I just purchased a GSF1200 2005 K4 Bandit. It has an aftermarket exhaust and a K&N air filter. My mate took her for a spin and said she needs rejetting because of the exhausts and filter mods the previous owner obviously didn’t do it. Does anyone know any good motorcycle mechanics in the Waikato area who are familiar with these bikes and what I could be expected to pay or should I just put the original air filter back on?, everything else is great.
Cheers
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