DIY Gy6 Scooter 50cc to 100cc Kit

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In this tutorial I show you how to install the 100cc big bore kit, easy step by step instructions. Fit's Gy6 139qmb & Ip39qmb. DIY Gy6 Scooter 50cc to 100cc Kit
LUBE YOUR PARTS! I LUBED MINE BUT LOST THE CLIPS SHOWING THE PROCESS. lube your piston rings, cylinder walls, wrist pins ECT.
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Due to factors beyond the control of NTHEFASTLANE, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Nthefastlane assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. NTHEFASTLANE recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of NTHEFASTLANE , no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not NTHEFASTLANE..
#50ccTo100cc #ScooterBBK #50ccBBK

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25 июл 2013

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Комментарии : 669

@Nthefastlane 8 лет назад

🛒 Purchase The Parts In The Video Here: www.nthefastlane.com/gy6-scooter-50cc-to-100cc-kit-store 🛒 Visit Nthefastlane's Amazon Store: amzn.to/3pP4UCy

@RoGuExPaNcAkE 8 лет назад

+Nthefastlane will it be noticable to the authorities if i do this????

@ericcarroll5943 6 лет назад

Nthefastlane i need help cold it be the fuel pump wean I gave it gas it die on me

@Lastyoutubegosh 6 лет назад

Nthefastlane would it be a little better if i ran straight pipe moneys kinda tight on bigger exhaust or normal exhaust is better please hmu

@kristafoster7190 4 года назад

You should do a video of port and polishing the exhaust and intake port to a bigger intake and exhaust size since these engines are badly restricted of exhaust and air flow to promote better combustion in the combustion chamber while running and the moped i have like this runs much much better with a port and polished head with a unrestricted straight piped exhaust and putting bigger valve seats in the hemi type head that's pretty funny these engines have a very small hemi engine in these scooters and I think it's funny to say YEAH ITS GOT A HEMI

@just4kicks950 4 года назад

I believe when you bought the full kit , they include a H.O oil pump to deliver more oil to the bigger top end or so the say & u have a big enough pump to run a NYC oil cooler. So they say couldn't tell the stock oil pump from the extra in the kit . I'm not 💯 for sure nice clean big bore complete, I have to actually pull my motor for a big bore frame is smack in the way for 150 to a 180cc & 30mm carb get ya moving Fwd great vid !

@greko4849 3 года назад

hi im going into a engineering school. Im not a professional yet but i think you should lubricate the piston and its componets to avoid any internal damage at the first startups!

@didrivekopel2511 Год назад

What you a fu... Russian

@woodyamsterdam Год назад

Exactly my thoughts.

@MrSagerific95 Год назад

Not to burst your bubble, engineers are not mechanics. In fact mechanics do not usually like engineers because you don’t make things functional.

@Andy-df6gm 11 месяцев назад

@@MrSagerific95that may be, but engine assembly lube exists for a reason

@MrSagerific95 11 месяцев назад

@@Andy-df6gm as a professional mechanic and engine builder I agree 100%

@ronr1187 8 лет назад

Great video, very informative and well shot, much better than many. I've watched over a dozen videos with different motors, different kits all to get an idea of what problems others run across. Generally, they are all similar. Anyway; None but one ever mentioned using assembly lube for re-installation. As cheap as that stuff is, I believe it is a must do step. Or at least use regular motor oil, (preferably heavy weight/thicker oil). I use a restaurant ketchup squeeze bottle and use straight 50W oil when I can't find my assembly lube. It sticks better. You should pre-oil the wrist pins, the rings and cylinder, the lifters, (both the pivot points & all contact points), the chain tensioner as well as chain and sprocket. Any metal to metal wear points. Then before you replace the plug, either hand turn or use a drill or the starter to turn over the motor several times to start the oil pumping through the engine before a hard start. Then no matter how well oiled, let it idle for a minute or two to help seat everything then a short test drive, (short, no over revving or speed test). Then change the oil. Any metal shavings need to be removed right away. One video did mention to get a magnetic oil drain plug, good idea with or without a rebuild. That is just my two cents worth; "An ounce of prevention is worth a pound or cure". This is just a suggestion for my knowledge. I would love either a video or at least information on what the best setup would be for different size rebuilds, like, this 100cc upgrade, the best clutch setup, lighter or heavier weights on the flywheel, best carb jet size or better yet carburetor to replace, what CDI to use, etc. etc. Thanks for the video, you did a great job.

