1 Component BY2 Classic BY2 classic series engines Helm CH18000 Series Side Mount Control CH18000 Series Top Mount Control CH18000 Series Dual Top Mount Control OR OR Tachometer with Digital Display CP19400: Key Switch Panel Early BY Classic Units were supplied with individual parts for the Key Switch Panel: Kit Part Number CP19400K, Yanmar Part Number 163510-91020 Cut-off Switch/with Lanyard attached Warning Light Ignition Switch Audible Alarm © 2011 Yanmar Marine International • Rev. 2.0 1:2 Yanmar Electronic Control Systems Technical Manual