I had this question about a week ago and restoreRob did help me , It's just more of a problem. I have a 48" bobcat with a kawasaki fb460v engine. In the mornings it seems to have a problem starting but once it is started it is fine for the rest of the day. RestoreRob told me to adjust the butterfly in the carb which I did and it did work. It sat over the weekend and when I started it this morning I checked again to make sure the butterfly was still closed and it was but it didn't want to start(pulled rope about 7-10 times). I had to wait a few mintutes to make sure it wsn't flooded and use a little starter fluid to get it running and the it was fine for the rest of the day. Just to tell you it has recently been cleaned, carb, new spark plug, oil change.....I still have to put a new gas filter on it but the one on it now seem pretty clean. Any ideas????