{"id":83145,"date":"2007-11-07T19:11:50","date_gmt":"2007-11-07T10:11:50","guid":{"rendered":"https:\/\/www.decoboco.info\/en\/?p=83145"},"modified":"2026-09-24T13:41:02","modified_gmt":"2026-09-24T04:41:02","slug":"yoshimura-yoshimura-yoshimura-chapter","status":"publish","type":"post","link":"https:\/\/www.decoboco.info\/en\/20071107\/everyday-events\/yoshimura-yoshimura-yoshimura-chapter","title":{"rendered":"Yoshimura! Yoshimura\u2605Yoshimura\u266a"},"content":{"rendered":"
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I never thought so many oil-cooled engine users would show up.
\nIf I’d known, I should have hoarded Yoshimura engine covers and bonnets\u2605
\nAbout ten years ago, they weren’t that rare\u2014you’d see them pretty often in sales magazines (mufflers, that is).
\n\u2605
\nBack then I was crazy about 70s and 80s 1000cc superbikes and had no interest in them at all.
\nThinking back to those days, I’m moving forward with the E4.
\nThe direction is completely different, so I need to cultivate the right sensibility.
\nWith the GSF, you can do anything and there’s no goal or end\u2014right now it’s just “if it’s black and small, it’s good”\u2014but
\nfor building a bike from this era, the goal is superbike style from back then\u2014
\nbut I’ve decided a full-on replica is out!
\nBecause no matter how many original parts you bolt on, a replica will never be the real thing. (Sad, but true.)
\nI use them as reference, but I won’t make it the same\u2014that’s my philosophy.
\nSo it’s squid, so to speak. Squid? That means it’s not cluttered\u2014when you look closely, things are different.
\nFor example, up close you’ll spot titanium bolts, screws with minus-head slots, holes drilled in places.
\nI want each part to carry deep meaning.
\nIt’s almost a sickness! Since I start by collecting parts, it’ll probably take about five years\u2026
\nBy now you probably can’t find them anymore. I hope it becomes the last superbike replica.
\nI’ll keep pushing hard through the end of the year!
\nBy the way, here are the details on this GSX-R750 E4\u2014
\n[Engine] US Yoshimura dead-stock spare engine
\n(Only the head cover has been removed, but the cam is probably ST2 or better?)
\n[Carburetor] Yoshimura Mikuni TMR-MJN
\n[Muffler] Bonnet pipe
\n[Wheels] RGB500 Dymag 2.50-18 and market Dymag 3.50-18
\n[Brakes] Front caliper AP CP3485-8so, rear caliper RGB500
\nFront disc RGB500 late 310\u03c6 rotor (drilled, not solid) and rear disc RGB500 220\u03c6 vented
\n[Master] Brembo machined 19\u03c6\u00d718
\n[Fork] Yoshimura Kayaba 40\u03c6
\n[Stem & Under] For GS1000R #(the under might be different? Yeah, it’s different! Some kind of machined piece)
\n[Front fender] Yoshimura carbon from back in the day
\n[Tachometer] Suzuki factory tachometer
\n[Throttle] Mag XR (factory use)
\nLooking at it this way, there’s still room for improvement! Gani, keep striving every day!
\nPokidam<\/p>\n","protected":false},"excerpt":{"rendered":"

       I never thought so many oil-cooled engine users would show up. If I’d known, I should have hoarded Yoshimura engine covers and bonnets\u2605 About ten years ago, they weren’t that rare\u2014you’d see them pretty often in sales magazines (mufflers, that is). \u2605 Back then I was crazy about 70s and 80s 1000cc superbikes and had no interest in them at all. Thinking back to those days, I’m moving forward with the E4. The direction is completely different, so I need to cultivate the right sensibility. With the GSF, you can do anything and there’s no goal or end\u2014right now it’s just “if it’s black and small, it’s […]<\/p>\n","protected":false},"author":2,"featured_media":83144,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pochipp_cv_data":"","swell_btn_cv_data":"","footnotes":""},"categories":[1924],"tags":[65,55,128],"class_list":["post-83145","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-everyday-events","tag-gsx","tag-old-blog","tag-tmr"],"_links":{"self":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/83145","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=83145"}],"version-history":[{"count":0,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/83145\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media\/83144"}],"wp:attachment":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media?parent=83145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/categories?post=83145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/tags?post=83145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}