Why does gasoline get in my oil on murrays tractor? i changed filter on carburator an installed new gasoline filter.

Check oil level, take off the spark plug clean it and regap and or buy new one and regap. Take carburator off and clean it. Test coil and ignition switch. Clean gas tank and fuel lines. There could be a lot of other things to check. It could be a safety switch, dirty cables,bad battery or bad wiring. It could just be a loose wire that's not grounded.

does the oil smell like gas the needle valve in the carb is not deating and the carb drains into the crankcase

remove the tin upper engine cover and look at the gear on the starter yes they do break the gear the gear is only $10

ok clean up the fuel tank and put a new gasoline, clean all four carburators and spark plug or change a new one,... drain gear oil change a new oil filter,..... change new battery also,.... safe ride bro,......... and enjoy the power,.................

If all is as you say you now need to check that it is mechanically sound, remove the muffler and check the condition of the piston through the exhaust port, any signs of scuffing or damage to the piston and the machine will have to come apart to assess the damage.
Good luck.

You could use new oil diluted with kerosene, or even gasoline, to help remove sludge....just run it for a short time and then drain it. But since you have a filter to remove bits of metal from the oil I think there is no need to do anything except change the oil at recommended intervals. It would be helpful to buy a magnetic drain plug to trap small pieces of metal.

there is a spring that fits in carby but most people put it in the tank hole....

buy a ethanol based spray called start ya bastard. spray in the carburator and then pull the cord. 9 out of ten it will start

Usually when you find gasoline in your crankcase it's because your carburator is leaking fuel into the cylinder heads. From there it goes into the cylinders on top of the pistons. Down past the rings into the crankcase. If enough gasoline goes in there, it will go past the sprocket shaft seal and into the primary case as well.

This is normally caused by a bit of trash getting under the float valve in the carburator. But, on a 1996 model, there is supposed to be a vacuum operated petcock. The petcock is supposed to close whenever there is no vacuum on it that is supplied from the intake manifold. Either the petcock has been changed, which is not unusual since the petcocks were quite troublesome, or it is not working properly.

First, you need to clean out the carb. and get any trash out from under the float valve. Remove the carb from the engine. Take the float bowl off the bottom of the carb. Pull the pin out that holds the floats and remove them and the float needle valve. Blow compressed air through the fuel inlet fitting to clean any trash out of the fuel valve seat. Inspect the needle valve for damage, replace if necessary. Reassemble and reinstall the carburator. Check for proper operation prior to starting the engine.

With the carb cleaned, you can install either an aftermarket manual petcock (Pingel) or a Harley petcock for a 1994 or prior model. These are manual petcocks. When you're not riding your bike, turn the petcock to the "OFF" position. Also, install a fuel filter in your fuel line between the tank and the carb. Get one of the good ones with the scintered metal filters in it.

Change your oil and filter. Check your primary oil as well. Change it if contaminated with gasoline. Before you reinstall your air filter, connect the fuel line to the carb and turn the gas on. Closely watch the inside of the carb throat to see if fuel starts to "bubble up" into the throat of the carb. This usually takes a few minutes so be patient. If it does, you need to replace the float valve needle with a new one and check the float setting. If it doesn't "bubble up" you're good to go. Then, don't forget to turn your petcock to the "OFF" position when you quit riding the bike.

Drain oil... it is full of gasoline due to a bad float pin and rubber gromet in your carb. When your float pin and gromet fail, gas just keeps flowing into your carburetor, eventually flooding your motor with gas and oil mix.