm currently working on it's sporty brother a ss50z k3.

Love the Color I am going to build a Candy Orange

Thanx Alot . .

Just tried to look you up and shows nothing

Where can i find the logo stencil? Thanks

Not completely fair, under pressure the oil moves much quicker than having an open system test.

thank you very much nice vid

That's the first time anyone ever confirmed to me that these actually have oil pumps I didn't think these small engines had them. I thought they were like lawnmowers they just splashed it around thanks for a great video 😊

Update please if it's still holding up

What is that plate called that is held on by the long bolt and it has the number 22 on the inside I broke part of it on my engine and I can’t find the name of it

Thanks for sharing and teaching, much appreciated

Super helpful, I used this trick today to get the bearings out. The extension ended up getting stuck in the bearing after I knocked it out of the hub. I used a blowtorch to heat it up and knock it up.

Very clear instruction but the fact that a man is wearing fingernail polish is weird. Hope that the Lord grants you repentance.