Just bought a AHS254 extended trimmer. The "hybrid" 4T engine rev limiter kicks in @5100 rpms. I thought that was little low. It's the first Shindaiwa I've owned. Maybe I shoulda bought the 2T version. I emailed the factory for the specs. Hearing the limiter all the time sucks.
It's quite and seems to have the torque so it is what it is.
It's quite and seems to have the torque so it is what it is.