Kawasaki triples came stock with ball bearings in the steering head. If you
still have ball bearings in your steering head, they might be 40 years old
unless somebody replaced them later on with ball bearings. Sometimes you
can tell the bearings are worn out because turning the handlebars back and
forth should be smooth. If it feels notchy, it’s probably because the
bearings are shot. Tapered steering bearings are the modern norm now, why
bother with ball bearings?
Here’s how I tackled changing steering head bearings.
1. Order the bearings. Kawasaki H1’s and H2’s both (all Triples) take the
same size bearings. Search the internet and you’ll see prices ranging from
around $25 to $70+. As far as I can tell, the bearings are all of the same
quality. How much do you want to spend? Yeah, me too I want the least
expensive bearings!
OEM Cycle Shop on E-bay
currently sells them for $28 including postage.
The kit is made by All Balls and the stock number is 22-2012 or 22-1012. The
kits are the same, either one will work. Time to change bearings.
2. Remove the front wheel, remove the fork tubes and unscrew the big bolt on
top of the upper triple clamp. Then remove the two triple clamps from the
front end. It’s good to have a box or something similar handy to put below
the lower triple clamp and keep it from crashing onto the ground. Pound out
the upper and lower races from the steering head. If you don’t have a drift,
use a pipe about a foot long or longer.
Here’s an illustration from the shop manual, showing removal of the top lock
nut and then the bearing races.
3. Remove the bottom race from the lower triple clamp. I use a blunt
screwdriver to get underneath the race then tap it with a hammer, going
around the race and getting it to lift up. Then it can be pulled off.
4. Unpack the tapered roller bearings. There are six pieces total, three
for the top and three for the bottom. The bearings are identical for top
and bottom so they won’t get mixed up.
Put a seal at the bottom of the lower triple clamp. The seal should cup
upwards as it’s going to keep grease in and water out. Then slide the
tapered bearing down. It will stick about 2 inches from the bottom as the
stem is thicker there. We want to press the bearing down without destroying
it.
I have pretty basic tools so I carefully use an old, blunt screwdriver to
push on the body of the bearing (not the rollers). Carefully tap the
screwdriver with a hammer onto the body of the bearing going around the stem
and slowly the bearing will settle down onto the bearing seal at the bottom.
5. Now it’s time to install the bearing races. Here I’m lining up the lower
race to the head tube.
Tap the edge of the race gently with a hammer to get it into the tube. I
put a little grease around the outside edge of the race before installing to
help it slide in there.
Here’s the race snugly fitted into the bottom of the head tube.
Next I went to the top side of the head tube and did the same thing. The
wider end of the upper race faces out (just as the wider end of the lower
race is facing out in the picture above).
6. After both races were installed, I greased the tapered bearings, slid
the bottom triple clamp into the head tube, then put the top tapered bearing
in, the bearing seal on top of that (cup facing down) and then the metal cup
and the lock nut that secures the metal cup into place.
7. Tighten the lock nut so that the bearings rotate smoothly but not too
tight and not too loose. There should be no free play, that’s why we’re
installing new bearings, so that the forks turn smoothly from side to side
but don’t otherwise move around in the steering head.
8. Next I reinstalled the top triple clamp. Tighten the big bolt on the
top, along with the fork tube pinch bolts on the upper and lower triple
clamps.
9. If headlight ears are loose insert an O-ring above the ear as a spacer to
tighten it up.