Will this cheap CVT fit this cheap engine?

[MrDoboz]

And is it even a good idea?
Sorry in advance for maybe being stupid, I'm a total noob in the field, this is gonna be my first build.
So I ordered this 49cc 2T Samger pocket bike engine ($60 from Ali) and planning to put it on a 4x26" fatbike. I live in a quite hilly place so I won't even be able to get home without a really slow gearing, and that's not fun. I figured I'll go for some kind of cvt or other way of changing gear ratio if there is one (except for jackshift derailer setup, that sounds rather weak and dangerous). Also I'm gonna get rid of the pedal drivetrain as it's useless, the hill I live on top of is so steep and rolling resistance of the fat tire is so bad, I can't even pedal up with a gear ratio of 28-32 (chainring-sprocket). Also my budget is rather limited, my supply options is Ali and eBay with free shipping, my tool park is lacking, and I have no idea why I even ordered the engine, so that's my story in short.
so what do you think? can I pull this off? or you have other suggessions of what I should do in a similar price range (this CVT is $70 also on Ali)?
Thanks for any input and sorry for the rambling

 

[cloakedvillain]

from what I'll likely have to spend on tools and materials I could probably buy a car lol

yeah I've seen that video, dude forgot to put the clutch bell back on xD
it'll be interesting to see if it functions as a dynamo as well and how much power I can draw from it before it starts smoking. planning to run my 65W halogens from it. and a klaxon horn

Its liable to have a sprag bearing. Even if it didn't I wouldn't trust a starter to work as a generator. Starter motors build up too much heat too fast.

There are little kits to use the magneto ignition as a generator but those have pitiful outputs. Could always try making your own stator but you would be wrapping coils till judgement day.

 

[MrDoboz]

Its liable to have a sprag bearing. Even if it didn't I wouldn't trust a starter to work as a generator. Starter motors build up too much heat too fast.

There are little kits to use the magneto ignition as a generator but those have pitiful outputs. Could always try making your own stator but you would be wrapping coils till judgement day.

Yeah the magneto is already weak enough, and there isn't much space around the flywheel for a custom stator, especially for a powerful one. I don't think the chinese would think of putting a sprag bearing in it, and if they did, that would be all over the product pages as a cool groundbreaking feature. But if they do indeed use such device, I can just jam it