How to change engine oil 10t802 - Mtd 22" Yard Machine Push Mower

Have you checked out the govener linkage located on crank case side near carb and air filter? make sure linkage and spring are connected and moving freely.If linkage and spring are not functioning properly it can cause engine to race. marcus

take the model # type # and code # to your local mower parts store they will sell you all of that and van tell you the hp.

Drain the gas, then drain the oil. Now refill the oil to the correct amount/height. Remove the spark plug and rinse/clean it in some gas. If there is any build up, scrape it out and make sure the gap is correct. Spin the engine a couple of times to actuate everything. If you see any oil at the spark plug hole, spray a small amount of gas through the spark plug hole and spin the engine to distribute the gas. Reinstall the spark plug and put some gas in the tank. Remove the air cleaner, place your hand over the carb throat and spin the engine a couple of times. You will partially flood the engine, but this will thin any oil left in the cylinder and intake/exhaust ports. Replace the air cleaner and try to start the engine as you normally would. You should have compression by now and the engine should be trying to run. If it feels like it is still flooded, remove the spark plug again and spin the engine a couple of times with the throttle in the off position. Reinstall the spark plug after a few minutes and try to start the engine normally. It should run. It will probably be a bit rough and smoke, but this should pass once the oil burns away. If the engine still runs rough after the smoke clears, clean the spark plug again as it may be fouled.

Check govner rod Assembly. If it has its springs intact than more than likely the govner is broken inside motor.

Don't sound like ignition. Surging is in most cases fuel. Check the fuel filter. The carburetor may look clean, but something is preventing good fuel supply.

that engine uses a fin style governor remove the upper cover and see if there is a nest or something holding the fins movement

The diaphragm between the carburettor and the fuel tank needs renewing.

I looked up your engine in the mower parts manual below: (232kb)
http://www.oscar-wilson.com/MANUALS/POULAN/96112008300.PDF
The engine number is: 10T802-1098-B1 vs EA

The ENGINE operators manual is here: (7.66mb & not much help)
http://www.briggsandstratton.com/document/index.aspx?doc=277038WST_J_LO.pdf

The engine parts list is here:
http://www.briggsandstratton.com/engines/shop/parts-and-accessories/illustrated-parts-lists/?modelnumber=10T802-1098-B1
Open the diagram carburetor controls fuel supply and governor spring or use this parts manual link to download the engine parts pdf file: (Best!)
http://www.briggsandstratton.com/document/index.aspx?doc=MS3747_K_LO.pdf

Either the primer bulb item 976 has a pin hole in it or... the diaphragm item 394 has a pin hole in it.
Given the cost of both parts I would replace them both and send you on your merry way if you brought it to me for repair.

There are 2 part numbers for the diaphragm. 795083 (Most models) and 796478 used on type 156 models. The type number is usually on the air shroud near the spark plug.

The primber bulb 694394 is common to both engine types.

As I mentioned earlier one of these items has failed. I recommend you replace them both and your mower will run fine. ( The gas tank and carb have to be removed as an assembly before you can change the carb diaphragm once the tank is removed.

Thanks for choosing FixYa,
Kelly

It's listed in your owner's manual. Schedule A is normal driving conditions.
SCHEDULE "A"
7,500 miles (12 000km) or at 6 months
- Change engine oil.
- Replace engine oil filter.

15,000 miles (24 000km) or at 12 months
- Change engine oil.
- Replace engine oil filter.

22,500 miles (36 000km) or at 18 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.

30,000 miles (48 000km) or at 24 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace spark plugs.
- Drain and refill automatic transmission fluid and filter (4.7L).

37,500 miles (60 000km) or at 30 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Drain and refill transfer case fluid.

45,000 miles (72 000km) or at 36 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.
- Flush and replace engine coolant at 36 months, regardless of mileage.

52,500 miles (84 000km) or at 42 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if not done at 46 months.

60,000 miles (96 000km) or at 48 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace ignition cables (5.2L/5.9L).
- Inspect PCV valve, replace as necessary.
- Replace spark plugs.
- Inspect auto tension drive belt and replace as necessary (5.2L/5.9L).
- Drain and refill automatic transmission fluid (4.7L).

67,500 miles (108 000km) or at 54 months
- Change engine oil.
- Replace engine oil filter.
- Inspect front wheel bearings.
- Inspect brake linings.

75,000 miles (120 000km) or at 60 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Drain and refill transfer case.
- Flush and replace engine coolant if it has been 30,000miles (48 000km) or 24 months since last change.
- Inspect auto tension drive belt and replace if required.

82,500 miles (132 000km) or at 66 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if it has been 30,000miles (48 000km) or 24 months since last change.

90,000 miles (144 000km) or at 72 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace spark plugs.
- Inspect front wheel bearings.
- Inspect brake linings.
- Inspect auto tension drive belt and replace as necessary.
- Drain and refill automatic transmission fluid (4.7L).

97,500 miles (156 000km) or at 78 months
- Change engine oil.
- Replace engine oil filter.

105,000 miles (168 000km) or at 84 months
- Change engine oil.
- Replace engine oil filter.
- Flush and replace engine coolant if it has been 30,000 miles (48 000km) or 24 months since last change.
- Inspect auto tension drive belt and replace if required.

112,500 miles (181 000km) or at 90 months
- Change engine oil.
- Replace engine oil filter.
- Drain and refill automatic transmission fluid and filter (5.2L/5.9L).
- Inspect front wheel bearings.
- Inspect brake linings.
- Flush and replace engine coolant if it has been 30,000 miles (48 000km) or 24 months since last change.

120,000 miles (192 000km) or at 96 months
- Change engine oil.
- Replace engine oil filter.
- Replace engine air cleaner filter.
- Replace ignition cables (5.2L/5.9L).
- Inspect PCV valve, replace as necessary.
- Replace spark plugs.
- Inspect auto tension drive belt and replace as necessary.
- Drain and refill automatic transmission fluid (4.7L).

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