{"id":46905,"date":"2018-09-16T13:12:59","date_gmt":"2018-09-16T04:12:59","guid":{"rendered":"https:\/\/www.decoboco.info\/en\/?p=46905"},"modified":"2026-09-24T13:45:04","modified_gmt":"2026-09-24T04:45:04","slug":"rvf400-inspection-carburettor-maintenance-oh-did-chain-sprocket-2","status":"publish","type":"post","link":"https:\/\/www.decoboco.info\/en\/20180916\/everyday-events\/rvf400-inspection-carburettor-maintenance-oh-did-chain-sprocket-2","title":{"rendered":"\u2461RVF400 Inspection, Carburettor Maintenance OH, DID Chain &#038; Sprocket Replacement"},"content":{"rendered":"<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46884\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/DSC_8104.jpg\" alt=\"\" width=\"1280\" height=\"854\"><br \/>\nHmm, the framework looks good even stripped down. The 35 is nice&#8230; I really feel it.<\/p>\n<p><!--more--><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46885\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710750.jpg\" alt=\"\" width=\"1280\" height=\"855\"> <img decoding=\"async\" class=\"alignnone size-full wp-image-46886\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710751.jpg\" alt=\"\" width=\"1280\" height=\"855\"><br \/>\nIt&#8217;s all plastic by now. It&#8217;s a pain to remove, and the carburettor won&#8217;t come off either&#8230;<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46887\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710747.jpg\" alt=\"\" width=\"1280\" height=\"855\"><br \/>\nGood thing new parts are available. Rubber is really something you can&#8217;t do anything about.<\/p>\n<p>Looking closely at it, I&#8217;d say the shorter the intake manifold body, the more durable it is.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46888\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/DSC_8095.jpg\" alt=\"\" width=\"1280\" height=\"854\"><br \/>\nSo it&#8217;s been what, over twenty years? There&#8217;s corrosion showing up in the hard-to-reach areas under the tank.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46889\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710794.jpg\" alt=\"\" width=\"1280\" height=\"855\"> <img decoding=\"async\" class=\"alignnone size-full wp-image-46890\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710793.jpg\" alt=\"\" width=\"1280\" height=\"855\"> <img decoding=\"async\" class=\"alignnone size-full wp-image-46891\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710792.jpg\" alt=\"\" width=\"1280\" height=\"855\"> <img decoding=\"async\" class=\"alignnone size-full wp-image-46892\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710791.jpg\" alt=\"\" width=\"1280\" height=\"855\"><br \/>\nYou can tell it&#8217;s been taken apart before. It&#8217;s held together with gasoline-resistant liquid sealant, which is a pain to peel off.<\/p>\n<p>Good thing there&#8217;s no rust.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46893\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710795.jpg\" alt=\"\" width=\"1280\" height=\"855\"><br \/>\nAs expected, the starter valve is discontinued. I&#8217;m not too familiar with Keihin vacuum carburetors, so I couldn&#8217;t investigate it this time.<\/p>\n<p>This level of wear is fine.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46894\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710803.jpg\" alt=\"\" width=\"1280\" height=\"855\"><br \/>\nThe slide valve wear is gradual too. This probably won&#8217;t be available either, but&#8230; (unconfirmed).<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46895\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710804.jpg\" alt=\"\" width=\"1280\" height=\"855\"><br \/>\nGood thing the diaphragm isn&#8217;t damaged.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46896\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/DSC_8100.jpg\" alt=\"\" width=\"1280\" height=\"854\"><br \/>\nPolishing wasn&#8217;t requested this time, but I handled it with light cleaning.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46897\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710809.jpg\" alt=\"\" width=\"1280\" height=\"855\"><br \/>\nThe actual fuel level is hard to see, so I checked it by float level.<br \/>\nThe SJ needle broke, so I replaced all of them.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46898\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710810.jpg\" alt=\"\" width=\"1280\" height=\"855\"><br \/>\nThe butterfly won&#8217;t close even though I didn&#8217;t take it apart.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46899\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710811.jpg\" alt=\"\" width=\"1280\" height=\"855\"><br \/>\nThe rod connecting cylinders 2 &#038; 4 to 1 &#038; 3 was the culprit. Whether things got weird because I took everything apart is unclear, but I fixed it on my end.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46900\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/DSC_8102.jpg\" alt=\"\" width=\"1280\" height=\"854\"><br \/>\nSet the sync in this state \u2192 finish \u2192 attach the cable \u2192 get pulled slightly \u2192 sync goes out.<br \/>\nAt first I thought, hmm, is the cable messed up? I got stuck on that for a while.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46901\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710814.jpg\" alt=\"\" width=\"1280\" height=\"855\"><br \/>\nNow I can relax. It revs hard and the idle is super stable.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46902\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710825.jpg\" alt=\"\" width=\"1280\" height=\"855\"> <img decoding=\"async\" class=\"alignnone size-full wp-image-46903\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/P1710826.jpg\" alt=\"\" width=\"1280\" height=\"855\"><br \/>\nWater gets in from the front cover mounting area and causes rust. That would be a problem if a hole opened up. I applied rust preventative to handle it.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-46904\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2018\/09\/DSC_8112.jpg\" alt=\"\" width=\"1280\" height=\"854\"><br \/>\nDuring inspection, the headlight brightness wouldn&#8217;t come up\u2014a real headache.<\/p>\n<p>Multi-reflectors don&#8217;t usually cause problems, but circumstances are always changing.<\/p>\n<p>\u2022 One side: 60W \u2717<br \/>\n\u2022 One side: Direct battery + 60W \u2717<br \/>\n\u2022 One side: Direct battery + 60W + internal reflector removed \u2717<br \/>\nI&#8217;m glad we had a headlight tester. You can&#8217;t handle something like this on the road.<\/p>\n<p>With a prayer in my heart, I stuck a rag inside the headlight and polished it, and&#8230;<br \/>\nIt went up to 18,000 candlepower.<\/p>\n<p>I realized you can&#8217;t underestimate cleaning. Done!<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hmm, the framework looks good even stripped down. The 35 is nice&#8230; I really feel it.<\/p>\n","protected":false},"author":2,"featured_media":46884,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pochipp_cv_data":"","swell_btn_cv_data":"","footnotes":""},"categories":[1924],"tags":[136,148,122,1928],"class_list":["post-46905","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-everyday-events","tag-carb-maintenance","tag-did","tag-vehicle-inspection","tag-vf"],"_links":{"self":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/46905","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=46905"}],"version-history":[{"count":0,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/46905\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media\/46884"}],"wp:attachment":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media?parent=46905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/categories?post=46905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/tags?post=46905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}