Question about 2003 Yamaha YZ 125

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This is a shift fork or shift drum issue inside the transmission.

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Posted on Feb 21, 2009


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1976 yamaha yz 125 not shifting properly.not staying in gear

If it does stay in gear when barely throttled but does not stay in while under load, the engagement dogs on the gears(inside the engine) are bad and the engine will need to come apart to repair it.

Nov 17, 2014 | 2003 Yamaha YZ 125

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I have 2003 yz 125 it runs teriffic and shift's grate 1-5 but it wont go in to 6st gear . any ideas

Well - you will first have to buy an earlier model to get into 6th gear. The 2003 YZ 125 is a 5 speed transmission. There's nothing wrong with your bike.

Feb 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

My 2003 ttr 125 is clicking when in first gear

Chances are you have a broken gear tooth. ALWAYS replace gears in sets. ALWAYS.

Oct 17, 2009 | 2003 Yamaha YZ 125

1 Answer

Gear grinding in first gear withoutany visible damage 1992 yamaha yz 125

look to see if the clutch is burned out thats what happened to my ttr 125 and we change the clutch and it was fine then hope this helps

Sep 07, 2009 | 2003 Yamaha YZ 125

2 Answers

My 2003 YZ125 is stuck in fifth gear and won't move up and down i don't now what the problem is.Do i have to do a complete teardown of the gear box?

i had the same problem mr tombones is correct it was the bar that runs through the selector forks was bent

Jul 27, 2009 | 2003 Yamaha YZ 125

1 Answer

Hello, I have a YZ 80 and i was wondering why my

Look at ?

crank seal (drawing air)

ring wear

main jet (blocked jet's)

fuel starved carb

Jul 15, 2009 | 2003 Yamaha YZ 125

1 Answer

What oil for yz 125?

I would use maxima mt 75w gear oil in all 2-stroke trans.

May 01, 2009 | 2003 Yamaha YZ 125

2 Answers

Yz 125 2001 stays in gear when clutch pulled in

Lose the Honda transmission oil. It may have swollen the cork on the friction plates. Go with 10w40 in the gearbox. Any major brand; Mobil, Shell, Quaker State, Pennzoil, etc.. Try the new oil and give the cork a week to shrink back down > if they will. You may need to put in a new set of plates.

Apr 17, 2009 | 2003 Yamaha YZ 125

2 Answers

'95 Yamaha YZ 125 clutch - stays in gear when clutch is pulled in

the plates will stick to each other because of oil
check the clutch lever at the motor and make sure it is moving the arm that pushes the pressure plate and make sure it is moving

Apr 15, 2009 | 2003 Yamaha YZ 125

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