Coleman bt200x throttle problem

[Yatley]

Hi! I'm wondering if anyone can help! I have a new Coleman bt200x. I put the performance air intake and carburetor on it as well as new exhaust and muffler. Now, when I have the throttle down it seems to sputter or cut in and out. It only happens when I give it a lot of gas. You can hear and see it in this video.



Any thoughts on how to fix this or what the problem is?

Thanks a bunch!

 

[Dan O]

Hi! My name's Dan. I've got Coleman BT200X throttle is wide open. It's sitting jack stands because even when you start it it wants to run off when the choke is off. Was wondering if you can help me address this issue?