Motorized Bike Crank Balancing Walkthrough

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Motorized Bike Crank Balancing Walkthrough

Рет қаралды 8,268

Күн бұрын

Not the best quality or camera angles but i hope this can help someone out there isnt many recent videos on this. Again, 1/2 inch drill bit 15mm deep in the middle, and 7/16 5mm deep on the 2 side holes. Videos on porting coming in the future

Пікірлер: 31

@keeganhache6667 Жыл бұрын

Thanks again man taking my motor apart and I’m drilling it with a drill press so it should be a little easier.

@LAHover 3 жыл бұрын

Thanks for posting this. Will try it in the future :)

@seanolson5900 3 жыл бұрын

Night and day difference you will never go back to stock

@RaoulDuke224 4 ай бұрын

Only some engine crank need balancing you should try wrist pin bearing spacers

@Paul_Gale 7 ай бұрын

My ChinaDoll shakes bad at 24mph, on my mountain bike Thanks, i will have to give this a try plan on doing an expansion chamber soon with the stock chinadoll muffler modified on there as a silencer it will also stop oil from dripping from the stock muffler when stored after riding

@user-nu5wf8uf4c 4 ай бұрын

Howd it go?

@Paul_Gale 4 ай бұрын

@@user-nu5wf8uf4c The cheap dolphin pipe and silencer eliminated most of my 4 stroking problem I had a broken 304 stainless 8mm stud in the front that when fixed helped eliminate a lot of vibration issues.( luckily I got it out) Just hit 40 mph with a 36-tooth sprocket, (downhill.) (Stock ,,, other than exhaust "no mods") there are some pictures of my bike on my youtube channel. trying some new shit super reliable 30 year old bike on its 2nd 66cc motor

@medicwillcrypto9405 2 жыл бұрын

Decent information but this is lightening, not balancing. To balance you would need to take the actual weight of the reciprocating mass and remove that much material for a 50% balance, which might not even be ideal for the application. Lightening is not balancing.

@seanolson5900 2 жыл бұрын

And this is the result of weighing the reciprocating mass and taking off weight to get a 60-65%

@seanolson5900 2 жыл бұрын

And this is for motorized bikes where the reciprocating mass is pretty much the same on any motorized bike motor so I didn't bother videoing the weighing and the math

@MedicWillCA 2 жыл бұрын

@@seanolson5900 close but not true. For example if your running reeds with window piston it changes every thing. Many run reeds

@seanolson5900 2 жыл бұрын

@@MedicWillCA yes I know that windowed pistons are lighter and will be different than this I'm talking a normal non reed China doll

@jaredbourgeois3367 2 жыл бұрын

How are measuring the weight that needs to be removed for actual balancing?

@breezetix 11 ай бұрын

15mm, from the very tip (the cone part) of the drill bits?

@aydinkud7167 2 жыл бұрын

Hehehh good video

@dannyoutlaw9919 2 жыл бұрын

I work in a engine shop building race engines and the only way to know where to take weight off is to spin balance and every one is going to be different and alot of time you have to add weight not remove it ... this is not showing how to balance unless you show how and where to remove or add the weight....

@seanolson5900 2 жыл бұрын

Good enough for a garage balanced crank

@michaelrogers3857 2 жыл бұрын

Lmao bozo + no maidens + ratio

@defyzx6817 Жыл бұрын

i was just thinking this, I built over 5 VG nissan motors, anyways my machine shop does the balancing, and they use a pretty fancy fixture/tool. I've seen it in action once , I wonder how that applies here.