SYX moto 50cc pit bike upgrades?
 

I've searched the forums for this bike, I did try ordering a carb I saw in another post for what I thought would be the same engine, but it's too large.

Anyway, does anyone have experience with these? Can you direct me to where to buy a better carburetor? As most know, the original is a joke. Once I got everything tuned up so it would start and run well, the petcock is leaking bad now.
Spark plug suggestions welcome, as well!
Here's a link to the bike:
https://syxmoto.com/collections/dirt...orcycle-orange

Any help or suggestions welcome, thank you!

I have a few

Carb:. TC-Motor Racing Carburetor Kit Carb Air Filter Stack Manifold Intake Pipe For 2 Stroke 47cc 49cc Mini ATV Quad Kids Dirt Pocket Bike https://www.amazon.com/dp/B07JFZG6FV...ing=UTF8&psc=1

The kit is sold out, but look for one like this

I bought a couple engines. Most engine kits are good, though

XLJOY Big Bore Kit 44mm Cylinder for 2 Stroke 47cc 49cc Engine Pocket Bike Mini Dirt ATV https://www.amazon.com/dp/B01N59J68J...ing=UTF8&psc=1

I also upgraded to a hydraulic brake for mountain bikes
https://www.amazon.com/dp/B08778ZXHS...HTRY6XPTXJV0V0

You need a +0 mountain bike adapter


JooFn Disc Brake Caliper Mount Adapter 0mm is Front 160mm Rear 140mm https://www.amazon.com/dp/B07NV7DV5J...ing=UTF8&psc=1

Also, 190mm mountain bike shocks work, but you need a heavy spring. I have a 1200lbs spring on mine.