The nozzle and spark electrodes should be checked and cleaned yearly, and changed every 2-3 years. If its been that long since she had someone out, its time.
You really dont want a late ignition due to excessive oil in the chamber, she`ll shit herself lol..
Call a tech asap, or she`ll regret it.
-j -- if it aint broke, tweak it!! currently on FiOS (kick aZZ!)