Motorized Bikes 101: Engine Top-end Assembly 49cc 66cc 80cc 100cc

[@gotchurebeacons-gaming9023]

Great video! Here’s a few things to add. The G clip is designed to be installed one way. The tine you grabbed with the needle-nose pliers sits proud of the coil, be sure that side is facing outward. Also, it’s best to have that tine pointing downward for the clip’s resting position. Also, before installing the jug, I’ll lay a sheet of wet fine grit (1500) on a flat surface and lightly “circle sand” the mating surface for the top of the jug, this will help polish away any micro-imperfections. Ride safe!

[@patrickharding4831]

Good video mate, done well, here's a tip for the gudgeon pin clips, put one of them in the piston before putting the pin in, then you only have to do the other clip whilst in the awkward position with the piston installed, and don't tighten the main studs any tighter than finger tight because when the head nuts are torqued it applies too much pressure at the bottom of the drilling where the studs bottom out and make contact, it can cause the engine case to crack during thermal cycles. Keep it up, really dig your content. Cheers

[@rgbigdog]

Note to self, put in one wrist pin clip into piston before attaching it onto the connecting rod. This will help greatly when assembling the piston to the connecting rod.

[@worscohli]

Why only one?

[@rgbigdog]

@@worscohli if one isn't obvious I don't know what to tell you.

[@davidonzahwah3777]

Man this bike game is goin crazy out here!

[@edgufler1122]

Happy New Year Alex. Happy to see you back with a great video.

[@daddiegreensDad190]

There's two washers that are in the box for bearings and pin what about those

[@xv7501225]

Thank you, for telling me the wrist pin clips are in a red bag. I thought it was trash. Had to dig through my trash. All is good now!

[@rogerboswell5483]

I have to fix my engine now i know how.. thanks 😊

[@shaggysidbacon6144]

Love this dude's energy and knowledgeable input I'm subscribed to bikkerberry.. but I'm going to subscribe to this channel ..thanks for this vid keep up the great work

[@MotoredLife]

Thanks for watching buddy!

[@lorilouden6799]

@@MotoredLife hey man , I appreciate the video , I’m a new builder , on my second build , first one was a engine from bike berry , this one I’m doing now is a pk 80 wildcat , anyway question is what can I do to get the head studs seated in further , I put blue Loctite on them because I heard that was good to do , and I started turning them in and they went about halfway down before the wouldn’t go down any further , I even tried vice grips to get them seated in further , to no avail. I can’t properly torque my head because of this and it leaves a little gap between gasket and cylinder. How can I get these studs seated in further? I appreciate any feedback

[@bryceevans8340]

Bruhhh this was a fucking amazing video good detail and quality very informative too 👏

[@Westhelockpicker]

If the engine is off the bike you can put the piston in the cylinder and then put it down the studs and put the bar thru the rod and piston. I've seen people do it both ways

[@keeganhache6667]

Please upload more your videos And la hovers are the best for motorized bikes.

[@MotoredLife]

Will do! Whole bike assembly is next

[@shaggysidbacon6144]

Just finished building mine...it's on a Kent seachange

[@bryduhbikeguy]

Have you seen an 80cc kit with a 1 piece cylinder/head,that bolts on at the Base,and not with studs like what you just built?I bought 1 online.I'd like to know what you think of them,or tips from everyone about it.Thanks.

[@tonytaylor5087]

Good to see you man!

[@JorgeRodriguez-ei2gi]

Great explanation Mr Alex,very good keep sharing with us your built & upgrades & motorized bike wey learn a Lot ,Say hello Joe & Bros ,suscribes thanks.

[@jonathanlincolnthefamouszi2137]

Hay what's that thing called that holds the engine while you are working on it

[@kleptoklepto2560]

hey bruva! ive got the "TDR 100CC MOTOR! im thinking a bit more speed! what do i need to do with the piston n top end to spruce her up?

[@peterjohn3180]

Can you help me? I've bought a cylinder kit for a motorised bicycle engine but the stud spacing is 50mm and all my cases have 45mm spacing. Any ideas?

[@bryduhbikeguy]

Holy mackerel.2nd comment?Glad to see you back.

[@TestTemp-rd1tu]

Please post specs of your super high-quality video camera.

[@rgbigdog]

You can us a worm-gear hose clamp to squeeze the rings.

[@mathewsphiri-qd1db]

I like your shop

[@kaoskustomgarage1741]

Venoms looking good 😉

[@lucianlucian1116]

I could mount an 80 cc cylinder and piston on a 100 cc engine because in Romania there are no 100 cylinder and pistons, I want to point out that it fits in holes only that the 100 cc cylinder and piston is 50 mm and the 80 cc has 47mm?

[@thecbc7658]

What socket size do I need for the acorn nuts (head)?

[@Drago_fire2164]

Can anyone drop a link to a windowed piston for the bt-80 electric start motor? I can't find any measurements online and I don't have the tools to measure. Thank you

[@thecottsdalesegment9141]

Was riding yesterday, bike (phatmoto all terrain) died and would start back up. Cleaned the clutch couple days ago, may have got some oil on the clutch but don't believe inside... any suggestions?

[@Godchoosenfew101]

Thanks😊

[@JMB676]

Hey bud glad to see you posting again, I didn’t get a notification but I stopped by just to see wheee you have been. Not sure y not getting notifications I have it all turned on but at least I seen your here. Hope all is well bud, hope your well and hope you stop by my channel too. If you do please leave me a comment letting me know what you think of the content. Thanks for sharing brother.

