Honda EB12D Owner's Manual page 36

6.
After the engine starts, let the engine switch return to the
ON
ON position.
7. Warm the engine for 2 or 3 minutes before applying a load to the
generator. Blue smoke might be emitted from the exhaust during the
warm-up. This is a normal occurrence.
rii%iEq pro
per engine warm-up will stabilize the engine speed. It also is
needed to warm-up the engine oil and properly lubricate internal engine
parts.
34