Originally Posted by jwm2

Just a heads up, the novarossi carb retaining lock fits the go engines perfectly. They are the same as the ones that come with the gx r series carbs with the o-rings. I broke one last week and bought a couple nova's as replacement. They are about $3/ea on ebay if you search for: Nova Carb or use the following link: http://cgi.ebay.com/Novarossi-18000-...item3a594c475f