@benl4707 2 года назад

49ccscoot does alot of the test this against that etc

@ricochet08 10 лет назад

i'm a computer guy, and i learned quite a lot from this video! i'm far from a mechanic, but i'll have more confidence tearing apart a motor now. now to find a scooter project :D Thanks for the video!

@WolfandCatUnite 2 года назад

Makes want to try to work on one

@IllInformedHuman 8 лет назад

Thank you for supplying a link for the parts. I can't wait to make this change to my scooter :)

@dondbazsika 10 лет назад

I like your video! Informative and educating! I was impressed that you did your homework when describing the difference between the P39 and 139 models! Kudos sir! Kudos!

@julzchar1055 10 лет назад

The video was long but very informative, tink u did a great job too, I have a 125cc but im gonna get an upgrade kit of maybe 170 cc and also rejet my 26mm car, , hopefully I'll be on race track soon

@Nthefastlane 11 лет назад

Anytime, glad to be of help!

@badmonkey2222 4 года назад

Did the same on my 2006 peace motorsports 50, previously bored it to 80cc and just recently went to 100cc and trust me on a50 with the small tires 65mph is almost to fast unless it's a nice smooth surface, I have to also be careful not to get caught speeding because in North Carolina anything over 50 cc and goes faster than 35 requires a motorcycle endorsement which I don't have, but anyways it really helped with the performance I also put a performance muffler and coil as well, down hill probably 70ish but i havnt had the balls to try it 😆. Tags and registration 24$ and 12$ a month insurance with Geico.

@aaron71 6 лет назад

Awesome video man, really detailed. I was worried about tearing into this thing but I think I've got it down now!

@Nthefastlane 6 лет назад

aaron71 You got this 👊

@Nthefastlane 10 лет назад

Thanks for the tip james.

@blackgumbo5536 6 лет назад

you gave yourself extra work taking off the throttle cable

@laylasuzanne29 7 лет назад

Great job doing the change over

@moslimislam5714 8 лет назад

No gasket for the chain tensioner? You are a badass

@dirksnijder6597 Месяц назад

Was just thinking this

@Nthefastlane 11 лет назад

Hey thanks for the extra input, Appreciated..and thanks!

@phatmanxxxl 8 лет назад

Great video, hopefully its as easy as you made it look.

@delahayenator 2 года назад

Some tips: When attaching the piston, already put one of the clips in the piston before you slide it on the crank. Easier ;) And very important, lube the piston and cylinder with engine oil. Don’t slide it on just like that. Same when montaging the headbolts, lube them and make shure the threads are clean before you torque them.

@Nthefastlane 2 года назад

The piston rings and piston were lubricated prior to assembly. I believe what happened was when I was recording I pressed record for the second time and accidentally stopped recording. Lost the footage

@delahayenator 2 года назад

@@Nthefastlane ah ok :) what weight rollers do you use in youre scooter? I got the 50mm kit as well with a 24mm carb and the head with larger ports and the performance camshaft. The scooter pulls well till about 25mph, flattens and starts pulling again at 30, maxes out at about 42mph. I got 6,5gr rollers and a performance exhaust with 27mm downpipe and a fake yoshimura muffler.

@steveblottenberger1097 Год назад

Good job kid keep up the good work Steve from Annapolis Maryland

@jinglejangle1420 11 лет назад

going to install same kit this is going to b a big help thanks

@shogunvsamurai3523 10 лет назад

And... converted. Thought I was going to have to drop the engine to make the swap, but everything you have removed is no different than what I have removed from my own scooter for other related maintenance. Thank you for clearing things up.

@Nthefastlane 10 лет назад

Bryan Butler Anytime Bryan, glad I could help!

@69Polie69 4 года назад

@@Nthefastlane thoughts on polishing piston face?

@adammeyer195 9 лет назад

This video is great. Thx dude

@Penndennis 7 лет назад

That was a great job Man!

@woutvangessel9412 9 лет назад

Thx, for the great tut, learned alot !!

@pancakesallday7047 2 года назад

Dude this is Gold!!! Thanks bro!!!

