cousin's 2021 Zongshen GS250 is throwing tantrum

[MonkeyLove]

My cousin just picked up a 2021 Zongshen GS250, and he's running into a snag.

I did a quick check, it seems like the carburetor valve settings might be off because the bike dies when I apply gas. I've already taken the carb apart and cleaned it, but no luck.

Does anyone happen to have a service manual with info on the carburetor settings for this bike? That would be a huge help!

Also, we're all ears for any tips or mod ideas you guys might have for the GS250!

 

[VerMontes]

It could be the pilot screw or the float level messing with the fuel mix, I don't have the full service manual PDF, but you might find a copy floating around somewhere else except someone else can help you out

 

[Lady Liberty]

I ran into a similar issue on a small Chinese 250cc bike a while back. Even after cleaning the carb, it kept dying when I blipped the throttle. I realized the pilot screw was slightly out of spec...once I adjusted it according to the service manual, the throttle response smoothed out completely, it made a huge difference in reliability