Question about 2003 Yamaha YZ 125

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Stuck in first gear 2001 Yamaha YZ 125

My 2001 yz 125 jammed in the first gear a few weeks ago, I had to get it home that why I couldn't get it out of first when I got home I messed about a while now [any ideas thx ] @

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  • Yamaha Master
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Hi, Bobby and the usual suspects are:
1. Improper clutch adjustment or not disengaging.
2. Bent shift shaft.
3. Shift fork bent or seized.
4. Gear seized on the shaft.
5. Gear positioning lever binding.
6. Shift return springs weak or broken.
7. Shift return spring pin loose
8. Shift mechanism arm spring is broken.
9. Shift mechanism arm is broken.
10. Shift drum is broken.
11. Shift lever loose on the shift shaft.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://thumpertalk.com/forums/topic/911069-yz-125-stuck-transmission
http://dirtrider.net/forums3/threads/yz-125-stuck-in-gear.182572
https://www.manualslib.com/manual/582255/Yamaha-Yz125-N-Lc.html
https://www.partsfish.com/page/oem-parts-for-yamaha
http://mybikemanuals.com/yamaha

Posted on Jul 30, 2019

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: 1999 yz 125 service or owners manual

www.bikebandit.com and or www.extremepowersports.com

these both have detailed pdf files you can look at.

Posted on Mar 26, 2009

  • 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

  • 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

  • 3567 Answers

SOURCE: How much shuld I ask for???

Without bent forks the bike would sell for about $1500. With the shop charge of $900 to fix the forks and a buyers hesitation to purchase a bike with problems, it will probably sell for $500 as a fair price.

I don't get paid for my answers but I do take pride in them, and I am only trying to help. So if you will, > > A “very helpful” rating for this answer? Thanks!

Posted on Jun 13, 2009

  • 3567 Answers

SOURCE: how do i decode yamaha yz 125 engin id number

You don't decode it. It is only a production run series number. Mororcycles are like cars in that respect. It is the frame number, AKA the "VIN number", is what carries all the information. Call a dealer with the frame number and he can tell you year, paint color, specific model and more. They may have a problem if the bike is too old. Yamaha changed to a newer code system a few years back.
Can I get a “very helpful” rating on this answer?

Posted on Aug 28, 2009

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