On older Vespas the stator plates tend to be faulty. Small frame motor stator plates are no longer produced anywhere. This is why we decided to do something to resolve this situation.
The SIP stator plates are assembled by CEAB, an italian OEM manufacturer and suppliere for coils and condensators. The ignition, light and charging coils used are 100% Italian produced. Also the reinforced condensers and the contact breaker. This extensive attention to detail eliminates bad solder points, intermittent function of the coils or broken wiring on the stators. All of the coils included in this range are thoroughly checked for functionality following every stage of their production.
We have had new castings made to produce the aluminium base plate of the stators.
The SIP base plates are available in different versions to cover all small frame motors with contact breaker stator plates.
The 2 coil stator plates with an internal ignition coil have a 6V-15W lighting coil. The statorplate is exact like the original and should be used only for original restorations. No interference suppressed sparks, spark plug resitor caps and cables are allowed.
If you possess a tuned smallframe motor that still includes the original ignition/stator plate set up with an internal coil system we strongly recommend an upgrade to a type with external coils art. no. 15077400. The higher compression rate of tuned motors requires a stronger current to be supplied to the spark plug and this cannot be guaranteed with the use of internal coils.
The 2 coil stator plates version with an external ignition coil has 6V-15W or 6V-25W for models with a main beamed headlight.
If you possess a tuned smallframe motor that still includes the original ignition/stator plate set up with an internal coil system we strongly recommend an upgrade to a type with external coils. The higher compression rate of tuned motors requires a stronger current to be supplied to the spark plug and this cannot be guaranteed with the use of internal coils. On engines that have internal rotor set up the use of this base plate can lead to short circuiting and ignition coil failure. Models with a brake light require a 6V 15W bulb
The 3 coil stator plate has along with the charging coil, lighting coils with 6V-10W for the side lights and brake lights and another with 6V-25W for the lights and horn. The version that is compatible with bar-end indicators includes a dedicated coil to take care of the indicator system (6V/18W) and the brake light (6V/10W) is connected to the loading coil that serves the external ignition coil. The 25W lighting coil supplies the headlight, horn and the rear light with power. This small range of stator plates covers all 2&3 coil small frame motors, irrelevant of the confusion over frame numbers and wiring loom anomalies in the many countries where they were sold. We have plates for models with and without handlebar indicators.
Conclusion: At last an alternative is available to a conversion. An Italian, Austrian and German joint venture.
SIP-TIP: When ordering the stator plate with an external ignition coil do not forget to order one as well. A flywheel remover, piston stopper and degree disc make ignition work a lot easier. Check your wiring loom for defects and repair as necessary.
Installation advice:
- The contacts surface of the the breaker can oxidize. If necessary, it must be cleaned carefully before mounting with e.g. using a cardboard strip, which is usually included.
- New breakers should be readjusted after 50-80 km. Otherwise misfires can occur.
With 6V stator plates only 6V and not 12V bulbs can be used.
If the brake light is defective, there is no ignition spark with 2-coil ignition stator plates
