Everyone. I need some help with my hyper 7. I cannot figure out why the car bogs down everytime I slow down or stop. The car runs great once it is opened up, but the low end is horrible. I have the hyper .21 4 port and it is used. If I pick the buggy off of the ground it reacts perfectly. Only bogs when there is a load on the engine

Could this mean that the engine is shot?

Is is something with the clutch?

I am not new to the hobby, but I cannot figure this out. Hopefully someone will be able to give me some ideas.

Thanks.