October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Enrichment System

The enrichment system consists of metering jet and a solenoid-operated enrichment on-off valve. Valve provides additional fuel for main metering system. When additional fuel is required during heavy acceleration, heavy engine loads, cold start or warm-up operation, the ECU energizes the solenoid at pre-set duty cycles.

Fig 1: Feedback Carburetor System Colt is shown; other models are similar.