AMRIV1983 2 #1 Posted May 7, 2012 My 520 Throttle Cable will go from Full throttle down to 3/4 only while mowing my yard. Any ideas what would cause this??? Thanks Addison Share this post Link to post Share on other sites
312Hydro 473 #2 Posted May 7, 2012 Mine used to do that because the hood hit it . The welting was worn out where the hood sat. Your 520 has a different hood though as it rests on top doesn't it? Maybe the rivet that holds the throttle lever needs tightened? Share this post Link to post Share on other sites
tunahead72 2,347 #3 Posted May 8, 2012 Here's some more detailed information on that rivet and some good ideas for tightening it: Share this post Link to post Share on other sites
AMRIV1983 2 #4 Posted June 20, 2012 I finnaly got around to looking at throttle cable, and cripped the rivet a little and it works like new again. Thanks for the help!!! Addison Share this post Link to post Share on other sites
