Yep, it's a 10 cubic inch 158cc Briggs and Stratton Quattro 40.
Firstly, remove the cowl and clean all the grass etc under there, sometimes it impedes the governor function. After you've done that start her up and adjust the governor setting by bending the tabs, where the springs are anchored to, in or out to increase/decrease engine speed. The large spring controls high speed RPM while the small spring generally controls the idle speed.
Don't worry too much about the mangled larger spring, you can cut those coils off and and bend out a new coil to anchor to the bendable tab.
Let us know how you go.
Cheers, Ted
Are you Nostradamus ?
Yeah quite a bit of clippings underneath.
Have had a play and can see how it works, without that big spring working there is very little effect of throttle lever movement on the plastic throttle thing whatsit on the carby.
Other than that seems all good. Will get a few bits and pieces and sort this. Bloody new Echo has an issue with the starter cord and so am currently trying to sort that.
Thanks guys. Wouldn't have thought Brigs would've been in China in the 90s ?
