{"id":2826,"date":"2026-06-25T19:35:09","date_gmt":"2026-06-25T10:35:09","guid":{"rendered":"https:\/\/www.decoboco.info\/en\/?p=2826"},"modified":"2026-09-24T12:54:45","modified_gmt":"2026-09-24T03:54:45","slug":"ohno-speed-oil-cooler-summer-heat-protection-katana","status":"publish","type":"post","link":"https:\/\/www.decoboco.info\/en\/20260625\/everyday-events\/ohno-speed-oil-cooler-summer-heat-protection-katana","title":{"rendered":"Conquering the air-cooled summer! The “Ohno Speed” oil cooler\u2014the savior for the GSX1100S Katana with perfect heat management"},"content":{"rendered":"
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A gem for the Anniversary GSX1100S! Ohno Speed Oil Cooler 9-inch 13-stage<\/a><\/strong>
It installs just like stock, so it’s super easy (*\u00b4\u03c9\uff40*)<\/p>\n\n\n\n

With this, I can make it through this summer! <\/p>\n\n\n\n

Today’s Custom & Heat Management Log<\/strong><\/span><\/div>
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Target:<\/strong> Air-cooled large-displacement bikes like the GSX1100S (Katana)<\/strong><\/p>\n\n\n\n

Parts Installed:<\/strong> Ohno Speed (OHNO SPEED) Oil Cooler Kit<\/strong><\/p>\n\n\n\n

Purpose:<\/strong> “Oil temperature management and improved cooling capacity” to protect heat-sensitive air-cooled engines from the harsh Japanese summer (extreme heat) looming ahead.<\/p>\n\n\n\n

Mechanic’s Perspective:<\/strong> Because it’s made by a legendary shop that knows the Katana inside and out, you get perfect fitment and overwhelming cooling efficiency. Controlling oil temperature rise (heat fade) is the ultimate preventative maintenance to extend engine life! <\/p>\n<\/div><\/div>\n\n\n\n

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Sharing everyday convenience items, relocation, delicious food, life philosophy<\/strong>and more.<\/span>
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\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tYahoo!\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\"\"\n\t\t\t\t\t\u30dd\u30c1\u30c3\u30d7<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t<\/div>\n\n\n\n
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\n\t\t\t\t\t\n\t\t\t\t\t\tOil cooler clamp Flobal (Flobal) JCS stainless P clip 22100138 JCS-SP16\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\tYahoo!\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t
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Ohno Speed Oil Cooler 9-inch 13-stage<\/strong><\/h2>\n\n\n\n
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For the GSX1100S, check whether the filter cover is present or absent before ordering.<\/p>\n\n\n\n

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So there are lip-type gaskets in this large size.
I’ve learned something good here… <\/p>\n\n\n\n

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Keep the hose secure! Gotta fix it so it doesn’t vibrate<\/h2>\n\n\n\n
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Yes! I found it.P-Clip (All Stainless Steel) JCS-SP16<\/a><\/strong><\/p>\n\n\n\n

I decided to use this to secure the oil hose.<\/p>\n\n\n\n

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If you use cable ties for fixing, they degrade and break, which could cause contact with the exhaust pipe\u2014not ideal. Using permanent materials and parts gives you long-term peace of mind.
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ACTIVE Core Guard “Armies”<\/h2>\n\n\n\n
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When I do a full brake, it looks like it’s definitely going to make contact… Nowadays, edging-style core guards are mainstream, but
“I just want something simpler!”<\/strong>
So I searched and found that ACTIVE actually sells a dedicated one (*\u00b4\u03c9\uff40*)<\/p>\n\n\n\n

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Installed it like this (*\u00b4\u03c9\uff40*)<\/a><\/strong>
\u2191Installation details here.<\/p>\n\n\n\n

I don’t have an oil temperature gauge so I can’t see the numbers, but it doesn’t feel hot.
Combined with the carb overhaul“extremely silky feel”<\/span><\/strong>has been achieved.
This should be fun to ride.

For a simple and efficient oil cooler on the GSX1100S, I’d definitely recommend Ohno Speed.<\/p>\n\n\n\t\t

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Beating the Summer Heat: Installing the “Ohno Speed” Oil Cooler!<\/span><\/div>
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Vehicle:<\/strong> Suzuki Katana (Air-Cooled). Topic:<\/strong> Upgrading the cooling system to protect vintage air-cooled engines during harsh Japanese summers. Details:<\/strong> As the intense summer heat approaches, managing engine oil temperature becomes a matter of life and death for vintage air-cooled motorcycles like the GSX1100S Katana. Extreme heat degrades oil quickly and causes severe engine fatigue (heat fade). To conquer the summer, we installed a premium oil cooler kit from Ohno Speed<\/strong>, a legendary Katana specialist brand in Japan. Known for their flawless fitment and superior cooling efficiency, this kit drops oil temperatures significantly while looking incredibly aggressive on the front end. Verdict:<\/strong> Keeping oil temperatures stable isn’t just about performance; it’s the ultimate preventative maintenance to extend the life of classic engine internals. Now this machine is fully prepped to handle summer riding with absolute peace of mind!<\/p>\n<\/div><\/div>\n\n\n\n

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