Grizzly Talk problem needing help solving April 13, 2015 Just bought a 2002 grizzly 660 ran ok when I got it but wouldn’t idle right tried to adjust the what I suspect was the idle screw now it won’t crank and back fires when trying to crank. Any ideas on how to fix it? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related