Question about 2003 Yamaha YZ 125

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What is the easiest way to change my shifter shaft on a 1999 yz 125... i put that my bike was a 2003 because they didnt have the option of a 1999...

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  • motox4life Nov 16, 2009

    i have some experience with working on bikes i just wanted to know if you have any tips that i could use for changing the shifter shaft

  • motox4life Nov 16, 2009

    i have some experience with working on bikes i just wanted to know if you have any tips that i could use for changing the shifter shaft

  • bulldogchief
    bulldogchief May 11, 2010

    From personal experience and 20+ years working with bikes, cars, trucks, etc., it really is better to let a professional do this. For someone who is experienced and certified it will pose not much of a problem...for the "shade tree" mechanic, this job can quickly turn into a cascading parts failure problem and result in months with the bike down...my recommendation to let a professional take care of this does not come lightly.

  • bulldogchief
    bulldogchief May 11, 2010

    Take it to a shop and let a professional do it.

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  • 167 Answers

Remove gearlever,drain gearbox oil,drain coolant,remove powervalve actuator cover,place small allen key in slot provided & remove bolt on actuator,remove radiator to waterpump hoses,remove clutch cover,slide shaft out from left to right,(If clutch hub is in the way remove clutch assembly),fit new shaft ,reassemble,replace gearbox oil & coolant & bobs ya uncle.

Posted on Nov 23, 2009

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try putting some pb blaster around your shifter shaft or check to see if the shaft or shifter is stripped

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The link below has exploded views of the bike in segments. Parts are numbered and named on a list below diagram. Might be a slow process to go from one section of the bike to another, but it's all there. Might be an idea to take some pics on your mobile for reference next time.
Cheers.

http://www.bikebandit.com/houseofmotorcycles/2004-yamaha-motorcycle-xv250s-virago-250/o/m8460

May 12, 2010 | 2003 Yamaha YZ 125

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Will these rims fit?


YOU MIGHT BE BETTER OFF RINGING A YAMAHA BIKE SHOP... THEY WILL BE ABLE TO TELL YOU IF IT WILL FIT...

Aug 01, 2009 | 2003 Yamaha YZ 125

1 Answer

Oil is leaking out of the shifter assenbly on my 2001 yamaha yx 125. there appears to be some type of seal there. how do i change it?


Most often, the shifter shaft seal is on the inside of the left-side engine/transmission cover. Check this with your repair manual. If so, you would need to remove the shifter assembly from the shifter shaft and then remove all the machine screws that hold the cover on and remove the cover (sliding it off the shifter shaft). If this is the case, you will also need a replacement cover gasket in addition to the shift shaft seal and it will be much less messy if you drain the engine oil first. Also, take care in re-installing the new seal and wrap the knurled end of the shifter shaft with tape prior to sliding the cover back on so it doesn't damage the new seal.

Jul 09, 2009 | 2003 Yamaha YZ 125

1 Answer

1997 yamah yz 125 lots of white smoke comeing out of pipe


How much was it smoking previously? Too much smoke (oil) is a whole lot better than not enough smoke (oil). If you are mixing the oil and gas then cut back on the mixture. Obviously it is out of balance. Put 1/2 gallon of raw gas in the tank to cut the mix. After a tank or so you should get the balance back.

You need a new shift shaft and probably need a new shift lever due to the bad splines. You can try the JB Weld but I suggest that you go ahead and drill the lever an shaft then put in a cold roll split pin from the hardware store. You have nothing to loose since the shaft and the lever are already toast.

Please rate this solution. Thanks!

May 01, 2009 | 2003 Yamaha YZ 125

1 Answer

I have a 2001 yz125 and i didnt get a owners manual with it,i need to know how much oil i need to put in the bike thanks for the help!


On the right side of the bike on the side of the motor there is a black screw 8 or 10 mm unscrew it out fill with oil till it leaks out of the screw hole put screw back in and your set make sure the bike is level strait up and down.

Apr 27, 2009 | 2003 Yamaha YZ 125

1 Answer

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If the best you have is large screwdrivers to pry the tire onto the rim then I think you might want to let the shop do it. It is not the easiest thing to do.

Apr 19, 2009 | 2003 Yamaha YZ 125

1 Answer

Water leak/mixing with oil


change the seal behind the water pump impeller
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1 Answer

Leak


Its the problem with engine seal get it replaced it will stop leaking...


Good luck..

Dec 01, 2008 | 2003 Yamaha YZ 125

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