Hi all, My Lazer HP with 23 hp Kaw has 96 hours on it. This sping I've noticed that under heavy load (going up a hill while mulching thick grass), the engine makes a clanging sound. Doesn't seem to affect the cut, but sure is disturbing. This whole spring I've hoped for it just to "go away", but you know the story, it's gotten louder, and does it more readily. I know I need to take it to the dealer, but I'd love to have some idea of what it could be. I've checked the oil level, and at the end of last season installed new plugs and fuel filter. Any thoughts?