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the break-in period, all engine parts have been run-in and other parts
engaged. Then, all parts shall be adjusted, all fasteners be tightened,
contaminated engine oil be replaced and filter element be replaced.
Timely making 600 mi maintenance can guarantee a long engine life
and the best engine performance.
Precaution
：
600 mi maintenance shall be carried out according to the
"Troubleshooting" in the manual. Pay special attention to the
"precaution" and "warning" in these sections.
