Hello all, i have a 2009 busa with 30000kms in dash it has a moded stock header to 4-2-1 with akra mufler. The problem it had is strange idle and noises here's à video of the problem i hope it's not bad
Adding to this idle thread instead of making a new one...I've never been around another stock Hayabusa so does it sound as normal as a crummy phone camera will allow? Just did oil, air filter, throttle synch, and new plugs. Idles around 1100-1200 on the tach.
And when I say stock...I still have a flapper in the airbox
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