read on this site somewhere where someone was haveing problems installing fuel lines.well i just went through that my self on my 750,seems like those nipples on the carbs donot like to stand still while hose is being installed.here is how i cured that i used a coat hanger no varnish or paint on it (high tech) threaded through gas line,little grease on the end and clip in proper space.shoved her down and presto hose on with clip in place.now for the tank end little fingers maybe, on your on on this end