250cc Dirt Bike Restoration/Rebuild - Zongshen 250

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250cc Dirt Bike Restoration/Rebuild - Zongshen 250

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I like the simplicity of these Chinese OHV Motorbike Engines..

it's basically a Honda CG 125 engine with a bigger displacement
with extra bits and bobs for the electric starter

jasperdomacena
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Isso que é uma jegua Boa de se locomover

supernatureza
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I have a Xmoto 31 with 250cc and my engine looks similar to yours. Which cylinder kit did you use and what are the clearances for the valves?

TUBEYOUTHETUBE
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I love your video and i am inspired to make my own thanks im about to buy a apollo and get crazy hopefully i dont get overwhelmed with the mechanics but this looks fun

kevinjames
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Please can you tell me what gaps you made for the valves?

dominy_kas
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A very helpful leson.... But i need one of the spares of zongshen how are they available

justinekelvin
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The pad over the bar clamp is for FAT BARS, which you do not have. You need to get a crossbar pad, soon. It's geared for highway speeds. Find a rear sprocket that is about the size of the brake rotor. 46T to 48T. Front Sprocket should be a 13/14T. Then it's a trail bike. Ya wanna be able to plunk your way over rocks and roots at a crawl speed if nessasary. It's not a street bike.

megadawg
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Dude has really good hand work and the filming is very good. That engine stand is way cool! He's done this before if he has that. This is quick, but accurate. Well done. Does anyone know how to make these shift better? My 2023 5 month old ZS 223 in my X-PRO TITAN is notchy, cranky, ... difficult. I'm using the recommended Rotella oil.

megadawg
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Looks like I've got the same question as many others on here. Could you please put some text or voice over on your video to explain what settings and specifications you actually set the engine to when rebuilding it. You showed me a very cool clip of you setting the exhaust valves, but that gave me absolutely no information on how to actually do it. The best reference I can find online for anyone else that reads this comment is to set your exhaust. 003 and your intake to .004 I've also found other videos on YouTube that recommend setting them both to .004

Thebowhuntingbertaboy
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Can you show a tutorial on how you wired the motor up

picklejuice
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Hey. I have one of these and it's smoking from between the head and cylinder. Will that require a full rebuild? Also, I can't find a rear replacement hub to save my life. It's sheared and needs to be replaced.

ag
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Hey Bro! I also have this dirt bike and it's amazing

Kovy
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I'm rebuilding my orion agb30 and still don't have spark. Waiting on the AC cdi and 8 post 5 wire stator. Went over most of the rest of the bike already. Still need to do a valve gap, forks. Mine has this stupid kill switch on the brake lever. Only 100$ in on replacement parts. Hope I get it running good.

Taematoe
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where did you buy the plastics from? thanks!

itemaru
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Bro! Amazing do you have the book of maintenance?? Appreciate.

sm.p.
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What are all the parts and the bolt tensions?

jondoough
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Hello! from where did you buy the motorcycle parts?

andreicalnaci
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Nice job thease bikes are hore to work on congratulations

Happygrowercbris
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CG model more durable and less maintenance. very nice video

ilhamyogihidayat
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Can i swap the engine for a cr 250cc or a kxf250??

Badjoras-rfmi