Nostalgic 16-inch Ninja gradually trending…? GPZ900R cooling hose/titanium water pipe kit replacement and more

Once work starts, jobs come pouring in like a linear precipitation band.
Since I’ve moved to Chiba, I want to close work reservations for the year as soon as possible ??

By the way, this work was requested before the move,
and the titanium water pipe took quite a while to arrive, so it’s a carried-over job.


Secret? [New Factory Completion Commemoration] Dream Motorcycle Maintenance SHOP, Finally in Full Operation!
↑Crowdfunding details are here! First, push the heart mark (*´ω`*)
*Currently under adjustment, we’ll definitely announce before starting so rest assured.


バイク・バイク用品はとやグループ
¥86,687 (2026/09/21 07:35時点 | 楽天市場調べ)


Sekaiimon, which makes eBay easy, is excellent (*´ω`*)

Having two lifts is convenient but makes photography difficult

Right now the lift in front has a Z1R on it, so I’m wondering how to photograph it…
Simply raising the lift would work, right?
Sorry for the pointless talk.

I think you all must be getting used to this image by now.
The fully stock Ninja is incredibly cool, isn’t it?
Our shop often does work that supplements what’s lacking in stock bikes.
We don’t customize excessively.

Don’t have unrealistic expectations. *For customization, please visit a custom shop.

The coolant color has been pretty intense for a while, so we’ll replace it properly.

Titanium water pipe set for GPZ900R 112OZEN002L Polished

The GPZ900R is amazing—I’m a bit surprised such parts are even manufactured.
Plus, since it’s titanium, it’s completely rust-free, which is really appreciated.

Timing matters too, but this time it took about 3-4 months for delivery.
Products seem abundant online, but when you actually try to buy them, they’re nowhere to be found.
If you pick out and prepare parts you might need ahead of time, it really increases your peace of mind with 20th-century bikes.

Wow, it’s really such a wonderful product.

This is pretty much how old water-cooled bikes look

I thought it wouldn’t be so bad in a plastic bottle,
but it turned out not to be that simple.

When left stationary for long periods, rust accumulates on the underside of the iron pipes due to gravity,
spreads from there, and eventually creates holes.

Let me check potential issues beforehand

There’s a theory that the stock muffler makes contact, so I’ll check that first.
If it contacts after everything’s done—oh no, needs modification—that’s a pain.

Plenty of clearance (*´ω`*)
I was a bit let down, honestly.

The deterioration is quite striking.
The inside of the radiator also needs a good rinse.

Did I really have to remove this many parts???

I’ll keep cleaning and push the work forward steadily.
Since we have most of the parts, it should go pretty fast!!


Secret? [New Factory Completion Commemoration] Dream Motorcycle Maintenance SHOP, Finally in Full Operation!
↑Crowdfunding details are here! First, push the heart mark (*´ω`*)
*Currently under adjustment, we’ll definitely announce before starting so rest assured.

バイク・バイク用品はとやグループ
¥86,687 (2026/09/21 07:35時点 | 楽天市場調べ)
ヘンリービギンズ(Henly Begins)
¥7,920 (2026/09/21 07:35時点 | Amazon調べ)
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