All Jr1 Honda engines need to be brought to IMI to install the stock flywheel key before racing begins. We are doing this to lower the top rpms and top end speed. We will also check the internal parts of the engine, check the carb, clutch and adjust the valves all for no charge. The key is a tech item and must be updated to the 2008 rules. If you wish to have a more complete service like a new piston, rings, valve job, clutch service, rod or a billet rod installed we will also do this at the same time for a very reasonable price.