hgpsmerk 8 #1 Posted February 21, 2022 My second hand 314-8 has a knock on start up. Any ideas on cause out there? Share this post Link to post Share on other sites
lynnmor 7,813 #2 Posted February 21, 2022 There are a lot of moving parts in an engine, a knock can come from any of them. A video might help us make a guess. Whatever it is, if it is bad enough the engine needs to be disassembled and repaired. I would start with removing the head and see if a valve is sticking and the cylinder is in good condition. 1 Share this post Link to post Share on other sites
