My two boy tried to hold my bike up when i was at work.....came home and bike was on it's right side.oil is full and no leaks.oil light will not go out and don't dare to run it.....what do I do?

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I am a privet bike repair shop the seat post is a 25.4 mm 9 inch log i have a used seat post in stock and a new seat in stock that will work with a next px 4.0 a had the same issue you contact me on my web site

theres 3 which one? Primary left side of bike bottom of inner primary just below derby over, transmission under bike between rear shocks , oil is right side bottom in frame just in front of pivot shafts . 5/8th plug

1st The brakes: Once you have ran the cable through appropriate cable holders and to the brakes-you hold the brake calipers shut-remove excess slack from cable by pulling on it with pliers and back off a little before tightening the nut holding the cable(amount you have to back off tension depends on how strait your wheel is).
The Front Derailer doesn't usually have adjustment so you put the gear lever in top gear-loosen the nut holding the cable-push the derailer into the right position-remove slack from cable with pliers then tighten the nut.
The Rear Derailer: will need to be done the same way if your running a new cable..*But there is a screw on the derailer near the junction of the 2 parts that adjusts the position of the derailer- so you can do minor adjustments-**NOTE-there are 2 screws- 1 changes the position in or out and the other changes the angle**

On the earlier Fat Boys, the negative battery cable went from the negative side of the battery down to the rear bolt that holds the starter on. Without the proper tools, it can be a real bear to get to. Shine a flashlight on the backside of the starter from the right side of the bike. The cable should connect to that large bolt to the rear of the starter.

Good Luck
Steve

You have a piston wrist pin bearing about to fail

If the handlebars are "slipping" then you need to tighten the bolts on the stem. The stem is the piece that connects the handlebar to the bike itself and usually has 1, 2 or 4 hex headed bolts that hold the handlebar in place. The Park Tool website indicates that you should torque these bolts to 15-20 foot lbs. This is important because the potential for injury is high if the bars slip at the wrong time. If you don't have a torque wrench then take the bike to your local bike shop and let a professional with the proper tool do the work. This is so simple and quick a fix that they may not even charge you