I had some time today to install the
Yamaha Speed Spring from Cart parts plus. The spring works as advertised. As a matter of fact it works a little to well. We had to tone it down a bit because the G-MAX has some body roll issues and we almost flipped it. Before we had just tightend the governor nut all the way but with this spring combined with the tightend nut it goes 30+ easy. May not be as fast as disabling the governor all together but its pretty darn close.
Below are some pics of the install.
The zinc plated spring is factory. I'll try and post a few more later.