BB I don't have a horizontal shaft Chonda the motor on the chipper is a Honda sloper with horizontal shaft, and to get to the governor bit I have to remove the petrol tank and that looks a bit messy because the governor arm and the rod are mounted up under the recessed section of the tank. Bottom line is the governor setup is the same as the vertical shafts, spring slips over the rod and hooks one end into the butterfly and the other into the governor arm. My son will be here from NZ tomorrow and we can remove the tank and he can get a close up pic of it if you want, I can't work out how to take close ups with my camera, they just end up blurry