So I replaced everything electronic on my bike
Did the system work correctly before replacement?
What was the reason for replacement?
What was originally on the bike? (I tried to find out by searching on the "Nakota 48v 500 w" you list in your title, but there are no results, so you will need to provide this info)
What is the complete list of parts that *were8 repalced?
What is the complete list of parts that were *not* replaced?
What is the specific wiring that was used on the new parts? What wiring was changed from the old parts?
Does "electronics" in your description include battery, motor, etc? Complete list of parts that you mean by this is required.
I've tested all everything says is great
What tests were performed, what were their exact results, and who or what "says" is "great" and what does that mean, specifically?
well I hook all the new electronics up I go to give a gas
Gas? Your post doesn't mention any gas or gasoline powered parts, so you'll need to specify what that system is and whats been done for that, whether it worked before anything was changed, why it was changed, and what it was changed to.
and nothing I can put the bike on a stand give it gas and it starts to move stop start stop stop if I give it a little guidance then it'll move for about 20 seconds and then shut off yet my display is not throwing any error codes what could this be I need help
Does "shut off" mean complete power off? Or something else? If so, what?
How does it move if it is on a stand? Do you mean that the motor spins? Or something else?
I highly recommend using complete sentences, including punctuation, etc., as it will make your posts much clearer, more understandable, and make it possible for us to clearly and correctly respond without guessing what you might mean.