Question about 2003 Yamaha YZ 125

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2003 yz 125 stalling

It rides fine and starts good but even when i hold in the clutch and am riding when i go, to stop with the brakes the bike gets a really low idol and then shuts off but if I give it a rev the idol comes back but I want to know what i can do to make it so I dont have to worry about it stalling thank you

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Sounds like the clutch is grabbing rip it apart and take a look

Posted on May 27, 2009

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You could turn the idle on the carb up higher, it may work.

Posted on May 28, 2009


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Even when I hold in my clutch my bike seems to still wants to move not fast but slowly it goes in gear fine but when I stop it will shut of cause of the bike not wanting to stop if low on oil what kinf fo...

ur clutch basket maybe grooved.... just file the grooves down with a file... but make sure not to take to much off. being that it is a 03 its been done b4... u dont want to much play between the fibers and basket...the fibers should be replaced...good luck

Jan 18, 2011 | 2003 Yamaha YZ 125

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Nsr 125 problem

It may be a safety switch in the clutch lever or bike stand switch being a bit sticky or broken wire in the wiring harness near the steering head that bends alot.

Apr 25, 2010 | 2000 Honda NSR 125

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Have a yz 125 2001 help coughs and sputters

Sounds like your carb is partially stopped up causing it to starve for fuel. I would suggest adding a good carb cleaner to the tank but sounds like it needs to be pulled and cleaned.

Ride Safely, Ed

Apr 08, 2010 | 2003 Yamaha YZ 125

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On my yz 125 my kick start is jammed

Were you riding it when it jammed because that could mean the that something is sized inside the motor, like the crank or the pistion

Mar 27, 2010 | 2003 Yamaha YZ 125

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Rekluse auto clutch

Hi, Terry156 ABSOLUTELY 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.
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Feb 22, 2010 | 2003 Yamaha YZ 125

1 Answer

2003 yz 125 clutch

This sounds like dirt and grit in the oil is causing the clutch to grab. Change the gearbox oil. Ride the bike for a couple of hours using the clutch often. Now drain the oil again and put in fresh oil. This will flush out the dirt and grit. Use 10w40 motor oil. Stick with the major brands; Pennzoil, Quaker State, Mobil or Shell. Do not use synthetics or oils with "special" additives.

Other possible causes are > a need to adjust the clutch lever for 1/4" free play at end of the lever > warped clutch plates or friction plates > Clutch has been worked on and assembled wrong > low oil level in the gearbox > frozen clutch hub bearing > Incorrect clutch cable being used.

Please post a comment after the double oil change. The 2x oil change is a cheap way to eliminate a possible cause and hey, it isn't gonna hurt anything. If you still have the problem I can help with a clutch rebuild.

Jun 04, 2009 | 2003 Yamaha YZ 125

1 Answer

Noise cooming from clutch or trans.? at idle and riding slow.. yz

a possible worn clutch lining or the clutch assembly is loose. the service manual will walk you through getting it tight with a torque wrench. best if you don't ride it for the mean time.

good luck

May 28, 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

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