82 custom just will not ideal below 5000

[HUCKIE]

Short story, I NEED HELP! Longer story. Have a 750 we just picked up. starts right up but after 10 seconds just start going up, likes to run about 5250. checked valves, installed new boots from carbs to intake, cleaned out carbs, like i said she starts right up. Where should i be looking? After it cools down i am going to hook up my sync and see what it says. even with throttle cables unhooked and ideal back all the way out after 10 sec it just starts going up. any thing would help and i really appreciate it in advance.

 

[Rod]

Sounds like it is getting too much air. Are you sure the slides and closing all the way?

 

[HUCKIE]

Yes, not sure is floats are closing off. Looking for a rebuild kit now. Can not find any air issues between the carbs and the eng.