CDI Unit W/ Optimized Ignition Curve For Yamaha 1979-1981 SR500 1-025
-This unit is tuned to optimize the SR's engine over the factory unit, it allows
for a corrected timing curve, easy starting and certainly improved throttle response.
Ref. OBSOLETE Part Number: 3H1-85540-51-00
w/ Rotors marked 032000-077
