{"id":56339,"date":"2016-07-30T14:09:41","date_gmt":"2016-07-30T05:09:41","guid":{"rendered":"https:\/\/www.decoboco.info\/en\/?p=56339"},"modified":"2026-09-24T13:44:49","modified_gmt":"2026-09-24T04:44:49","slug":"gsxr1100k-oil-cooled-maintenance-yoshimura-st-1-cam","status":"publish","type":"post","link":"https:\/\/www.decoboco.info\/en\/20160730\/everyday-events\/gsxr1100k-oil-cooled-maintenance-yoshimura-st-1-cam","title":{"rendered":"GSX-R1100K Oil-Cooled Maintenance Yoshimura ST-1 Cam"},"content":{"rendered":"<div id=\"decob-2337451295\" class=\"decob- decob-entity-placement\"><a href=\"https:\/\/www.decoboco.info\/advertise\" aria-label=\"ad_sample_1456_180_1\"><img src=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2025\/04\/ad_sample_1456_180_1.png\" alt=\"\"  srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2025\/04\/ad_sample_1456_180_1.png 1456w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2025\/04\/ad_sample_1456_180_1-300x37.png 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2025\/04\/ad_sample_1456_180_1-1024x127.png 1024w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2025\/04\/ad_sample_1456_180_1-768x95.png 768w\" sizes=\"(max-width: 1456px) 100vw, 1456px\" width=\"812\" height=\"100\"   \/><\/a><\/div><p><img decoding=\"async\" class=\"alignnone size-full wp-image-56318\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/DSC_1181_R.jpg\" alt=\"DSC_1181_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1181_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1181_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1181_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nLet&#8217;s install the Yoshimura ST-1 cam along with the oil-cooled maintenance.<\/p>\n<p><!--more--><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56319\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610510_R.jpg\" alt=\"P1610510_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610510_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610510_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610510_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/> <img decoding=\"async\" class=\"alignnone size-full wp-image-56320\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610509_R.jpg\" alt=\"P1610509_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610509_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610509_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610509_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/> <img decoding=\"async\" class=\"alignnone size-full wp-image-56321\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610508_R.jpg\" alt=\"P1610508_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610508_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610508_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610508_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nThe stock cam was in good condition. There&#8217;s a little bit of scuffing, but overall the condition is excellent.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56322\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610504_R.jpg\" alt=\"P1610504_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610504_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610504_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610504_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/> <img decoding=\"async\" class=\"alignnone size-full wp-image-56323\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610505_R.jpg\" alt=\"P1610505_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610505_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610505_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610505_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nWe&#8217;ll replace the front chain slider. It should be flexible, but it was already stiff.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56324\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/DSC_1184_R.jpg\" alt=\"DSC_1184_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1184_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1184_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1184_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/> <img decoding=\"async\" class=\"alignnone size-full wp-image-56325\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/DSC_1182_R.jpg\" alt=\"DSC_1182_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1182_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1182_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1182_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nWe&#8217;ll replace the idler as well. It&#8217;s still usable, but I have a feeling it might be discontinued soon, so we&#8217;re going ahead with the replacement.<\/p>\n<p>Of course, we&#8217;ll replace the rocker arms too.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56326\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/DSC_1188_R.jpg\" alt=\"DSC_1188_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1188_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1188_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/DSC_1188_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nWe thought we could get away without it, but not this time. We&#8217;ll slot the cam sprocket to get closer to Yoshimura&#8217;s specifications.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56327\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610507_R.jpg\" alt=\"P1610507_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610507_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610507_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610507_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nThe cam lobes have sharp edges, so we&#8217;ll deburr them. The Yoshimura cam has additional oil passages on the lobes.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56328\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610516_R.jpg\" alt=\"P1610516_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610516_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610516_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610516_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/> <img decoding=\"async\" class=\"alignnone size-full wp-image-56329\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610519_R.jpg\" alt=\"P1610519_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610519_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610519_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610519_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nWe&#8217;ll also polish the breather cover.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56330\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610578_R.jpg\" alt=\"P1610578_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610578_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610578_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610578_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/> <img decoding=\"async\" class=\"alignnone size-full wp-image-56331\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610579_R.jpg\" alt=\"P1610579_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610579_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610579_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610579_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nOn to the oil-cooled maintenance. Generator damper replacement. The condition was appropriate for the model year.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56332\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610580_R.jpg\" alt=\"P1610580_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610580_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610580_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610580_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nThe engine damper is slightly worn. It wasn&#8217;t too bad.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56333\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610581_R.jpg\" alt=\"P1610581_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610581_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610581_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610581_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/> <img decoding=\"async\" class=\"alignnone size-full wp-image-56334\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610582_R.jpg\" alt=\"P1610582_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610582_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610582_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610582_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nThe case-side wear is moderate\u2014good news. By offsetting the lobe position, the case will last longer. And if we seal it with grease during assembly, vibration-induced case wear will be reduced.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56335\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610587_R.jpg\" alt=\"P1610587_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610587_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610587_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610587_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nNext, we&#8217;ll synchronize the carburetors.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56336\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610584_R.jpg\" alt=\"P1610584_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610584_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610584_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610584_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nWe&#8217;ll replace the grips with our favorite Kawasaki OEM grips. Since they come with sleeves, it would be wasteful to throw them away, so let&#8217;s use them.<br \/>\nIf you&#8217;re adapting the throttle, you need to be careful.<br \/>\n\u2022 Check the winding diameter<br \/>\n\u2022 Verify there&#8217;s enough slack in the throttle cable<br \/>\n\u2022 Confirm the throttle-off stopper makes solid contact.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-56337\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610585_R.jpg\" alt=\"P1610585_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610585_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610585_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610585_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/> <img decoding=\"async\" class=\"alignnone size-full wp-image-56338\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2016\/07\/P1610586_R.jpg\" alt=\"P1610586_R\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610586_R.jpg 800w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610586_R-300x200.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2016\/07\/P1610586_R-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><br \/>\nIt ends up being a bit of a high-throttle setup. Surprisingly, this adaptation turned out pretty nice.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Let&#8217;s install the Yoshimura ST-1 cam along with the oil-cooled maintenance.<\/p>\n","protected":false},"author":2,"featured_media":56318,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pochipp_cv_data":"","swell_btn_cv_data":"","footnotes":""},"categories":[1924],"tags":[91,1919],"class_list":["post-56339","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-everyday-events","tag-gv73a","tag-oil-cooled-maintenance"],"_links":{"self":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/56339","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/comments?post=56339"}],"version-history":[{"count":0,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/56339\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media\/56318"}],"wp:attachment":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media?parent=56339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/categories?post=56339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/tags?post=56339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}