Join Date: Mar 2007
Location: Saint Louis, MO, USA
On my 1996 Supersport the battery cables were badly undersized. I went from a stock #8 cable to a #4 cable and it starts NOW, when I press the starter button.
Think of cable size as the equivalent water hose size. If you have a big diameter hose, more water is going to flow through the hose than a small diameter hose. Current is the same. Small diameter wire cannot flow as much current as larger diameter wire. Even if you have a big battery, it will not improve the cranking ability, due to small wires restricting the flow of current. The diameter of the wires determine the flow of current. Increase the diameter of the battery cables, grounds included, to get an increase in starting capability.
Make sure your ground connections are clean and free from any corrosion, use star washers to get conductive connections.
1996 SS/SP B52 40k miles
MBP collets / 748 front rotors / 4.5" rear wheel / Sharkskins / Nichols frame bolts