Glad to see you back,

Would like to see more about seized engines and repair different methods

Glad to see some more videos brother! Most of the time the reason the chrome cylinders seize is because of the carb being jetted to lean. Or dirt getting sucked through the air filter and scoring the cylinder walls. Less common ways are the piston clips and ring snags.

If your motor truly seizes up and won't turn, You can always fill it up with Marvell and let it sit for a day or two. Then drain it and it should break loose easily. Also if you get all kinds of carbon build-up you can just clean the top of the piston with some Brake clean and it will free up fairly easily. I suggest a cheap Endoscope, Lets you take out the plug and look inside without taking everything apart. Nice video Tony, Keep up the great work.

Air leaks are a big problem with new builders. running lean do to a air leak and not know can kill a motor

4:57 Go by the ring location pins on the piston. The arrow on the top is not always correct. Ring location pins to the intake side

Good little video ❤

1:55 I know everything about these motors I know the arrow I know which way the rings are supposed to be they are only supposed to face the opening of the Ring towards the the carburetor

Mine seized after the first ten minutes of running while at idle. I was able to break it loose by popping the clutch while riding it downhill. No problems after it started again. Still running fine.

Hey Tony I appreciate your advice and expertise on this my cylinder is gouged a little bit on one side and I am struggling to make ends meet right now the Piston is also stuck at the bottom of cylinder is there any way I can make it work for now until I get back on my feet and going

Hi Tony. As per usual with your videos, a lot of good information. I appreciate it. Cleaning the crank case, I don't know, I could be off base here. You have that zinc coated steel pan with the bottom end scraping against that and the highly flammable spray, could the two dissimilar metals rubbing against each other, could one metal be attracting electrons from the other or in some other way cause static electricity to make a spark jump because you don't have a ground wire? You know what I'm asking because I'm not sure? Maybe rinse it on the cement or some absorb all or just on the dirt may be best. I'm just saying.

Mark from LA Hover said the same thing about the arrow on top of the piston needing to point toward the intake port

nice video, do you modify any of your motors? transfer porting, piston ramping or skirt cutting?....

i would put a small brass screen inside the fuel line so NOTHING big enough to cause trouble in the engine goes into the carburetor

Factor ratio of oil and gas could cause piston issues

do you also sell the disc brake that this bike has on the back wheel?

If the piston is seized if the bore how are you supposed to get the cylinder off the case? Kind of skipped that very important bit of information.

I got a brand new bike berry motor that sees at the top TDC. With the head off and it shouldn’t do that. I was riding it to check the motor with head in but now plug and it threw me over the handlebars.locked up dead!

I wish you sold mag wheels in not pairs just the rear mag and assembly

And every bit of my bike was brand new the tank no dirt got into the carburetor or intake

Hey Tony what would cause a motor to die after riding for a half a mile after pulling in the clutch and hard to start.

I've been working with these motors for the past 10 years I have never had one motor seized up

my bike has 7 gears and wont pedal backwards is that mean something broken?

nice video . a lot of good information .

I was riding and my bike just shut off. No weird noises or rattling just off and never fired again. I took off the cylinder and the bottom head gasket was blown. I replaced it and the bike still won't start, crank, burp, nothing. I'm stumped. It's getting fuel spark plug is good but when I pop the clutch the bike just slows down. So the motor doesn't seem seized either.. idk!

Great video, when will you do videos on the BT80? And maybe video on lights for it?? Do you know when they will have more bikes in stock they have some out for awhile..

It was either this one or the last one that you opened it up with orange springtime everybody's calling me saying they're motor seized up hmm 🤔 didn't hear that until yeah everybody's motor seized up

Have you ever saw something in the clutch cause one to lock up?

Bikeberry told me after my motor seized that they redesigned the cylinder and I bought one thinking that it was going to be better it was redesigned they gave me a piston with two rings it went is it was as powerful as maybe a 66 or 49cc they bullshitted me

Forgot to turn my gas on 😢please help it seized! Somone 😢

Like I said I'm pissed off as bikeberry I feel they owe me a new cylinder and piston

Sorry for my language

I can't get it to sping in the clutch assembly phase. Opened up the assembly a ton of metal shavings inside