Wiring diagram Aermacchi Harley-Davidson M-65 Leggero (1972)

Nederlandse versie

The electrical system of the Aermacchi Harley-Davidson M-65 Leggero from 1972, drawn circuit by circuit. Each wire is labelled with its colour.

Always check a wire with a multimeter before you connect it, and disconnect the battery first.

Circuit 1Power from the batteryThe positive goes with the blue wire to the rectifier and through the fuse with the violet wire to terminal 1 of the ignition switch. The negative goes to earth with the white wire.
bluepositiveviolet1Ignition switchterminal 1Rectifierwith coil, diode and fusewhitenegEarthframe or engineBattery
Circuit 2ChargingThe green wire from the generator charges the battery through the rectifier. With the lights on, the switch connects terminals 8 and 9.
greengreenbluepositiveBatterywhite8Ignition switchterminal 8green9Ignition switchterminal 9RectifierTerminal blockGFlywheel generator
Circuit 3IgnitionThe black wire goes through terminals 6 and 7 of the switch to the coil. The green wire earths the coil. The blue wire goes to the handlebar switch.
blackblack6black/blue7blackHT leadearthSpark pluggreenEarthframe or engineblueHandlebar switchterminal near the earthIgnition coilIgnition switchterminal 6 and 7 closed with ignition onTerminal blockGFlywheel generator
Circuit 4LightingThe red wire goes to terminal 4 of the switch. With the lights on, the current goes through terminal 5 and the brown wire to the handlebar switch.
redred4brown5blackredearthWarning lamphigh beamHeadlamphigh beamwhiteHeadlamplow beamHandlebar switchIgnition switchterminal 4 and 5 closed with lights onTerminal blockGFlywheel generator
Circuit 5Tail light and clocksTerminal 3 feeds the tail light with the yellow wire.
yellow3earthTail lightIgnition switchterminal 3
Circuit 6Stop lightTerminal 2 feeds both stop light switches with the green-black wire. The green wire goes to the stop light.
green/black2greenearthStop lightStop light switchfrontgreen/black2greenearthStop lightStop light switchrearIgnition switchterminal 2
Circuit 7HornTerminal 4 feeds the horn with the red wire. The grey wire goes to the button in the handlebar switch.
red4greyHorn buttonin the handlebar switchHornIgnition switchterminal 4
Read this firstWatch out forUncertain colours and terminals
  • Switch table in the book: ignition 1-2 and 6-7, ignition and lights 1-2-3, 4-5, 6-7 and 8-9.
  • The inside of the handlebar switch is not shown in this diagram. Check with a meter which terminals are connected in each position.
  • The book does not say which wire is high and which is low beam. Where this page does say so, it was worked out from the warning lamp. Check it at the headlamp.
  • The book does not say how the horn button makes its earth. Check with a meter.
  • This diagram has no speedometer lamp.
  • The green-black and the green wire to the stop light switches run through connectors.

Our own drawings per circuit. The connections are based on the workshop manual for this model. Not an official publication of the manufacturer.

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