With the key in accessory

[David-1964]

Is it bad to set for a long time with the key in accessory position with the engine off, for instance to play the radio.

 

[pappyo]

How long is " long-time "?
Simular to leaving Lights On -- Will drain the Battery.
Long term non use with Key Out can drain battery ( Electronics have s slight draw )

 

[TripleB]

From what I've read, your hour meter will run also.

 

[David-1964]

Beyond draining the battery, will it hurt the fuel pump, ignition system or other systems.

 

[Hondasxs]

Beyond draining the battery, will it hurt the fuel pump, ignition system or other systems.

No... Shouldn't,
The fuel pump primes then shut off.

 

[toddvdh]

Portable radios that are really loud are less than $100. Then you don’t have to worry about the machine.

 

[sporttrac4x4]

Just charge your battery no harm.