From our Tech Vault:

Submitted by Mikemm03:
With props to Fishercat and Dinqua I want to recommend
the Napa 740-1866, Napa part # 12BS, 209 CCA $54.95.

I have this NAPA battery, works great, easy on the wallet.

Steelheart- '03 Speedmaster Black/Yellow The Hayabusa Killa 16" Shorties/140 mains/Airbox drilled Procom CDI "There is no cure for Celibacy. But we can treat the symptoms."