Service manual

Warmup enrichment
Enrichment of the fuel dose in the function
of coolant temperature is used to
compensate the fact, that in low
temperatures, the fuel doesn't vaporize well.
At the engine’s working temperature
enrichment should be 100% (no
enrichment). In order of additional securing
of the engine from overheating you can
introduce small enrichment of the mixture
above the working temperature (additional
fuel can in many cases help to cool down
the engine).