full circle gives a bit more torque aswell you should try using multi stage reeds and a walbro wt603 carb

So did turbo crank mod work

@@meyou8716 Ive never tried it yet for fear that mine isn't balanced

I did that mod it works but perfectly on my pocket bike

Where is that video??? I’m really depending on you here to get my bike running bud.

The practice of adding material to the case to decrease volume is referred to as "stuffing".

Good stuff thanks, glad I never used the 'turbo crank'

And that's what we used to call stuffing and that's what it still is stuffing not taking metal away..

@@jaguars004 I disagree you want less volume in the crankcase you don't want more volume because that's just more , the more metal in crankcase = more Aire / gas flow to get immediately in transfer ports. I've worked on these things for many years and I've been designed many engines and still do, and this is just simply wrong

@@ronziebell337 exactly thanks..

Fang Of Truth I was gunna say that. 1000 percent true

Changing from the original crank to a full-circle crank is the same. These vibrations are second order and to be honest with these little shitty engine, reliability isn't a concern.

the amount of vibration produced from the crank like this and circle crank is night and day. the stock "turbo" crank i see mainly in home use land use machinery. i have some of them and rebuilt some and use them still to this day (1990). it vibrates a lot more really. your hands will feel it. how can i tell? the same engine with circle crank is on a moped. and i ride it.

This started in the RC hobby world and a lot of people claim it adds power!

You say ots gonna cut through the fuel. But no fuel is in that part of the engine. Fuel is only in the top end.

@@xtrah8ed4life in this style of 2 strokes the crankcase is used as a supercharger. the piston going down pressurises the fuel and air mixture in the crankcase witch rushes into the cylinder as soon as the intake port opens due to pressure difference. this extreme change of pressure in the crankcase draws in a fresh air fuel mix through the reeds

Agreed stuffing would work better.

@@xtrah8ed4life to tell you the fuel absolutely goes to the bottom and how do you think it gets to the top? I don't agree with what he's doing to the crankshaft but you need to understand the way a two-stroke works

The Workshop Thanks I’m assuming your just going to bash the balancing of this?

You cut on the wrong edge of the crank. You want to take the material from the inside not the outside.

The Workshop didn't know you watched this.

im pretty sure knife edging would be for 4 stroke engines. it keeps the crank from slapping the oil as much. but i guess i can see what you mean in a way.

Basing off my video, would you say mine is off? Or is it impossible to tell

Trust me you'll be able to tell when you start it and it vibrates you'll notice it

Oh and another thing don't put that stock exhaust you're losing a lot of power I made a homemade exhaust for mine it breathe better more power

The syx Moto 50 dirtbike ones?

Idk if you watched the whole vid but The turbo crank is considered better because it will cut through the air and fuel faster and for the full circle, what you mentioned I cover in the video when comparing the two cranks, thanks for the Info here!

i dont understand what you mean with cut through the air and fuel. the function of it. only the gasoline to the air ratio matters. design of circle crank produces lot less vibrations. the crank should be smooth and round and as tight to the crankcase as it can be. it should also be heavy so engine can sustain momentum easier.. it should be balanced by weight between piston and crank itself frequently the piston is lighter for higher revs but you take off momentum and force. it should also be balanced by length so it is not bent. a bent crank can snap at high revs. the stock crank because of its shape creates internal currents that distort the fastest flow possible. the smaller the space in the crank case faster the fuel gets to cilinder. also i recommend that you port match the Cilinder ports to the crank case. i said it wrong before. after that if the stock crank ports still have some angles that cilinder ports did not cover then you match the crankcase. i say this because the ports on bigger cilinders are frequently larger and different shape. you can also change the springs in the clutch so it goes at higher rpms. i talk from experience and only want to help you.

Dylon Desbiens There is a youtube channel called 2strokestuffing. He makes great videos about balancing and truing your crank and other stuff too.

Dylon Desbiens I think even the most unbalanced full circle crank is more balanced than the one you made yourself.

i personally think the crank cut like that is actually a pretty good idea. sure, the circle crank displaces more, but it doesnt atomize the fuel as well as that angle cut crank. makes sense to me. im curious to see if that tiny amount of weight even affects balance. i kinda doubt it.

Isn't that 2 questions?

Dylon Desbiens I think you should port then engine and the intake between the carb and reed valves

Keep the crank stuffing once that area is clear, then do the ports

Dylon Desbiens do the performance ignition coil

Full circle is so much smoother . The half moon crank is garbage a throw back from the old non center spark plug . also they love a decent reed valve a rocket key and a massive expansion chamber.

just so 1 Well, Just help myself, With a thanks thoses words, I get how experienced are some . Have nice feed too !

There you go agreed

3 jaw puller

Some of them have a key and some don’t, if you lost it it’ll be fine you can just put the clutch on.

No really need to torque these engines

No I wouldn’t do this mod

@@jaguars004 is there something similar i could do?

I did the full circle crank in this. Seems to help Performance some

@@jaguars004 thanks bud ill try that

Decreased case volume/increased pressure. If run in conjunction with a CORRECTLY reeded engine it produces a lot more power.

I honestly don’t know yet, they’re all different but I hope to go over the advertised 30mph or so they yield stock

Less balanced crank too 😂

I would be careful on that one, I just got a comment today saying someone ordered and they didn’t ship it. Idk if they ship there tho. Ask

If it’s a 2 stroke, I wouldn’t try it

Dylon Desbiens ok, for what reason? Is it possible with a 4 stroke

Yes it’s possible for both

4 stroke is very possible, there’s a lot to say about turbos and 2 stroke tho. I would just do your own research, lots of opinions out there

Dylon Desbiens Yeah, ok I was just curius. I would never do that to my scooter cus it runs like thrash. Thanks doe

Lol. 😂😂😂💯

Turbos will not or should not work on a 2-stroke because their self supercharging you put a supercharger on a 2-stroke you're going to blow out more seals . again they are not made for supercharging they are self supercharging when the Piston goes down it's a positive force that charges the transfer ports The only two stroke that needs and has to have a supercharger is a two-stroke Detroit Diesel and it has nothing to do with one of these two strokes I've worked on both all my life and I know both turbo supercharging does not work on a 2 cycle get it out of your head right now