If you want a high-power hard-cranking battery for your hawk, and want to put it in the same place, consider the YT12A‑BS
|Battery Family:||Maintenance Free|
|Capacity:||8 Ah||9.5 Ah|
|Dimensions:||6" x 3.4375" x 4.1875"|
|Metric Dimensions:||150 x 87 x 105 mm|
|Weight:||5.4 lbs. / 2.5 kg||6.3 lbs. / 2.8 kg|
|expect to pay:||$65||$90|
These places have these batteries, based on a quick Google search on November 20, 2003. This is not an endorsement of any sort, I know nothing about them, but their prices seem decent.
This place is a chain, but might have a good price:
They have stupid names, but that's because all the good names were taken before the 1980's.
I expect a Google search of some combination of
yuasa, yt12a-bs, ytx9-bs, price, battery
would reveal who has the best prices when you're reading this.
in fact, try it now: