Plugs & Bulbs

[Oddball]

First maintenance post! Go me! Lol.

I have a 2003 GZ 250. My dad, who's worked on bikes for years, and my hubby, who is an Army car/truck/utility vehicle mechanic, can't agree on how many plugs the bike has, lol. I'm trying to find it online, but I'm not having much luck; we were originally going to get a Rebel, when we fell in love with the GZ, so I don't know how much different the years make it. We also need to replace the neutral indicator and left rear turn signal. Is there anything we should know? How do we get into the neutral indicator thing anyway? Lol. Haven't played with it yet, & I'm not a mech of course, lol. I'd like to be somewhat, for my bike, so I can fix it myself. Thanks guys!