First edition: I made some enthusiastic predictions about oil-cooled Yoshimura products I’d love to see.

YOSHIMURA is getting serious? and will be developing parts for bikes equipped with oil-cooled engines . This is incredibly welcome news (*´ω`*)


Basically aftermarket parts that serve as OEM replacements , but user and shop confidence levels will skyrocket.

“Wouldn’t it be nice if…” I made some hopeful predictions.

Users/SHOP/Yoshimura—everyone being happy is the best outcome

Yoshimura, SHOP, and users —all three parties being happy is wonderful.

“Sales volume, demand, and performance” being satisfied would be great.
High compatibility drives sales volume. Stable supply is realized.
Items that become unavailable are replaced, and installation convenience is improved to meet demand.
By acquiring products performance is revived and high performance is achieved .

If possible expanding sales domestically and internationally would likely lead to more product lineup expansion in the future.

I’m writing this based on my own subjective views. *Including hopeful expectations…*
So I imagined some things that would be really helpful to have


First, I’d like to see Yoshimura cam-related parts released simultaneously

  • Yoshimura camshaft
  • GSX-R750RK TYPE lightweight rocker arm
  • Vernier (slotted) pre-machined cam sprocket
  • Titanium head cover bolt
  • Head cover gasket set
  • Oil-cooled valve timing wheel adapter

〇 When replacing the cam, rocker arm replacement is essential.
Honestly, if a GSX-R750RK type lightweight rocker arm were available, you’d buy it at the same time.
That attention to detail is nice.

〇 Machining long holes in the cam sprocket is tedious.
The silent chain type is somewhat better, but I’d choose this if it were sold.
Also, the regular GSX-R chain type compared to the silent chain “is incomparably difficult to work with”
By the way, the cam sprocket is discontinued, so it should definitely be a set part

〇 Drilled lightened or sleek simple head cover bolts
If Yoshimura made head cover bolts, you’d want to install them, right?
“Hmm, that looks like you’re doing something special” that kind of vibe would increase.
Oh! These weird M7 head cover bolts
are actually used on quite a few bikes = people will adapt them = sales volume is promising
As they say, fashion starts from the head, right? …* Who said that?

〇 For convenience, a head cover gasket set would be nice too
Parts ordering is tedious and time-consuming. Even in the 21st century, you still have to copy-paste the same part numbers multiple times.
If we could create custom order sheets, it would reduce ordering hassle. That’s what I think.
A gasket set that eliminates that tedium and hassle would be useful.
*Though this seems like it would be labor-intensive due to the number of items, difficult to manage, and not very profitable.

〇 Oil-cooled valve timing wheel adapter
You’d want a nice adapter that can be installed without removing pickups at all, right?
We actually made one, but I think such a tool would be convenient.

Anyway, I just wrote down some things that came to mind. There’s still more.

  • Copied the URL !