Honda schematics
Clean battery terminals first, make sure ALL wires are clean and tight! Trace the large hot (+) wire from battery to the solenoid, then trace the large wire output (+) from OTHER TERMINAL directly to the starter connection. The starter is ALREADY grounded.
Get a fresh, fully charged battery, make sure the ignition switch is on, handle bar switch in run position. Push the start button. It should at least turn the engine over!! If this does not work, leave the ignition switch on, jump the two large solenoid terminals with large screwdriver, (SPARKS WILL FLY!!) and see if it tries to start USING THE SCREWDRIVER ONLY!..If it tries to start..or does start, replace the solenoid, (disconnect battery first). If not, check battery amperage and voltage!!
try this and repost