Question about 2004 Yamaha YZ 250 F

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Engine oil plugs?

I have a yamaha moto 4 dual range 4 wheeler. on the left engine side there is a plug on top of the transmission. curious of what liquid goes in there? right side has oil dipstick. no sight glass or dipstick on left side, just plug. it is NOT a 2004 . it is a late 80s model.

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Just oil,The same you run in the rest of the engine.

Posted on May 14, 2009

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Really confused, and searching around on the net made me more confused...I just bought my first 200 cc yamaha qaud bike, 2 stroke. Do I need to throw in alternative oil into the engine, or is the mixture...

On these engines, the two cycle oil is for lubrication of the crankshaft, rod bearings and piston wrist pin during operation. The transmission is separate from the moving engine components and requires oil for lubrication of the bearings, shafts and gears. There should be an oil port on the top of the transmission case for filling. Some have a dip stick on them and some have a site glass in the side of the transmission housing to visually see the level of the oil.

There is no place to add additional "oil to the engine" as you ask, but as the engine and transmission cases are attached at the base of the cylinder, its easy to see how someone can assume the transmission oil may be engine oil. Its not. The transmission oil also serves duty as lubricant for many motorcycle and 4 wheelers 'wet clutch' assembly as well. Low oil in the transmission could be detrimental to the clutch discs.

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Where do i fill transmission oil amnd where the drain plug for engine oil

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How to test stator on a Yamaha 225 Moto 4 four wheeler with a ohmmeter

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Hello- I hope you can help. I just bought a 86 moto 4 225 yamaha 4 wheeler. It was owned by the same elderly man and never raced or trail ridded. I bought it from his widow and it has sat for a long...

Did you drain the gas and oil and put fresh in before starting and running? Because if not you could have killed your engine over time gas and oil go bad from sitting. Also maby a new spark plug idk what else maby do a compression test.

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Use 10w40 motor oil in the gear box. Don't use any synthetic oils, oil marked "EC", or oil with "special" additives. Stick with the major brands; Pennzoil, Quaker State, Mobil or Shell.

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Locating the oil plug

Left side, forward of the foot peg and hidden behind the gear selector.
If it's a 4 wheel drive, you'll need to drain the transfer case oil at the same time.

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