NEED HELP,JUST BOUGHT 97 BANSHEE REAL CLEAN,IT HAD AFTER MARKET PIPES AND AIRBOX WHEN I FIRST RODE IT IT WAS PERFECT!TO MAKE THE DEAL WE PUT THE STOCK PARTS BACK ON(PIPES,AIRBOX)NOW I HAVE NO POWER STARTS FINE BUT NO POWER.DOES IT HAVE TO BE RE-JETTED?OR COULD IT BE THE AIRBOX?WRITE BACK PLEASE THANKS....

 

Just needs rejetted.

 

re-jet back to the stock 200 main jet and check to see if the needle position or pilot jets have been moved from stock.

 

depending on the type of aftermarket pipes, you may need to change the needles and pilot jets.
the stock jetting is a 200 main, and a 25 pilot jet.