First check your spark plug. second, clean your carb out and check for any debris. third, air filter. My buddy had an old 1986 kx125 and it wouldn't start. we couldn't figure it out for like a month until we just took the air filter off and it started right up. But please don't run without an air filter, it could cause 100's of dollars worth of engine damage. and if none of that works then take it to your local Honda dealer and have them do a tune up on it.
check the distributor
Honda civic Lx 2000 wont start it was idling really low it just turn off on me now it wont start it cranks over like wants to start but nothing
check ignition
cause there like 20yrs old
if the battery is dead the switch wont unlock or start
Did you chaeck the fuel pump?
It sounds like a dead battery
Maybe the fuel injectors got clogged.
The igniter has gone out. The part cost about $100.
transmission trouble for sure
depends. can you push start it. need more info.
Blown FuseDefective fan motorDefective Thermal RelayFault in the wiring