What's the difference between the GT15 and GGT15
The key difference between the O.S. GT15 and O.S. GGT15 engines lies in their ignition systems and related components:
O.S. GT15:This engine uses a conventional ignition system with a spark plug and requires an external electronic ignition module (CDI).This system offers reliable ignition but adds extra weight and complexity to the installation due to the ignition module and associated wiring.
O.S. GGT15:The GGT15, on the other hand, uses a glow plug for igniting the gasoline mixture, similar to traditional glow engines.This eliminates the need for an external ignition module, resulting in a simpler and lighter system.Using a glow plug also makes starting easier and reduces the number of required components.
Both engines are designed for use with a 50:1 gasoline/oil mixture and are suitable for models in the .60-.91 class. The choice between the two depends on your preference for the ignition system and the associated installation requirements.
