After replacing starter and removing slave cylinder, clutch fails to work

Most likely the slave cylinder is leaking. When a master cylinder leaks it usually wets the back of the clutch pedal and then disappears into the carpet.

Slave cylinder seals usually last almost indefinitely and when they fail it is usually due to fluid contamination, especially corrosion-causing moisture roughening the cylinder bore, though a long period working in the same range of movement can create a wear ridge in the bore. Replacing the clutch probably forced the cylinder into a new range of movement and the seal didn't like the wear ridge.

Replacing the master cylinder would probably pay dividends over the longer term...

1995 YJ if still stock all that is ONE PART, see FSM quote below.
is the fluid dropping, day by day, week by week???
y/n?
yes, then either the slave or mc are bad.
sometimes both can fail, (rust happens inside and is progressive)
what I do , is this. (if not wanting to change out both)
1: look at the MC, if it done leak down either side of the fire wall
it might be good (dont mean the piston seals good but its not leaking, so if fluid drops , (every week say) the the MC is ok
and for sure the slave leaks.

2: so where is your slave. have you looked,? (swaps happen)
most leak and can not be detected as that leak landed on the road to work.
for sure its just 2 parts, here, you know the clutch is ok.
because it works with fluid in the system and bled.
now ILL PASTE THE FSM words out of a real factory service manual.
they are clear.
FSM words, QUOTE:
CLUTCH HYDRAULIC LINKAGE REMOVAL
The clutch master cylinder, slave cylinder
and connecting line are serviced as an assembly
only. The linkage components cannot be
overhauled or serviced separately. The cylinders
and connecting line are sealed units. Also
note that removal/installation procedures for
right and left hand drive models are basically
the same. Only master cylinder location is different.
(1) Raise vehicle.
(2) Remove fasteners attaching slave cylinder to
clutch housing.
(3) Remove slave cylinder from clutch housing (Fig.
9).
(4) Disengage clutch fluid line from body clips.
(5) Lower vehicle.
(6) Verify that cap on clutch master cylinder reservoir
is tight. This is necessary to avoid undue spillage
during removal.
(7) Remove clutch master cylinder attaching nuts.
Note that one nut is accessible from engine compartment
and one nut is accessible from under instrument
panel (Figs. 10 and 11).
(8) Remove clip securing clutch master cylinder
push rod to pedal and slide push rod off pedal pin.
(9) Disconnect clutch pedal position switch wires.
(10) If pedal pin is equipped with bushing, inspect
condition of bushing and replace it if worn or damaged.
(11) Remove clutch hydraulic linkage through engine
compartment.

no adjustment on hydraulic systems

if they work ......they work

if leaking or bypassing
replace failed master or slave cylinder slave

if both ok =failed clutch

The clutch hydraulic system is very simple, just 3 pieces. There is the clutch master cylinder with attached fluid reservoir-mounted on the firewall, there is a steel line from the master going down to the transaxle bell housing, and there is the clutch slave cylinder on the bell housing that the steel line connects to.
If yours is leaking under the car, it is probably the slave cylinder, either that or the steel line. Either one should be easy to replace.

No the starter doesn't need to be removed,that part may be loose,may need pushing to click in place,Here's a link on the starter,that's what I read. Repair Guides Starting System Starter AutoZone com Here's a link on clutch slave cylinder removal,they may have just knocked it loose,try moving with hand to lock in. Repair Guides Starting System Starter AutoZone com

No, you don't have to replace the clutch. The fluid on the passenger side sounds like where your slave cylinder is? But it may be fluid running down the outside of the line to there...because I think the problem is your clutch master cylinder. The fluid on the pedal is the reason. Feel the carpet behind the pedal and all around there for wetness. If it is clutch fluid, your master cylinder will have to come off for repair or replacement. Any time you have fluid there, it's a sure sign of clutch master cylinder failure.
Whether it's the master or the slave cylinder (or both), you should be able to handle it. The master cylkinder is a little more difficult than the slave to replace, but doable. Remove the line fitting, 2 bolts holding cylinder to firewall, and inside the car is the clutch rod from the pedal to the cylinder that needs removing. That's about it. After you get the system free from further leaking, all you need to do is bleed the slave cylinder so your clutch works again.
Good luck.

The solution is pretty cut-and-dry. Fix the fluid leak and your transmission will go into gear. I don't know what to tell you to fix exactly because I do not know where it is leaking from. If it is leaking from the slave cylinder, replace the slave cylinder; If it is leaking from the master cylinder, replace the master cylinder, etc.

Fixing just one part of the clutch may not be the best option for you however. Clutch parts seem to wear out all within a few thousand miles of one-another. Depending on how many miles are on your vehicle you may want to do a complete clutch replacement so you won't have any further clutch problems for several years.

The internal slave cylinder can only be accessed by removing transmission -- suggest you remove clutch assy and check before reinstalling the transmission -- you may want to replace clutch if worn down to rivets.

There are two types of clutch actuators. (Mechanical & Hydtraulic)
A. For mechanical type,- Check the clutch cable as
this could be cut from wear and tear. This is easy
to replace. You can find this connected to the
pedal and the clutch lever near the transmission.
B.For hydraulic operated - Check the level of the
hydraulic oil at the cylinder of the hydraulic
actuator under the hood. This actuator is
directly connected to the pushrod driven by the
pedal. If the actuator is leaking, you have buy
a repair kit (Hyraulic clutch repair kit for Ford
Ranger 1994 MOdel.) These items must be
repaired to activate your pedal.

I understand these cars have a sealed clutch system. When they fail you replace the whole kit master,hydrolic pipe and slave (comes in one piece). Search on ebay maybe £45 or so.