@dolotoonz4994 10 лет назад

Bro, thanks for this video. I recently got a rundown 2003 qingqi moped, and I'm having a hard time with it. I have no idea what I'm doing but this video is making the project less intimidating . When u get the chance can u do a reverse video putting the parts back on? Thanks I appreciate this video very much.

@aaroncaines2603 7 лет назад

great installation haha he didn't even lubricant the cylinder 😂👌

@Myticalweedwizard 2 года назад

Dam what carb is good to use

@1969camaro 6 месяцев назад

Cool video enjoyed it💪🏻👍👌

@polksolid9592 7 лет назад

I really appreciate this dude.

@SrColon309 11 месяцев назад

excellent work 👏

@nintendofanboy45 9 лет назад

Thanks for the video! God bless :)

@radconserv68 5 лет назад

Thanks for doing this vid!!!

@sirs2000 9 лет назад

Great video, Im looking at putting in a 80cc kit, so far I have the piston, rings, block and cam. Do I need to replace the carb or ignition system at all?? great videos mate very informative.

@windcloud9736 10 лет назад

Really informative Gj

@Nthefastlane 10 лет назад

Thanks Don!

@darkom294 8 лет назад

svaka cast ljudino

@crumplezone1 11 лет назад

Great howto vid dude ! just subbed :)

@lpacheco06226 4 года назад

Thank you for the video. I have the same scooter. I will be doing the same thing in really soon.

@WolfandCatUnite 2 года назад

nicely done video

@psfanto57 10 лет назад

Good teaching!!! Thx

@Tom5555 Год назад

Nice one!! Might wanna let it idle for an hour for breaking in purposes before reving hard

@Nthefastlane 11 лет назад

Thanks!

@salut744 9 лет назад

Thanks a lot man !! very usefull ! Watched From France Toulouse and gonna do the same thing on a 50cc peugeot vclic !

@steveblottenberger1097 Год назад

Hey my friend I've been building engines for 30 years they're called dowel pens repeat dial pens they're not shims shims is like a flat piece of metal that you put between two other pieces of metal that is a dowel pen and you can look it up Google it to be correct just trying to correct you you doing a good job keep up the good work still got a lot to learn

@Nthefastlane Год назад

Actually they're "Dowel Pins" not "Dowel Pens". Maybe autocorrect? But you are correct. I'm not sure why I said shims, I knew what they were. Sometimes thinking about creating the video in the moment and paying attention to the work you're doing gets things mixed up sometimes.

@pshivjee Год назад

Love ❤️ you Guys great 👍.

@Nthefastlane 10 лет назад

Hey Brian D,First make sure you bolted the 2 Black ground wires to the valve cover..without those you will not have enough ground and the lights will be dim.

@Nthefastlane 10 лет назад

Hey Elton,First make sure you bolted the 2 Black ground wires to the valve cover..without those you will not have enough ground and the lights will be dim.

@imrush1984 9 лет назад

Hello, great video, and great explanation. Congrats! I have a baotian bt49qt with 139qma engine ( I assume it is the same engine as 139qmb) and it has lack of power and much blow-by at the cover vent. Where i live they don't sell bbk's, however they sell cylinder, piston and ring set for 80ccm, so if I go with that set would I have to change cam head and/or anything else like carburetor? Thanks

@kickstart4639 10 лет назад

right good video worked for me

@Valenciaofwvlogs 4 года назад

incredible and so nice motobike love lots your video .

@colinhicks5841 7 лет назад

Quality video

@shakeelshano 4 года назад

Good piston ring installed

@rebeccawhitted117 8 лет назад

wow THANK YOU !! WOW !!

@robertmitchell2694 7 лет назад

thank you brother

@pucciopuccio1150 4 года назад

Good work

@pshivjee Год назад

Good Stuff gy6

@joeecarbonee6849 2 года назад

Im getting that kit. But aint no way i wanna tackle that. I got a buddy for that. But i did put a clutch and variator yesterday. What a difference it made.

@barryaiello3127 10 лет назад

Decent vid, I would recommend putting a film of heavy gear oil on the cylinder walls so the rings won't be dry rubbing until the oil pump forces oil up in there, just my 2 cents..

