Torque converter troubleshooting

[Honda450R]

Not sure if I can explain this very well but I have a torque converter and when I hit the throttle it feels pretty responsive, but when I actually take off and try to go it feels like it engages for a brief moment and then acts like it has no power, I have it wide open but it takes forever to go anywhere, I can still go to the tops speed but it takes awhile, I lifted the back tire up off the ground and while looking at the torque converter while at wot it seemed to work fine, and yes the belt is on correctly and it is lined up, any help is greatly appreciated

 

[bob58o]

What engine?
What vehicle?
How much does it weigh?
How much do you weigh?
What size OD tires do you have?
Which Torque Converter?
How old is the TC?
Have you ever done any maintenance on the torque converter?
What size sprocket on the Torque converter?
What size rear sprocket?

 

[Honda450R]

It’s a knock off tc that I saw a lot of positive reviews on, it’s brand new, gearing, front 10 tooth, rear 54, tires are 12”, 180 lbs, and it’s just a regular mini bike, ik it’s something with the torque converter because I had a 10 tooth clutch before and it was just fine, it’s a predator 212 stock with just exhaust upgrade not air filter

 

[bob58o]

I guess the next logical step is to open it up, take it apart, and see what is causing the issue.
Repair or replace parts, clean, lube, re-assemble, and test is it out.

Maybe the driven spring in the secondary pulley is shot and you are starting in high gear?
Maybe the little button things on the cams on the secondary pulley are missing?
Maybe the garter springs in the driver unit are shot?

Take it apart and show us the pictures. Driver unit and driven unit. I don't know the the issue is, what pictures will help.