YS 120 Questions
12-22-2008, 04:19 PM
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YS 120 Questions
Hello All,
I Bought 3 YS engines from an estate sale a while back (my first 4 strokes). I recently mounted the 120SC on an airplane and I am setting it up to fly. The engine starts and runs great but I cannot get it to stop running. I have confirmed the butterfly in the carb is closing all the way. It will eventually die after 15 seconds of coughing. Does this indicate an air leak somewhere? What should I look for?
Also, the right side camshaft cover has been drilled, taped and a fuel hose barb installed. I have a piece of fuel line attached with a plug in it. I have ordered a new cover. What would this be for? The only thing I could think of is to lubricate the cam. Any Ideas?
Thanks for any help you can offer,
Jim
I Bought 3 YS engines from an estate sale a while back (my first 4 strokes). I recently mounted the 120SC on an airplane and I am setting it up to fly. The engine starts and runs great but I cannot get it to stop running. I have confirmed the butterfly in the carb is closing all the way. It will eventually die after 15 seconds of coughing. Does this indicate an air leak somewhere? What should I look for?
Also, the right side camshaft cover has been drilled, taped and a fuel hose barb installed. I have a piece of fuel line attached with a plug in it. I have ordered a new cover. What would this be for? The only thing I could think of is to lubricate the cam. Any Ideas?
Thanks for any help you can offer,
Jim
