{"id":25029,"date":"2022-10-06T19:34:52","date_gmt":"2022-10-06T10:34:52","guid":{"rendered":"https:\/\/www.decoboco.info\/en\/?p=25029"},"modified":"2026-09-24T13:45:49","modified_gmt":"2026-09-24T04:45:49","slug":"ducati-st3-handlebar-switch-mosfet-regulator-replacement","status":"publish","type":"post","link":"https:\/\/www.decoboco.info\/en\/20221006\/everyday-events\/ducati-st3-handlebar-switch-mosfet-regulator-replacement","title":{"rendered":"DUCATI ST3 Handlebar Switch\u30fbMOSFET Regulator Replacement and Daytona Voltmeter Installation"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

Well… time has passed…
It’s been almost a month since we took it in. <\/p>\n\n\n\n

I’m usually still on the faster side? Maybe.
Let’s proceed at full speed (‘\u03c9’)\u30ce <\/p>\n\n\n\n\n\n\n\n

If we do it, it’s quick! But… that’s not all there is to it. <\/h2>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Our shop can only print up to A4 size.

It’s not invisible, but it’s easy to make mistakes (\uff1b\u2200\uff1b)
Hmm… <\/p>\n\n\n\n

In the end, we decided to view it on the monitor. <\/p>\n\n\n\n

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Struggling with color differentiation…
The other side’s colors are completely different. Completely. <\/p>\n\n\n\n

Black to orange or something is just impossible… It’s super hard to understand.
Basically, it’s easy to make mistakes. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Struggling with color differentiation. <\/p>\n\n\n\n

Ducati: B=Blue, BK=Black
Most Japanese bikes: B=Black, BL=Blue <\/p>\n\n\n\n

When I first saw the actual part, I definitely went “( ,,`\uff65\u03c9\uff65\u00b4)\uff9d\uff9d\uff9d?”
And the wiring diagram colors don’t match the actual part… troubled by the problem again…

My brain is starting to boil. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

There’s only one thing to do.

Separate the colors as much as possible and make comparisons easy. I think it’s nothing more and nothing less than that.
Super tedious.
You need to be careful whether this color is on the switch side or the harness side. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The definitive version of wiring modification? Procky 15 colors <\/a><\/h2>\n\n\n\n

With this, you can cover most cases (*\u00b4\u0437`)
By the way, you can buy them one at a time, so future replacements are easy too. <\/p>\n\n\n\n

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Headlight ON\/OFF (won’t pass inspection though) and the hazard moves to the left. <\/p>\n\n\n\n

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We modified it by replacing and extending.
Turning off the headlight all the way to the tail would be a hassle, so we made it possible to turn the headlight ON\/OFF.
We also set it up so it can easily be made constant by opening and closing the headlight relay. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Yeah, don’t stick it on anymore… seriously.
It’s easy and nice… <\/p>\n\n\n\n

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Like this, we installed the Daytona masterpiece? Aquaprova (voltmeter only). <\/a><\/p>\n\n\n\n

We laid out the wiring and that’s complete. <\/p>\n\n\n\n

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The regulator is being cooled in the mouth.
That said, it’s quite an intense installation. <\/p>\n\n\n\n

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I hope it fits as is because of the size.
I really hope it does (\u00b4-`).\uff61oO <\/p>\n\n\n\n

We’ve crossed the mountain. <\/p>\n","protected":false},"excerpt":{"rendered":"

Well… time has passed… It’s been almost a month since we took it in. I’m usually still on the faster side? Maybe. Let’s proceed at full speed (‘\u03c9’)\u30ce<\/p>\n","protected":false},"author":2,"featured_media":25010,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pochipp_cv_data":"","swell_btn_cv_data":"","footnotes":""},"categories":[1924],"tags":[92,502,501,295],"class_list":["post-25029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-everyday-events","tag-ducati","tag-electrical-components","tag-mosfet","tag-st3"],"_links":{"self":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/25029","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=25029"}],"version-history":[{"count":0,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/25029\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media\/25010"}],"wp:attachment":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media?parent=25029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/categories?post=25029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/tags?post=25029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}