Toroman/gmax/Bruce
Thanks for all the replies.
As someone who has a mechanical trade background and who either trains apprentices or works with instrumentation and control technicians for a living this thing has really bugged me.
I see a mechanical requirement being to put tension on a cord/spring mechanism in a small space (whipper snipper cord/spring housing) which is vastly different to a mower which has about the same mechanical requirements as a whipper snipper but over a larger area meaning the spring in a whipper snipper has to be tensioned to a much greater extent than than in a mower to achieve the mechanical requirements.
Due to time constraints (grass growing because of rain) I have had to do the unthinkable (for me) I took the housing and spring to the local mower specialist and payed money to have the new cord installed and the spring reinstalled. I couldn't talk to the mechanic as to how he tensioned spring as he wasn't there but all is now OK. I don't begrudge the business for charging me money as the fee was very reasonable.
My solution.
I'm going to pull apart one of my spare whipper snipper motors and sort the starter spring tensioning situation out till have sorted how to do it.
Let you know how I go
