Msd 7al 3 Ignition Wiring Diagram. That is why we have assembled the msd ignition wiring diagrams and tech notes. The msd can be used with 16 volt batteries and can withstand a momentary 24 volts in case of jump starts.
All 3 wire mallory distributors connect this way. The ignitions will deliver full voltage with a supply of 10 18 volts and will operate with a supply voltage as low as five volts. Install the vibration mounts to the 7al 3 then mount the ignition using the supplied lock washers and nuts.
There are several color coded figure 2 primary wiring to an msd boost timing master and a magnetic pickup.
Use the ignition as a template and mark the location of the mounting holes. With start retard 3 rev limits and a 4 stage retard the 7al 3 has all the features you need plus a rpm activated switch. Msd 7al 3 ignition control. There are several color coded wires.