CDI -BGM PRO with fixed timing for IDM-ignition- type Ducati blue Vespa PX, PK, Lambretta - used for Polini IDM, Vespatronic, VesPower, Varitronic, Flytech, Parmakit

BGM PRO CDI for IDM retrofit ignitions

-Original optics combined with an optimized ignition curve for touring engines-

THE PROBLEM OF THE ORIGINAL IDM CDI ON TOURING ENGINES
All IDM based ignitions (Vespatronic, Malossi VesPower, Polini IDM, Varitronic, Pinasco Flytech, Parmakit etc.) use the same CDI. Their ignition curve is designed for high performance engines with a late power input and high revs.
On touring engines, with an early and high torque, this ignition curve is rather counterproductive. It often leads to engine judder in part-load operation due to an ignition timing that is too early for the low engine speed. Due to the large adjustment range (8°) of the original CDI, the ignition timing must be selected early. Otherwise the performance in the upper speed range suffers, because the CDI already decreases the ignition timing strongly.

ADVANTAGES OF THE BGM PRO CDI ON TOURING ENGINES
The BGM PRO CDI has a modified, optimized ignition curve. It offers ideal working conditions to engines that have a similar power/torque curve to an original engine. The adjustment of the ignition timing is significantly lower, the engine runs more quietly and smoothly and also develops more power, especially in the range above the peak power (overrev). As a result you have an engine that is much more touring friendly and usually a bit faster on the road.

• replaces the original IDM CDI

• ignition curve optimized for touring

• no partial jerking

• higher performance

• original optics

• screwable ignition cable

FURTHER ADVANTAGES OF THE BGM PRO CDI
The technology of the BGM PRO CDI is accommodated in the vehicle-specific ignition coil housings of the time of construction. Thus, despite contemporary technology, the beautiful old look is retained.
Compared to an original IDM CDI the ignition cable can be screwed in. Ideal if the CDI is to be positioned differently or simply the ignition cable is to be replaced.

CONCLUSION: Nice addition for converted engines that should be even better.