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Old 09-29-2002, 09:21 AM
Hurshi Hurshi is offline
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Join Date: Aug 2002
Location: Central Asia
Posts: 104
found the answer

That second adjuster is called a resistance trimming plug. It is used for adjusting the idle speed. Position 1 is for setting it to 600 rpm, position 7 is for 740 rpm. The rest of the position are in the following link.
How to adjust idle speed on OM603?
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