[@damarcuschaney503]

What size are the cylinder head studs?

[@isasauseda5889]

Happy holidays

[@kimdecastro9156]

great video alex .question I notice the head has two gaskets on the bottom .if you took away one gasket will it change performance or no difference at all. first time builder.

[@Jon.Carlsen]

Normally there is one gasket. I'm wondering why Alex used two as well. Adding a gasket raises the cylinder height creating a slight drop in compression.

[@raulcruz6601]

EXCELLENT

[@larryshaver3568]

doesn't the wrist pin have a bushing? i didn't see one

[@MotoredLife]

Nope just bearings

[@upsidedown1986]

Is there a top and bottom ring, or are they both the same?

[@MotoredLife]

Both are the same! Good question

[@billpfann332]

I have a question after about 7000 hard mileage I'm rebuilding my motor.while taking the boost bottle off the frame I noticed the boost bottle was completely full of fuel.Is this normal.I ride hard and wide open all the time.

[@MotoredLife]

Boost bottles are nothing but problems. Imagine trying to tune with all that fuel pouring into the carburetor at random times!

[@billpfann332]

@@MotoredLife it seemed to help the motor idle better, next question.In your opition whitch is better a brass head gasket or copper?.again I ride my bike hard wide open.

[@keeganhache6667]

@@billpfann332 if you run a two stroke wide open all the time you will destroy the piston and cylinder lining

[@billpfann332]

@@keeganhache6667 yes I know this, I r in a rich oil mixer, and ad a Teflon additive.keeping motor cool help the life also.

[@dustinh4175]

Im not sure if its a good idea or not but i packed a little grease into to piston clips to try and keep them seated. Bout a tank of gas threw it so far so good.

[@topdog3407]

did it work fine?

[@fernandocastillo8026]

My cylinder doesn’t want to slide down I’ve tried so many times and I’m not sure why it’s really annoying

[@MotoredLife]

Ur rings are not in maybe?

[@fernandocastillo8026]

@@MotoredLife They are I did it how you did it in the video and I don’t know what’s wrong I’ve been trying to slide it down for 2 days I stops sliding when it reaches like the gaskets

[@MotoredLife]

@@fernandocastillo8026 the gaskets?

[@fernandocastillo8026]

@@MotoredLife yea it’s one side that looks like it doesn’t go in, is there any place I can send pictures to and you could help me out? I’ve been trying to fix this for 2 days

[@MotoredLife]

@@fernandocastillo8026 for sure! [e-mail]

[@joshcolbert4682]

can you uh upload more often?... ...

[@MotoredLife]

Omg thanks so much for saying this! i needed a good kick in the right direction! You know what just because you asked I'm going to post a new video soon

[@joshcolbert4682]

@@MotoredLife haha thanks i really enjoy your content. quick question do you think the laws would change if more knuckle heads get these bikes?

[@MotoredLife]

@@joshcolbert4682 I think they would change for the worst honestly 😬 I've seen people do some dumb things on these bikes and get hit and get hurt

[@joshcolbert4682]

@@MotoredLife i agree, im in a small town and i think my plan is too not make my bike look so cool or appealing so not just anybody would get one cause i think if a lot of people did then the cops would be all over our ass hahahso like maybe i might sand my gas tank and paint it pink or somthing not so flashy, just trying to make it seem like the bikes arent as cool looking as they really are XD

[@joshcolbert4682]

cause other people might make nusances and get the local ordinances changed, so i try to make the bike look like not as cool and fun as it really is

[@waynemcknight9999]

Engine won't turn with cylinder head on

[@MotoredLife]

@waynemcknight9999 theses engine come in a low hole piston and a high hole piston confirm you have the correct one

[@JMB676]

Hope all is ok bud haven’t seen you making much content, hope you come back to it and share more gas bike stuff and just show us what your up to. If you get a chance I hope you check out my channel but most of all stay tuned to my channel in about a month or less I’ll be posting some very cool frank builds I’m doin all myself in my bedroom/shop lol. Can’t wait to silhouettes how I do it, I have wanted to build one ever since I started in the hobby a lil over a year ago now.

[@fernandomartin4147]

If you wanna make it faster straight pipe it. You have to cut off the exhaust and just leave the first part of the exhaust that is connected to the head of the motor. Trust me I did it and it gives it way more power and it will not break I swear I had it like that for like 3 months.

[@themadasshatter1088]

You can't over-lubricate.

[@matthewpeter4034]

Dude I think the kit I bought doesn't have a removable head lmaoo

[@BuildBreakFix]

Wow back from the grave again! Lol

[@matthewchorman8910]

Man u for get some part in this video with most kits they don't got gaskets and the bearing for the the piston man u really trying to blow a motor

[@erikwolf2771]

I News Money!

[@worscohli]

I can already tell the wrist clip is going to be the most annoying part during this build... honestly it seems like some of these things couldve already been assembled... im going to do it. but i just hate how they make engines rely on Small Ass Pins for whatever reason...

[@jerryb1234]

He's not back, he only does a video whenever somebody sends him a freebee, (smh)

[@MotoredLife]

Got a few more to get through then i get to show off my projects!

[@TestTemp-rd1tu]

Stop trimming your fingernails with a lawnmower.