We have constructed an ultrafast laser system that generates both a tunable deep UV pulse and a 158 nm vacuum UV pulse, and performed photoelectron imaging of pyrazine in a supersonic molecular beam. The time-resolution was estimated to be 0.3 ps from a Xe photoionization cross-correlation measurement. The picosecond decay time of the S-1(n,pi*) state populated by 251 mu excitation was found to be shorter than that previously measured using 264/266 nm excitation. The 3s and 3p Rydberg states excited using the 158 nm pulse were also observed.