CORRECTION: piston "EX" smaller valve indent should be facing down toward exhaust. Which means the entire piston engrave 61mm and Taida Star symbol would be upside-down NOT like video shown. We did this for reading aesthetic of what piston size/brand installed. *sorry wish it did come aesthetically upright.

"How to do Everything wrong" Great video on that.

@NCYSTORE

3 жыл бұрын

Yeah that engrave is definitely wrong it's a dry installations well

This is going to last for about 3 or 4 miles before it blows up

@NCYSTORE

3 жыл бұрын

it lasted after the series built, it donor part was use on 180cc built right after no motor oil was even pour in.

Since I am Small repair mechanic , l have learned alot from your KZread videos channel. am capable of disassembling and assembling gy6 engines.Thanks rolling wrench garage technical experts for sharing there technical skills both false beginners and professional.

you made it way harder than it needed to be 🙄.

Exhaust is marked exhaust because the valves are different sizes and need to be mated correctly so the piston doesn't impact the valves.

Exhaust relief Belongs on the bottom intake relief on top. Piston is upside down bud. You could have just turned the motor with the stator bell. Watching you try to use the timing chain was like scratching a chalkboard.

@NCYSTORE

3 жыл бұрын

true, i know, it mention in video comment Taida engrave upside down.], thanks for the reminder.

I caught it real quick there for just a second. It looks like he has his piston rotated a 180° out It looks like the exhaust marking is on the top. It's Supposed to be Facing down.

Hey great tutorial video I'm installing a 180cc big bore kit on my gy6 150cc 157QMJ it fits that size motor but I'm having quite of a problem trying to slide the 2nd cylinder with the piston to come flush it is quite difficult I have the chain guide everything in place should I tap it or force it to fit it doesn't want to slide together or should I use some assembly line?

Why would you put the gasket on before the dowl pins?

Quick question, do you measure the gap of the spark plug if so what are the measurements for a 150cc 157 qmj engine?

This is why whenever I buy GY6 motor and a kid says that hes done something like this to I keep right on walking

@NCYSTORE

3 жыл бұрын

while the kid is riding?! lol jk

nice job, very easy to follow, minus the lube issue and always put EX to exhaust, regardless of aesthetics

@NCYSTORE

6 жыл бұрын

gary smith thank you you're absolutely correct on the oil lube if this wasn't a dry installation demo for sure never used engine without it being properly engine assemble lube during assembly. And, as far the facing of the piston regardless of the aesthetic engraved logo correctly facing it's not true it's sometimes hard to determine without measuring indent with a caliper to see which one has the wider indent width on piston face that should be on facing top for intake, and smaller width indent facing bottom for exhaust, correct. Don't know why the manufactures are not consistent with their piston face engrave "EX" or arrow down stamps, it could be totally opposite by caliper measurement. :/

Hey bro .. Can you give me some feedback on that same exact koso a12 camshaft .. How does it perform? What do u think about it? Would u recommend it?

No lube. Piston Upside down. Try using stator flywheel turning it as you try turning chain to get tdc. Less awkward than kicking it over.

@NCYSTORE

4 жыл бұрын

your smart

@russellzigler2180

Жыл бұрын

If he doesn't turn that piston a 180 degrees, the way it's supposed to be, the valves will probably hit the head.

Did you bore the crank case ?

my scooter sym gy6 engine number is XS1P57QMJ_3 it is ok ?

Can anyone tell me if I have to bore the case on my 157qmj I get mixed opinions and ideas on the subject also dose anyone know much about the 4 valve cylinder heads I'm thinking of putting on my scooter

i've done many gy6 motors nd never had da chain get missed set like dat

Because you did put in the top dead center before you disassemble the block thats why your having a hard putting back together, by pulling the chain back and forth is bad for the chain..

@NCYSTORE

5 жыл бұрын

Thank you you're right. Good note.

When you change to more cc the exahust generates more heat, right?

@NCYSTORE

6 жыл бұрын

Samuel Marchán Fernández that would be a correct assuming that more cc is bigger engine which produce more combustion which produce more heat through the exhaust.

Do you not put assembly lube or motor oil on the piston, rings ect when installing it?

@NCYSTORE

7 жыл бұрын

Yes, you're correct. This video was a dry fit installation of the cylinder ONLY, it's not intended for engine use ready. It's recommended before actual engine use assembly apply either engine assembly lube or use engine motor oil for your scooter directly onto the piston ring assembly, best. We recommend using engine assembly lube anti seize engine assembly lube with molly graphite vs motor oil for it will decapitate mostly once the motor oil gets to it overtime. However, leaves behind a substance anti seize to help prevent aluminum and metal bond. Either engine assembly lube or motor oil used to lube piston ring assembly will help premature friction wear of piston and cylinder housing unit.

@user-neo71665

7 жыл бұрын

This series so far is a list of what you don't want to do when putting an engine together. Everything from no lube to gouging bearing surfaces with metal tools. This guy might be great at selling ice to an Eskimo but if I walked in a shop and seen a mechanic like this I wouldn't even let them put air in my tires.

@joeleeman9886

7 жыл бұрын

Ive seen a lot of youtube "mechanics" in the last week or so of researching how to upgrade these scooters and this dude certainly isnt the worst ive seen however I have absolutely no experience in this field so take that with a grain. The no oil used sure sent out a red flag from reading up on this procedure but he does state that this is just a demonstration of how the parts go together and this engine wont be used like this. I didnt see the bearing part you mention and probably wouldnt have even registered it as anything out of the ordinary but now Ill make sure to avoid doing that myslef. I will be having a certified mechanic installing everything for me and doing the initial tune.

@NCYSTORE

7 жыл бұрын

Thank you for the feedback.

