Won't StartNo lights or just clicks -
dead batteryNo lights or just clicks -
bad contactsLights, push button and nothing -
check your safeties - kill switch, clutch, kickstand, neutral.
Lights, push button and nothing - check your connectors.
Lights, 1 click and nothing - check you get power to the starter relay or stuck relay.
Lights, 2 clicks and a grunt -
stator cover off?Lights, 2 clicks and a grunt -
decomp out of adjustmentLights, 2 clicks and nothing - dead starter - remove and check with battery.
Starter spins, and spins and spins - Check your voltage, if below 10v, it won't spark.
Starter spins, and spins and spins -
Check for spark.
Starter spins, and spins and spins - Check for gas, will a shot of ether start it?
Starter spins, and spins and spins - Check for compression.
Starter spins, exhaust smells flooded - check your air filter - wet?
Starter spins, exhaust smells flooded - gas puking out the carb vents? - bad/stuck float/valve.
Starter spins, clacks every revolution - check your decomp for stuck at full travel.