Question about 2005 Yamaha yZ 125

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I have a 2005 yz 125 I need a step by step on changing the oil in my bike. Also what oil to use and how much to put in Thanks

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  • Yamaha Master
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Hi, Jacobhibbele 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.
2005 yz 125 trans oil
2002 yz 125 oil change
YAMAHA YZ125 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Posted on Jul 18, 2016

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6ya6ya

6ya staff

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Posted on Jan 02, 2017

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tombones

  • 3567 Answers

SOURCE: 2003 YZ 250 Oil Change

Use 10w40 in the gearbox. Get the oil from your Yamaha dealer along with any filter your bike may need. Some bikes use an oil change as the "filter". To drain oil, get the engine warmed up and turn it off. Put a pan under the gearbox and remove the oil drain plug. Replace the oil plug when the flow becomes a slow drip. Change oil in late spring, the middle of summer and in early fall. Remember to lube the chain and adjust it when needed. Lubricate the cables with liquid graphite. Lastly, install a stock spark plug. Now go for a ride.

Please rate this solution as a "FixYa" if I have answered your questions. Thanks!

Posted on Mar 24, 2009

Blake Whitley

  • 43 Answers

SOURCE: oil level YZ 125

Hello....for the crank case you will want to use Yamalube 4 (10w-30) or an equivalent SAE 10W-30 SE motor oil. There is not a dip stick on the bike, Need to measure teh oil in accordance with Yamaha specs. You will need to check the owners manual or contact the local dealer service department and should be able to tell you how much needs to be added. If you don't have good 1qt mix cup you can get one at a good motorcycle shop. These are very help full in accurately measuring your premix oil for the fuel as well. Hope this helps

Posted on Apr 05, 2009

tombones

  • 3567 Answers

SOURCE: what oil should i have in yz 125 2 stroke

The clutch and gearbox share the same oil. The oil for the motor is 10w40. Stick with the major brands; Pennzoil, Quaker State, Mobil, Yamalube or Shell.

Posted on Apr 19, 2009

Anonymous

  • 44 Answers

SOURCE: what spark plug for yz 125?

I have a dennis kirk book, the correct spark plug is a --BR9ES--(NGK)

i always used SAE 10w-30 oil on all my dirtbikes,
no transmission fluid

for the chain you should move the back tire back until the chain is at a snug tension

Posted on Apr 24, 2009

Anonymous

  • 17 Answers

SOURCE: YZ 125 04 GEARBOX OIL

Should be about 650ml, isnt it stamped on the casing somewhere?

Posted on Jun 17, 2009

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1 Answer

How much oil do you put into a 2005 yz 125?


Hi, Anonymous 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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YAMAHA YZ125 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Feb 16, 2013 | 2004 Yamaha YZ 125

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Hi, Nbt_kmt 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 zero $ you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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Jul 14, 2012 | 2003 Yamaha YZ 125

1 Answer

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Hi, Colefarris79 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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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


May 21, 2012 | 2005 Yamaha yZ 250 F

1 Answer

What type of oil should i use in my bike? i have a yz 125 and it ran off of 20 - 50 should i use the same or what?


Hi,
That 20w-50 is a premium lubricant already, upgrading to synthetic is much costly but much better.
It depends on how you frequently maintained your lubricant changes. If that grade of oil does not make any problem, better stay with it!
Hope that clears your mind!
Thanks for using Fixya!

Dec 08, 2010 | 2005 Suzuki RM 250

1 Answer

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...


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.

Nov 16, 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

2 Answers

Diffrences betweein oils


your bike does not use tranny oil.only motor oil.your gears are lubricated by your motor oil as well as your clutch.it works by a sump system.I use yamahlube for my bike.

Apr 20, 2009 | 2003 Yamaha YZ 125

3 Answers

Oil is a grey colour in the engine of my yz 125 2001


Your bike is water cooled. Some of that water is leaking into the gear box. The cylinder gasket is the likely leak. I would let the shop take a look at it instead of trying to fix it yourself.

But be sure there is not an external source for the water. Do you wash the bike often? Ride the creek bed often? Leave the bike where the lawn sprinkler gets the bike wet? Leave it out in the rain? Change the oil and keep the bike dry. If the problem comes back then go see the dealer.

Mar 19, 2009 | 2003 Yamaha YZ 125

1 Answer

How do I change the oil seal on the water pump on at 02 YZ 125?


Hi,

This is a mechanical oil seal. In order to replace it, you will have to remove the right hand side engine cover. The seal is located in this cover.

If you are not an experienced mechanic then you should take your bike to a dealer.
NB use the genuine part for this bike.

Good luck

Jon

Mar 03, 2009 | 2004 Yamaha YZ 125

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