@wags9777

4 жыл бұрын

"Dry fit" that's an excuse for we didn't know. Every video in this series is fatally flawed. I'm guesing this is "pretty much" the first time for for all the info videos. That's a head not a "beautiful cylinder. " titanium valve springs have nothing to do with "being lighter." Where do i get a snail style spark plug? This is the definition of just throwing parts at a project. This guy has no idea how an engine works. Defiantly not a mechanic and barley a parts replacer. Ok I'm done... delete.

So when did you bore out that one mm or so from the engine you know

@alfredjenkins2291

4 жыл бұрын

Right it went in to easy. I just bought one and I been trying to get it to fit for two days. I knew I gotta bore it out just i lil cuz it doesn't fit☹️🧐

2 8mm bolts to remove mag cover would've saved alot more time to top dead center it

?Hi Mr..I have sym crox gy6 orginal engine 150cc model 2016 can I maket it 171cc Big Bore Kit

@NCYSTORE

7 жыл бұрын

Hi, 171cc Big Bore Kit does not require boring for most standard GY6 150cc crankcase which has 63mm opening. Just make sure to measure your crankcase cylinder opening where the cylinder sleeve will fit into diameter typically for not having to bore is 62.7mm should be fine. Next determine your stud spacing holding your cylinder typically is 54 mm. And, stud spacing 57mm are normally the bigger bore cases handling 180cc and above. Given that said if you check your gy6 engine on that specific engine model if it fits under those guidelines I'm sure you'll be able to do select the right 171cc upgrade big bore kit.

You put the piston on backwards.

and where did u find a uranium spark plug my friend ?

@NCYSTORE

5 жыл бұрын

In Captain Marvel Shield. Jk

This 61mm block kit fits on gy6125cc?

@NCYSTORE

3 жыл бұрын

yes see spec ncystore.com/ncy-cylinder-61mm-171cc-big-bore-kit-cast-piston-fit-54mm-gy6

That piston is upside down for sure. Tdc seems highly unlikely. No lube must be a noob. Never seen a timing chain so stressed @ 0 rpm in my life. I was hoping for more educational and less of comedy.

@NCYSTORE

6 жыл бұрын

Aaron Morris we did a dry installation for its easier see parts fitment and we did use these donor parts for another build video showing how use lube and where. See 1800cc build same concept continuation. kzread.info/dash/bejne/da2BqM-AedeYdps.html

@sakuraknight9274

6 жыл бұрын

NCY STORE Wow! I'd love to have an 1800 cc GY6 engine on my scooter. LMAO! Just kidding. How much horsepower would a 170cc big bore give my scooter? Would I need an oil cooler for it?

@NCYSTORE

6 жыл бұрын

sakuraknight9274 it's hard to convert horsepower small engine is measure in cc else factors in being if you upgrade the carburetor, your actual weight your body at the wheel would be different not necessarily you need an oil cooler or high-flow oil pump unless you going with 180cc but it doesn't hurt, keep your engine cooler longer.

the piston is upside down

On std crank ?

@NCYSTORE

5 жыл бұрын

Yes standard 57.8 crankshaft

ex向排气管，活塞反了。

This video was painful

@NCYSTORE

3 жыл бұрын

Yep my first youtube video! Not bad.

Is this how not to build an engine jeezs..are u sure u no what u are doing

your piston is upside down XD

@NCYSTORE

5 жыл бұрын

Thanks it's mentioned in the video description this for aesthetic purpose.

i realy dnt think u knw wat ur doing

lol ex for exhaust

There are so many things done wrong here! You should re-do this video and take this one down so others dont make mistakes. Please!

@PatonMacD

6 жыл бұрын

Cant help but cringe at certain points... Sorry!

@NCYSTORE

6 жыл бұрын

Hi, It's all been clarified in the video description as far piston facing EX down, sometimes you cannot tell without measuring piston indent width. And, as far as lubing an oil parts used this is a dry demo installations to better see the parts connect it's all mention on everyone of video description and the proper tools, parts, and chemicals used all list in the video description. Feel free to share your video how to do a proper installation :) Love to see it, please! 🤗

“Kickstarter “. People will take the words you used especially when you said it repeatedly “kickstand” instead of Kickstarter as gospel.

gumamit ka namn ng oil mali pa pagka lagay mo ng piston EX ay sa tambutso ang IN ay sa carburador intake mag aral ka pa mag mekaniko dude.

U are a bad mechanic...EX is not your intake..🤣🤣

@NCYSTORE

5 жыл бұрын

We mention it already on the video comment not always ex exhaust, you will have to measure with caliper just to be sure cuz they might sometimes can't depend on the markings are in this case we did it for aesthetic reasons to show the 61mm engrave upside right. :)

RTFM......

I don't believe this guy... They really rushed through the whole thing and call it a "dry demo". Well show us where the lube goes.. And I wonder how many people are still getting it upside down even after reading the description. Just cut out the shortcuts and do it right. Are you kidding us?

@NCYSTORE

6 жыл бұрын

Brittain Media hello it's easy to see the parts when it's a dry demo install if you are interested in seeing how things are lube it's the same as SSP-G 180cc kit installation. Where we go further into on the cylinder piston facing installations as well. :)

Please don't do anymore videos!!!!!!!!

This is more like how not to install!!! LOL

@NCYSTORE

3 жыл бұрын

kool, you more wise watching it. :)

"Dry fit" that's an excuse for we didn't know. Every video in this series is fatally flawed. I'm guesing this is "pretty much" the first time for for all the info videos. That's a head not a "beautiful cylinder. " titanium valve springs have nothing to do with "being lighter." Where do i get a snail style spark plug? This is the definition of just throwing parts at a project. This guy has no idea how an engine works. Defiantly not a mechanic and barley a parts replacer. Ok I'm done... delete.