Distributor Weight Spring Kit. Standard for Harley-Davidson

Standard replacement for original OEM applications.
Replaces 32605-70.
Note: Using springs stronger than stock will give a slower advance curve and can be used to solve knocking (pinging) problems.
Note: 516300 is a standard replacement, 516301 is heavy duty, 516598 is extreme duty.
Combining different spring forces will provide additional tuning options.
Note: Stronger than stock springs may require carburetor adjustment.

Fits: > 70-99 BT (excl. TC); 71-03 XL . With mechanical advanced ignition