发动机怠速不良的原因和处理方法

天涯明月

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;"><font color="#f70909" size="5"><strong>发动机怠速不良的原因和处理方法</strong></font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;"></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">所谓<strong><font color="#0000ff">发动机怠速</font></strong>就是在节气阀近乎全关时，发动机在档情况下的最低转速，一般在每分钟</span><span lang="EN-US"><font face="Times New Roman">2000</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">转以下。发动机怠速的好坏会直接影响发动机的油耗、换挡、寿命等，是发动机的重要性能指标。</span><font face="Times New Roman"><br/>&nbsp;&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">摩托车发动机怠速不良主要表现有发动机无怠速、怠速过高、怠速不稳等三种现象。</span><font face="Times New Roman"><br/>&nbsp;&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><strong><font color="#ff0000"><span lang="EN-US"><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">、无怠速</span></font></strong></font><span lang="EN-US"><br/></span><font size="3"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">当发动机起动后，油门转把不能完全放手，否则就会熄火，这种现象叫发动机怠速。</span><font face="Times New Roman"><br/><strong><font color="#3809f7">&nbsp;&nbsp;&nbsp;</font></strong></font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;"><strong><font color="#3809f7">产生原因</font></strong>：化油器故障，或化器至气缸之间有漏气，气缸压力过低等。</span><font face="Times New Roman"><br/>&nbsp;&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;"><strong><font color="#0909f7">处理方法</font></strong>：按先易后难、先简后繁、由浅入深的原则逐步检查，先调整节气门调整节气门调整螺钉和怠速调整螺钉，如调不出怠速，则说明化油器有故障，可拆下化油器，用</span><chmetcnv unitname="mm" sourcevalue=".2" hasspace="False" negative="False" numbertype="1" tcsc="0" wst="on"></chmetcnv><chmetcnv></chmetcnv><span lang="EN-US"><font face="Times New Roman">0.2mm</font></span><chmetcnv></chmetcnv><chmetcnv></chmetcnv><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">细丝通过各孔，并用高压枪吹各通道及量孔；如仍无怠速，应检查进气歧管螺栓是否紧固，如松动则应紧固；如还无怠速，说明化油器浮子室油面太低，应进行调整。如以上方法不能解决，则应检查气缸压力是否合适（大于</span><span lang="EN-US"><font face="Times New Roman">600</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">千帕），并依次检查各密封部位，如气门、活塞等，并进行排除。</span><font face="Times New Roman"><br/>&nbsp;&nbsp;&nbsp;</font></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><font size="3"><strong><font color="#ff0000"><span lang="E

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