@kennithbrown4036 6 лет назад

Barry Aiello I guess he doesn’t moisten his girl either he just goes in dry

@The77pgl 10 лет назад

Great vid, btw what size jet did you end up using, did you have to change anything else in carb dept.? Thanks again!

@jeffmee763 2 года назад

Whenever I've done a head job I always use some oil on the cams etc helps with the first start no cooling cover not a good thing.

@UnrealBYBScooterBros Год назад

The little bolts are 8mm yes a 5/16th will work if there not real tight but can srip them out just trying to help I enjoyed the video thanks

@alacran98 11 лет назад

nice job

@samyelalem 10 лет назад

Awsome dude. Very helpful. Want to ask u. I want to use a performance air filter but not sur what to do with the crankcase vent hose. Where should it go since no nipple for it in the performance air filter?

@francisgamelinsevilleno3115 2 года назад

you make me wanna upgrade my scooter!!! haha

@cheddar2848 4 года назад

Awesome video and thank you for sharing!!!

@ButtMasterOO 10 лет назад

man...that's a bunch of work. thanks for the vid! maybe i'll get brave enough some day and have enough time to do this.

@alynicholls3230 7 лет назад

quick tip on those carbs use a small dremell cutting wheel to put a groove in the screw then unscrew with a flat screwdriver. doing it like this you can use the screws to reassemble.

@radconserv68 5 лет назад

Good tip.

@daand12 9 лет назад

You forgot to lube the piston and rings + cylinder! And i installed a 80cc cylinder today and used some oil in the cylinder and piston. No smoke at first start up ( without exhaust ofcourse )

@nctrooper10722001 9 лет назад

daand12 I dont know or any cops that carry micrometers.. just sayin

@jediknight1294 4 года назад

@@nctrooper10722001 iv had a bike impounded and checked before dude. Its not worth it.

@delahayenator 2 года назад

@@nctrooper10722001 no but they don’t care anyway you’ve lost some compression and power because of excessive wear ;)

@Nthefastlane 10 лет назад

Everyone if you want to see the results go to this link, paste it at the end of dot.com on youtube... DON'T FORGET TO SUBSCRIBE!! /watch?v=v6knbV8F7Yk&feature=share&list=UUSx7PafcTwVa_EVb0zGZPQg

@blackgumbo5536 6 лет назад

Lucas assembly lube helps alot also

@kentbarger6974 4 года назад

I had a couple of suggestions for doing this demo I would have taken the motor in gear trade out of the scooter and put it on a patch so that people will be able to see things more easily there's parts of your video to where you cannot see what's going on this would really help as a video for teaching people how to assemble this Bore Kit also I would suggest taking off the side cover and turning the crankshaft manually by using a socket and Ratchet this way if the person makes a mistake when installing the cam gear and chain where the timing is not right this way you will not Bend a valve just a precautionary measure because a lot of people have never put in a Big Bore Kit the cam sprocket is so tiny it would be really easy to be off a couple of notches and not even know it also is very important to show people how to make sure there crank is at top dead center and both valves are closed I hope the information I have talked about will help people and will help the man who made this video I think you did a really good job but these are some ideas that may help him make other videos in the future

@west2284 5 лет назад

for the 90cc on a kymco super 8 I take the 50 head, that combination works fine also the 50cc camshaft, up there you have to go fit, experience say that, with this setup you get with tight running almost the 100km / h 80cc 86 nozzle 50cc head / 50cc camshaft, drive in at 50km / h then full throttle and do it in such a way to speed up and take off, giving a little to his thunder, so the cylinder is not lazy either.

@mrsaizo0000 Год назад

Last time I did work on the engine on a "baotian" 4-stroke scooter, I actually removed the entire rear from the frame - was so much easier to work on it.

@strokhelp 5 лет назад

Nice

@brianclancey8139 2 года назад

Great video man I feel confident to DIY is the kymco 2017 super 8 x50 the same motor??

@whoiam5371 2 года назад

Just donished upgrading my scooter thanks for the vid it was pricless; thnks a million peace ✌ the christvtske 2

@mili76mili 9 лет назад

nice one

@aceofspayds1 10 лет назад

thanks

@etiennecouture1552 9 лет назад

When I was young, I was good with LEGO.

