Dead patch

[FatAsstronaut]

Hey biker gurus, I have a lil Kawasaki ZZR250 which has what I'd call a 'dead patch' in acceleration at around 4000RPM. I'll open the throttle and it'll wind up to 4k easy enough, then will hesitate for about a second at those revs before continuing to accelerate.
My guess is that it's primary to secondary turbo transistion lag but I could be mistaken... :blink:

Does anyone have a theory as to what that might be?

[zadok]

"primary to secondary turbo transition lag" What language is that? :motu:

[FatAsstronaut]

Tosserish, with a hint of Bullshitarian :p