发动引擎怠速，如果副水箱水降低，就加水。
Start the engine and allow to run at idle, adding coolant if the level drops.
让引擎怠速跑大约30秒让它慢慢地温俥后才慢慢”吹油”加速。
Let the engine run for about 30 seconds on idle to allow it to warm up and then advance the throttle slowly.
一个完美的调整引擎将有稳定的怠速，收油门转速会上上下下都是不正确的。
A well-adjusted engine will have a stable idle and will not surge up and down after the throttle is closed.
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