Grizzly Engine & Transmission Engine ignition breaking up in reverse Grizzly 450 August 8, 2015 When I place my 2009 Grizzly 450 in reverse and give it 1/2 throttle or so the ignition starts breaking up at higher rpm. Is this normal? If not, does anyone know of a fix? Thanks in advance. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related