I have an '06 Scag 48" Velocity deck with the 17hp Kawa. engine. It ran fine last year, no problems. I adjusted the deck height (removed 3 bolts on each side, moved it down to lowest of 3 holes) I ran it today and when I engage the blades the engine shuts down. The engine is not struggling to engage the blades, it shuts down like a safety measure is tripping. Brake and operator paddles and gear engagement shut down the mower properly. I'm assuming moving the deck around possibly loosened the clutch wire? I checked connections-OK, but I did not clean any connections. Any advice here would be appreciated. Thanks.