I live even further down Shotwell and the prospect of rolling over speed humps from the entrance all the way to my house is nothing I look forward to. In addition, I also ride a motorcycle and speed humps are very dangerous to cross on a motorcycle.
So... are you mechanically inclined with motorcycles? My son has this honda... I'm just a computer geek, so I'm no help.
I know more about cars than bikes but I do have some knowledge about them, depending on the symptom I might have some suggestions.