@sebikelife1262 3 года назад

And

@BigBoyMemer 3 года назад

40 people understood this and i am not one

@fazebusta47 2 года назад

@@BigBoyMemer It means when he was younger he was good with lego and at the same age, this guy is assembling an engine in a scooter; which is a more complex task.

@fazebusta47 2 года назад

@@sebikelife1262 The joke is that when he was younger he was good with lego and at the same age, this guy is assembling an engine in a scooter; which is a more complex task.

@rjuarez4913 4 года назад

Another thing you want to do is use assembly lube on your wrist pin, inside the cylinder walls , and on your cam lobes and other various metal to metal contact points so installation is easier and you need some lubrication before the oil gets there in initial start up. Very important.

@Nthefastlane 4 года назад

I mentioned this in the description under the video. RU-vid used to have annotations, but they removed them so all of my notes in the video got removed.

@Bobby-kw4qp 9 месяцев назад

White lithium grease will work fine.

@Bobby-kw4qp 9 месяцев назад

Use a rubber mallet.

@johnnyturbo8460 4 года назад

The oil pump is a higher capacity pump, it flows more oil.. install it 100%. Bigger piston, bigger bore it will need more oil. Don't forget to lubricate the rocker arms,cam etc.. dont put them in dry

@claytonevans1498 8 лет назад

Great video. Question though, did one of the new rocker arms not slide into place easily? For me, one fit perfectly, the other will not fit in between the two walls.

@mike-Occslong Год назад

Great vid man wouod tht kit work on most 50cc scooters? Also is it necessary to change jets n rollers??

@Nthefastlane 10 лет назад

Yes, the T is just a indicator for the line in front of it which is the real TDC line.

@rjuarez4913 4 года назад

Instead of squeezing the clip and possibly bending or distorting the clip, insert the clip the same way you did , but use a scribe into the same notch , but you can insert the scribe into the notch but outside the clip then pry the clip inward with the scribe. This way you are only affecting one portion of the clip.

@piperpilot26 10 лет назад

Excellent DIY!! I have a question for you. How did you go about cooling this engine, as the stock cooling shroud no longer fits.

@SC8terRiderMotoVlogger 7 лет назад

Very nice DIY video, What your scooter brand, I have 2009 KYMCO Super 8 125cc all stock, what basic upgrade do i need beside upgrading to high displacement? Thanks!

@blessedbackpacker222 9 месяцев назад

12:14 instead of using screwdriver to pry it out. a gentle tap with mallot helps. 23:40 apply a drop of oil before installing piston pin clips and piston ring and you won't need pliers to shove the clip in. 29:00 shims/guides are known by one more name. dowel pin.

@SlimboShagginS13 4 года назад

There are so many comments, questions and points. But this is like puttin lipstick on a dog. A peace sport firstly. And an 80cc on that model would do fine. It's very light. But mostly why are you making a how to on something you are not well versed in..... But it all boils down to, thanks for keeping local scooter mechanics busy! You help alot. And 5/16? There is no standard its all metric. All u need os 8 10 12 14 17. Sometimes a 13mm thats it

@ButtMasterOO 10 лет назад

clearly genius!!!!!!!!!!!!!!!!!!!! i want to do this. GIVE ME UR POWERS!??? HAHA

@sheriftaha4919 10 лет назад

Thanks man for the awesome video ! can i do something for my honda elite 125cc scooter ?

@hondaelite6506 10 лет назад

I need help

@caraudioowner 11 лет назад

Awsome!! how much faster did it go after all the mods?

@dkcbr600 7 лет назад

@Nthefastlane I see you're using the a 150cc header pipe with the bbk.. Did you drill out the holes on the header pipe or find an adapter to make the pipe fit properly?

@reazmohammed9686 9 лет назад

you did not use any assembly lube or oil

@Nthefastlane 10 лет назад

Anytime Don

@grazz7865 Год назад

Good advice about the rocker arms, however, just for trial and error, I tried to put the rocker arms the wrong way and found it’s not possible. The casing will not allow the cam shaft to fit. I did find it WAY easier to oil the cylinder before installing the piston.

@bobrenfro3080 9 лет назад

Will you ever do anything with a Whizzer motorbike ? My only changes I did on mine was the high compression head, echo pipe and twist grip controls. Before it was 2, 5 HP and 35 MPH. after 3.0 HP and 40 MPH. I was 16 then, now 80.