I never leave the house with out some sort of tool in my "Man Purse " as my wife calls it I carry in it a spare CDI with plugwire , spark plug a Phillips & Regular head Screw driver. Various nuts and bolts I have a 1/4" and a 3/8" drive ratchet an array of sockets I also have 2 crescent wrenches a pair of Dykes Kline of course.10" Stilson wrench , Needle nose pliers , electrical tape and an MRE just in case, I crash down and embankment and need to stay there a while. Oh yea and I keep 20 oz of water on the bike at all times