Question about 2003 Yamaha YZ 125

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When i kick my 85 yamaha yz 125 gas and oil come dripping out of my engine where the exhaust and engine meet ? Helpppp

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  • 37 Answers

Sounds like you have blown the exhaust gasket. Not a difficult repair .. just undo the exhaust manifold bolts and remove the exhaust. Purchase a new gasket and reassemble with the correct torque settings.


Posted on Sep 26, 2009

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1 Answer

2001 yz `125 bogs on hard throttle and blows a lot of smoke


Hi, Anonymous and the usual suspects are:
1. Oil tank/pan overfilled.
2. Restricted oil return line to oil tank/pan.
3. Restricted breather operation.
4. Restricted oil filter.
5. Piston rings badly worn or broken.
6. Valve guides worn and or seals worn, crushed, missing, or have come of guide and are literally pumping oil through the valve guide.
7. O-ring damaged or missing from oil pump at crankcase junction (also results in poor engine performance). 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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http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Aug 25, 2013 | 2004 Yamaha YZ 125

1 Answer

My dirt bike is pushing out smoke when i hit the gas, why is it doing that??


Hi, Candice and the usual suspects are:
1. Oil tank/pan overfilled.
2. Restricted oil return line to oil tank/pan.
3. Restricted breather operation.
4. Restricted oil filter.
5. Piston rings badly worn or broken.
6. Valve guides worn and or seals worn, crushed, missing, or have come of guide and are literally pumping oil through the valve guide.
7. O-ring damaged or missing from oil pump at crankcase junction (also results in poor engine performance). 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.
2006 Yamaha yz125 Excessive white smoke
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YAMAHA YZ125 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Feb 06, 2013 | 2003 Yamaha YZ 125

1 Answer

I have a 1996 Yamaha yz80 that oil is coming out the exhaust pipe. I am running 40 to 1 ratio gas oil mixture. Any ideas what may be the problem?


Two strokes just leak oil especially where the pipe meets the motor you could try new oring but seriously only be worried if you dont have oil leaking from exhaust on a two stroke is rule of thumb

Apr 17, 2011 | 2003 Yamaha YZ 125

1 Answer

Reccommended gear oil for 2003 Yamaha YZ-125


85\90 transmission oil such as bel ray, motul or yamalube

May 26, 2010 | 2003 Yamaha YZ 125

1 Answer

Identify bike model year and size


Hi, Anonymous 1998 Yamaha YZ80/85 for more information about your question and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
JYACB0768WA000701 Yamaha YZ 80LW YZ 85 TT R90 1998 VIN decoder and vehicle...
Decode Your Yamaha VIN Number
YAMAHA YZ125 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

May 12, 2010 | 2003 Yamaha YZ 125

1 Answer

How much oil do you put in a 1995 yamaha yz 85?


for the crank case you just fill it up to about 1 inch from where you fill it ( it doenn't need to be exact)

for the two stroke oil you can just fill that up full

Jan 10, 2010 | 2003 Yamaha YZ 125

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

2 Answers

Oil and gas mixture coming out by exhaust


first off make sure the oil gas mixture is correct and mixed very well.... have the carb cleaned out very well or even rebuilt, jetted and adjusted...

Jul 06, 2009 | 2003 Yamaha YZ 125

1 Answer

Kicking oil out exhaust


repack the silencer and what are you mixing ratios for fuel??

Apr 14, 2009 | 2003 Yamaha YZ 125

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