Question about 1982 Yamaha XJ 650

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Engine oil in yz 250

Wondering if a two stroke yz 250 needs engine oil or if it lubes with the gas

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All the yz250 needs is the pre-mix two stroke oil that you mix in with the fuel and also the transmission oil. the transmission oil goes in the filler cap which is located on the engine next to the kickstart on my 2002 yz250. this is for two strokes only. hope this helps

Posted on Feb 14, 2012

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On Two-strokes you mix the oil and the gas together. If it has an oil pump the bike will do this for you if you fill up the oil tank.

Posted on Apr 12, 2009

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Posted on Jan 02, 2017

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1 Answer

How to change engine oil


Hi, There is no engine oil on this bike. It is a 2 stroke and the oil is in the mix.
When you mix the gas and 2 stroke oil together it will burn and lube the parts that need it. Hope that helps.

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Where abouts is the gear oil check level bolt on a yamaha yz 250 two stroke?


Hi, Tomasxoniell for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Sep 14, 2010 | 2003 Yamaha YZ 250

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2003 YZ250 two stroke, where is the crank case oil full level?


why would you add oil to a crankcase!Especially when you MIX oil and gas for the engine,the only case you need to add to is the drive case for the chain

Mar 23, 2010 | 2003 Yamaha YZ 250

1 Answer

What is the ratios of oil to gas?


32 to 1 equals 4 ounces two stroke engine oil per one gallon of gas. Be sure to use two stroke engine oil and not motor oil.10w40 motor oil is for the gearbox.

Dec 19, 2009 | 2003 Yamaha YZ 125

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What is the oil mixture ratio for a 2005 kawasaki 250


Use TWO STROKE ENGINE OIL in the pump. If not using an automatic oil pump, then mix the gas and oil 32 to 1. That equals 4 ounces of TWO STROKE ENGINE OIL to one gallon of gas. NEVER use motor oil in the gas. Only two stroke engine oil.

Aug 31, 2009 | 2005 kawasaki KX 250

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Oil change on a 2003 yz250f.


the oil in the frame is pumped into the crankcase, i had the same problem so i asked at the yamaha dealers. the dipstick on the frame is for checking the oil and the plug on the crankcase is for filling it with oil. I believe it takes about 1liter of oil from other posts but i could be mistaken

Aug 04, 2009 | Yamaha YZ 250 F Motorcycles

1 Answer

What oil should i use


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. If in a hot area like Texas or New Mexico go with 20w50.
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Use TWO STROKE ENGINE OIL in the pump. If not using an automatic oil pump, then mix the gas and oil 32 to 1. That equals 4 ounces of TWO STROKE ENGINE OIL to one gallon of gas. NEVER use motor oil in the gas. Only two stroke engine oil.

Jul 13, 2009 | 2004 Suzuki RM-Z 250

2 Answers

Do i have to mix 2 stroke oil on the gas for the 4 stroke bikes or just add regular gas on the tank? if is what is the scale for the mix?


DO NOT mix oil in the gas on your four stroke engine. You will foul the spark plug(s), build up deposits on the valves and head, and make a smokey, smelly mess. A two stroke engine uses the fuel/oil mix to lubricate the engine before being used as fuel. A four stroke engine has a separate lubrication system and does not normally burn any oil. As the name implies, a two stroke engine works in two strokes. The first stroke is downward, where the fuel/oil mix and air are drawn into the cylinder. The momentum from the crankshaft counterbalance or force from the other cylinder(s) drive the piston back up compressing the mix, and the spark plug sparks at or slightly before the top of the stroke. The rapid combustion of the fuel/oil/air mix drives the piston down, which is the power stroke, and then the cycle starts all over again. A four stroke engine has an intake stroke down taking in the fuel/air mix, a compression stroke up, a power stroke down as the fuel/air mix is ignited at or before the top of the stroke, and a exhaust stroke up before starting all over again. A four stroke is much cleaner and more reliable than a two stroke, but it is heavier and has less torque. A two stroke engine is much lighter and has more torque, but takes more maintenance.

Feb 28, 2009 | 2003 Yamaha YZ 250 F

1 Answer

Oil


drain the fuel, locate the float bowl drain screw, lowest screw on the carb and loosen it to drain the carb. replace the fuel with proper pre-mix, replace the spark plug and it should be fine

Nov 10, 2008 | 2004 Yamaha YZ 250 F

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