IGNITION POINTS TIMING 50 SPECIAL - ME VScond 024 ME VSbob 025 - ME VSbc 02425
(instructions to install condenser and light coil with 2 outputs: headlamps + condenser power supply)
The modification you are about to do requires some preliminary checks.
All the electrical cables of the stator must be in perfect condition. If necessary replace them; it is a simple and necessary operation.
The contacts must be new and with double spring.
Quality external HT coil. The LT/HT cable must be new

REPLACEMENT of DRT 024 CONDENSER only
Remove the original condenser.
Loosen the screw and remove the felt pad that lubricates the flywheel.
Install the new condenser in the hole, taking care that there is no play; position the tab so that it will remain locked under the arm of the felt pad that will be refitted well lubricated. Reconnect the wires as they were.
If you are not installing the double wound coil, pass directly to the timing instructions.

CONNECTIONS of DRT CONDENSER code 024+ DRT DOUBLE-WOUND COIL code 025
Replace the lamp coil and install in its place the DRT lamp coil+condenser power supply.
Check for interference between the new coil and the flywheel magneto.
Connect the original power supply coil output to the red wire of DRT condenser code 025.
Connect the yellow condenser wire to the points.
Connect the red wire from the points to the junction box with the corresponding colour wire.
Connect DRT coil headlamps output with the green wire.
Connect the YELLOW wire leaving the DRT coil to the blue wire of the power supply coil, which you will have disconnected from the black wire, taking care to insulate the new joint (yellow+blue).
Do not refit the rubber washer of the flywheel,

TIMING
None of the original washers under the stator screws must be removed.
Advance the stator to maximum by turning it counter-clockwise on the slots, then fix with the screws.
Fix the flywheel, gap between contacts around 0.30-0.40 mm; proceed with road test.
If everything is in order you will find a clear improvement in acceleration, a more decisive shift and the classic bottom gear wall will disappear.
The temperature of the cylinder unit will be lower. With high power outputs small advance and retard variations are possible (starting from the modified position) for best adjustment of the torque moment.

CAUTION: in engines with undersized gear ratios, position the stator at maximum retard, the acceleration phase is carried out by the short gear ratio, the condenser characteristic will be used to obtain a good extension.
The best position in these cases will be obtained by trial and error starting from maximum stator retard and advancing 1 mm at a time until finding the best performance point.