After cutting my lawn for 1/2 hour my tractor throws engine oil out from the front of the engine on the right hand side if your sat on board. I have changed the gasket on the rocker box cover and sadly that did not cure it. can anyone point me in the right the direction are there any engine breather pipes?

need model number of mower and also model number of engine.

Oil will be drawn into the engine under heavy acceleration, irrespective of load. Check this before you worry! You might also check for any external leaks of oil or hydraulic fluids around the exhaust area which could cause white smoke at odd intervals.
Good luck

Engine oil should be changed every 50 hours of use or annually, whichever occurs first. The oil should be a 10W-30 and it takes about 1.5 quarts with filter change. Check/clean the air filter every time the oil is changed. After cleaning the filter, hold a light to the filter to see of there is light coming through. If the light is very faint or none at all change the filter. Spark plugs can be changed every other oil change. The front axle should be greased every service, there is a grease fitting on each side of the axle towards the top of the spindle, by the wheel. There is also a grease fitting on each blade spindle. They are not easy to grease without taking the belt shields off. Also check the bearings on the deck by grabbing the pulleys and try to rock side to side. Check the belts for cracks, and make sure the tire pressure is set right. If your tire pressure is off the mower will cut uneven. I usually set tire pressure 10psi for the rears and 12 psi for the front. Hope this is what you were looking for, Daniel.

Make sure you didn't overfill oil. You can download a manual here: http://www.managemylife.com/mmh/owner_manuals/27208/CRAFTSMAN-Lawn-Tractor-L0808359?brand_name_search=917256531+CRAFTSMAN
You can find parts at www.searspartsdirect.com
Many manuals are listed on page once you look parts

The deck could be bent, or you will probably have to level the back of the deck as well. Another thing to check is the air in the tires, this can cause an uneven cut. Although the tire may look pumped up, with the weight of a person on the tractor can cause an uneven cut.

It needs to be leveled. Level it from side to side and front to back, then drop the front 1/4" lower than the rear. The hangers holding the deck in place are adjustable.

hi if its a 4stroke 125..(not a 2stroke...)...lets say its the 125 4stroke engine...as you are sat on the scooter. the left hand side of the engine(not the exhaust side thats.right side as sat on scooter)..so left hand side of engine...below the air filtter box is a metal cover which as the drive belt in it!!..to the front of cover there is a dip stick..unscrew it & you can check the oil level & this is all so were you put the engine oil in......hope this helps!!

look at the side of the engine down low. There should be a pipe plug screwed in that has a square head. Put a drain pan under the area and remove this plug and the oil will drain out. It's best if the engine is warm. You should get 1 1/2 quarts of oil out of it. Let it drain for about 5 minutes and then re-install the pipe plug. Add 1 1/2 quarts of 30W oil and then cut the grass !

Yes it sounds like the rod broke but to be sure remove the spark plug and push a straw or something flexible about 2 inches into the cylinder and then turn the engine over by hand to see of the piston is moving.

Check your tire pressures:
10 psi. for rear tires.
14 psi. for the front.

Note that according to MTD:
Making sharp right hand turns. Twin-blade mower decks are designed with the discharge on the right side and two side-by-side blades. The side-by-side twin blade decks have the left hand blade positioned slightly forward and in front of the right blade. This provides cutting overlap when traveling in a straight line. As a result, the tractor should mainly operated making primarily left hand turns when cutting. During left turns this cutting overlap is maintained. If turning right when, it is possible to negate this overlap and leave an uncut strip.