
From Osaka—the owner wants to ride this bike for years to come. The condition isn’t bad, so we decided to tackle the spots that would be difficult to service later. Rear maintenance + OH Carburettor maintenance Oil-cooled maintenance Yoshimura TIEX—that’s what was requested.

Removing the swingarm and linkage takes about 15 to 20 minutes. That’s where the quick part ends.
The linkage is dirty on the outside, but the condition inside is excellent. We’ve already ordered parts, so we’ll do a thorough replacement while we’re at it.

The condition depends on whether oil remains. It’s not the rotating parts that wear—it’s the same spot that keeps rubbing endlessly. With plenty of oil, that contact area stays well lubricated.

The chain slider is in rough shape too. If this is dirty, the chain will get dirty no matter how new you make it. After you apply chain oil, wipe it off.

The pop rivets are spinning—it’s the worst. We’ll deal with that later.

All the other parts are in nice condition—reassuring.


There was plenty of oil in there.

We pulled out all the swingarm and linkage bearings. We polish and clean anything that can be restored. It feels great.

We replaced all the bearings and packed them thoroughly with Newtech NC100 grease.

Now it’s just assembly. When you’ve cleaned it this well, you’ll want to reach in and polish it again after every ride.

Always protect your work. Grimy springs are the worst.

We carefully straightened the bent step boss from the inside with a jack, within a safe range.
