Briggs has released their 2017 rule set for the LO206 engine. Unlike previous years there are quite a few changes to the rules. Due to the popularity of this engine Briggs has clarified technical specifications for cylinder heads, exhaust, and carburation. The changes are highlighted in red and can be found on page 4, 5,7,8,10,11,13 and 17. PLEASE pay close attention to paragraph 19 “Cylinder Head” item e. I highly recommend that all Briggs racers for calendar year 2017 become knowledgable with the tech procedure for the cylinder head. It may come handy this year. Of course, specs regarding to fuel and weight are governed by HCKC. Please refer to our rule set for additional information. HAPPY MOTORING!