Recent content by fourstroke

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    Engine Honda GCV135 engine: throttle valve open in idle position when not running?

    Hi all, this is my first post here. Very happy to discover such a treasure trove of expertise! :smile: My trusty 20-year-old Honda HRB475C mower with GCV135 engine has been idling very poorly for some time. It was time for a new spark plug and air filter and I decided to have a go at cleaning...