First post and this really is a great site! Very informative. My question is--I swapped a craftsman motor on my riding lawnmower with a Briggs & Straton motor. Now the B&S motor is a 14HP and all went well except 1 small problem. The B&S motor is having problems running. It wont start so i sprayed a little carb cleaner in it and it kicked over and ran so its okay electrically. Here is a kicker. After the second time of starting it this way it ran for roughly 5 minutes so obviously it started getting fuel but then it died out. Would not start again for nothing and 2 days later it did the exact same thing. There is fuel in the sediment bowl so i am sure its getting fuel so it was time to clean the carb. I cleaned the card and here is the problem i found. (possibly( CARB was real dirty and after putting it back it did the same thing as mentioned before)) The main jet holding the sediment bowl has a device? with a wire on it. I have never ever seen this before and everyone i ask says they have no clue. Can someone please tell me what this is and what it does. It has a wire that attaches to another wire that is piggy backed with the wire that feeds 12V to the headlight circuit. I assume it needs 12V but not sure. I do not have the owners manual for this model craftsman that it came from but any help would be great. If this helps the Engine info is B&S Model# 303777 type# 0015-02 It came from a craftsman mower Model# 917.254940 6spd 38" cut. If anyone has info from an owners manual that would be great as well. Thanks again everyone!