In this video upgrading the stock carb on this honda xr150 with a pwk 28mm carburetor. Gave the bike a lot more torque and power!

Update had to change the jetting after riding it. It needed a little bit more fuel.

Carb used

https://www.ebay.com/itm/404650607612...

Intake manifold

https://www.ebay.com/itm/373801170189...

Airfilter

https://www.ebay.com/itm/315046322557...