Change oil where is the bolt to empty the oil

The low oil sensor will disable the ignition if more than a quart low. Repair the oil leak.

Under your car in the front should be the oil pan. It has a bolt on one of it's sides. Loosen this bolt and take it out. Don't forget to put something under your car to catch the old oil. Also, change the oil filter. You should see the oil filter while you are under your car. Before putting in new oil and filter, make sure you put the bolt back in the oil pan. Put a little new oil into the new filter and wipe some oil with your finger around the oil filter rubber gasket. Make sure you don't overfill with oil !

there are 2 possibilities

Yes, you need to change the rear gear oil.
Back of the bike where axle runs through left crankcase. There is a small 10mm bolt on the bottom.
Take that out and the gear oil will drain. This is the drain bolt.
When empty replace the drain bolt and remove the fill bolt/cap 10mm on the side of the left crankcase. Should be approx 2 inches above the drain bolt. It will be marked right on the case.
Fill it up with gear oil until it runs out the hole your putting it into.
Screw the cap/bolt back in and your good to go.

Yes, your drive belt is breaking,tearing. Located on the left side of engine under clutch cover.

The manual transmission oil, or gear box oil can't last forever. It is a good idea to replace every 60K miles with a new one. Just as with motor oil, and oil change is cheap insurance. Buy synthetic oil if you can.
The manual transmission oil change is a simple procedure, but can complicated and creates costly problems.
First remove the filling bolt. In some cases this is siezed, If the heating doesn't help, you don't want a stripped filler bolt, with an empty transmission. Use WD-40 and do not use extensive force.
If the bolt still won't budge. Stop. Lower the car and visit a shop for service.
After removing the filler bolt (upper), then remove the drain bolt at the bottom.
Replace the drain bolt, with a new one, normally has a magnet, and thread it by hand after with a wrench.
Fill the gearbox with oil using a gear oil / lube pump. Replace the filling bolt and process same as with draining bolt.
If you will change the gear box oil every 60K miles this is the best insurance for your manual transmission. DO NOT FORGET TO REPLACE FILLING AND DRAINING BOLTS WITH NEW ONE.
In rare cases a rusty bolt is siezed, almost rust welded in the transmission housing, so the transmission must be removed and taken to a machine shop.

under the tranmission is a oil pan thats flat and a bolts all around it...undo the bolts and lower the pan... empty the pan then bolt it back on...now be shore to fill the trabnission up to the right amount to you can risk over heating a pre mature wear and tear...check sites from the right oil amount " at cold transmission...not hot"

How to change the engine oil. You will need to remove lower part of fairing to access under the engine. There you will find a drain bolt to undo. A large bolt located on the underside of the engine, usualy with an aluminium washer, or O ring. Undo the bolt and catch the oil in a suitable container. This should be done when the engine is warm, as the oil will flow out better. When empty, replace the sump bolt, preferebly with a new washer so it wont leak.
Replace the correct amount of oil back into the bike.
On top of the transfer case will be a plug you can undo by hand, the oil filler, mabey this has a dip stick on it for level. Most Kawasaki also had a site glass for the oil level, on the lowe , side of the engine.

It is not a valve but a bolt on the side of the oil pan. Dump it into a container that you can take to a recycler. Change the filter and fill it up with 4-5 qts fresh oil. Hope this helps.

It is on the drivers side very rear of the oil pain close to where the transmission is. It takes a 30 mm socket and a breaker bar.

when you see the velly of the bike, you could find big hole cap which is oil filter. Take it off and replace it. Next to the cap, there is a bolt same size as the cap bolt which is oil tank cap bolt. When you screw the bolt, the oil will plow out. Let it plow untill done. Put the bolt back when it empty. Right side of the bike and middle of the foot fade, you could find a refill cap. Replace oil untill the oil fill up enough. Back side of foot fade, There is a oil check. Between full and poor would be fine.

here's v6 3.8L

Section 03-01A: Engine, 3.8L 1996 Thunderbird, Cougar Workshop Manual
IN-VEHICLE SERVICE Oil Pan/Oil Pump Screen Cover and Tube Removal

1. Disconnect battery ground cable (14301).
   

1. Remove air cleaner outlet tube (9B659). Refer to Section 03-12 .
   

1. Remove two bolts retaining radiator upper sight shield (8C291) and position radiator upper sight shield aside.
   

1. Remove hood weather seal.
   

1. Remove windshield wipers.
   

1. Remove LH cowl vent screen and wiper module.
   

1. Install Three Bar Engine Support D88L-6000-A or equivalent.
   

1. Raise vehicle on a hoist. Refer to Section 00-02 .
   

1. Remove front engine support insulator through-bolts.
   

1. Partially lower vehicle.
   

1. Raise engine and support with Three Bar Engine Support D88L-6000-A or equivalent.
   

1. Raise vehicle.
   

1. Remove starter motor (11002).
   

1. Position drain pan.
   

1. Drain engine oil.
   

1. Remove oil bypass filter (6714).
   

1. Remove starter motor wire, ground strap and automatic transmission oil cooler lines.
   

1. Remove oil pan-to-bell housing bolts and bolts at crankshaft position sensor lower shield.
   

1. Remove remaining oil pan retaining bolts.
   

1. Remove steering shaft pinch bolt and separate steering shaft.
   

1. Position transmission jack under front sub-frame (5C145).
   

1. Remove six rearward bolts on front sub-frame. Loosen two forward front sub-frame bolts.
   

1. Remove lower shock absorber-to-front suspension lower arm bolts and nuts (both sides).
   

1. Lower front sub-frame.
   

1. Remove oil pan (6675).
   

1. Empty any residual oil from oil pan.
   

1. Remove oil pump screen cover and tube retainer bolts and support bracket nut. Remove oil pump screen cover and tube (6622) and discard oil pump inlet tube gasket (6626).