Question about 2003 Yamaha YZ 125

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

Shifting not correct, very hard to know what gear your in, 1976 model 125c

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  • 427 Answers

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.

Posted on Nov 22, 2014

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Posted on Jan 02, 2017

tellme2
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SOURCE: '95 Yamaha YZ 125 clutch - stays in gear when clutch is pulled in

hey dude,, just thought id come in and give u some tips or 3,, i take it when u pull clutch lever in, and try and change gear it feels like your foot will snap b4 it goes in gear,, if that makes sense,, firstly mate,is to make sure the clutch cable slides freely ,easest way is to take cable off and just grab 1 end and make sure it isnt sticky,, if so dip one end of the cable in a bit of old oil ,,whilst holdin the other end ,pull and push the cable inner, this will **** up a bit of lubricant inside the cable ,, keep doin this each end till free to move, ,,next step if the cables ok,,, and may need help if u dont no,drain the oil out,,and as u r sat on the bike is to remove the clutch casing on the right hand side of the moter,where the bottom end of the cable goes,remove the casing being carefull not damage the gasket,,then u will see clutch plates and friction plates housed,, undo the 7 or 8 spring loaded bolts carefully take the first fibre plate out then metal friction plate then another fibre plate and so on,, wen u take the 1st plate out place that on the bench ,stacking each plate on top of one another, cause they have to go back in as they came out,,wen out,,u need a piece of wet n dry paper ,or fine emery,,and just wipe round both sides of the fibre plates taking the shine off them,as u put them back in,, put casing back on with a decent gasket,, oil back in cable on, make sure cable has no free play on the lever so wen u r about to pull lever in it bite straight away,, start her up, warm it up and try it,,any probs still il eat my shoe,, take care m8

Posted on Jan 10, 2009

  • 3567 Answers

SOURCE: 03 YZ 250 won't shift into 3rd

You have a bent shift fork. The repair means removing the engine from the frame then tearing it down into about 75 parts which will then allow the bent shift fork to be replaced. This is not a job for the amature mechanic. Wish I were there with you to guide the repair.

Posted on Mar 11, 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

  • 3230 Answers

SOURCE: Yamaha Raptor Shifting

Hi there,

Well, it seems like there is a problem with the shift return spring; it's on the backend of the gear, Seems broken or not attached properly, so first of all do this check.

Good Luck!!
Thanks

Posted on Jul 08, 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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1 Answer

My yz 125 dirtbike is stuck in 1st gear while its off and wont start up


try to compleatly shift down then half up with the clucth in

Sep 14, 2012 | 2003 Yamaha YZ 125

1 Answer

My 03 yz 125 wont shift into 1st gear, when i hold the clutch in and shift down into first gear it will just stay in neutral


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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http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Jun 04, 2012 | 2003 Yamaha YZ 125

1 Answer

I have an 04 yz 125 that won't shift into 2nd but


2nd gear is at the bottom of the shafts if the tranny is stacked in the mag side case. So it is controlled by the bottom fork. You should be able to shift it thru all the gears by turning the shift drum. Make sure as you shift the shafts stay all the way in the output shaft and idler shaft bearings. As you shift it, look for full mesh between the wheels(shaft that goes to the clutch) and the gears across on the output shaft.
If that all looks good, the shifter cluster(on the end of the shift drum, with the 2 dogs that engage the notched wheel on the end of the drum) may not be lined up properly. If the gears and shift drum are new, I'm thinking I'd look there first. Good luck!

Jun 11, 2011 | 2004 Yamaha YZ 125

1 Answer

I have a 2000 yz125 and when I shift into 3rd gear and give it gas it kicks it back down to 2nd gear. sometimes I cant get it to shift into 2nd gear. any ideas? thanks


I am presuming you are giving the gear lever a positive shifting motion when changing gears.
If the gear lever is completely tight on the gear shift shaft and the toe of the lever does not touch the engine sidecover when changing up, you may have a worn roller shift lever or loose screws holding this mechanism in place. See the exploded view diagrams of the SHIFT CAM and SHIFT FORK with all part names and numbers on the link below.
Cheers!

http://www.cmsnl.com/yamaha-yz125m1-2000_model10887/partslist/

Mar 04, 2011 | 2003 Yamaha YZ 125

2 Answers

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

I have a 2005 yamaha r1 .. some times when im down shifting I half to keep trying to down shift to get it to go into a gear mainly 1st sometimes other gears but not so much and same thing with up shifting...


Hi, Tom you may need a clutch adjustment for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. 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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Hard shift into first
2004 2005 Yamaha YZF R1 Service Manual R1 Moto Data Project
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Dec 31, 2010 | 2005 Yamaha YZF-R1

1 Answer

We replace new clutct lining but now its hard for gear shifting ,also in neutral


Have you tried adjusting the clutch as it sounds like it is not disengaging properly.
You may have a buckled clutch plate, or if you used pattern parts the combination of metal & composite plates may be too thick.
If there is a 'double' (sprung) metal plate you could try replacing it with a normal one

Good Luck
Hope this helps.
(If it does then please mark this as 'useful')
Ride Safe
Bike-Doc

Jan 29, 2010 | 2003 Yamaha YZ 125

1 Answer

Yamaha Raptor Shifting


Hi there,

Well, it seems like there is a problem with the shift return spring; it's on the backend of the gear, Seems broken or not attached properly, so first of all do this check.

Good Luck!!
Thanks

Jul 08, 2009 | 2005 Yamaha TT-R 125 LE

2 Answers

2005 yz 250 shifting problems


Well. I'm a motorcycle mechanic and my 2004 RMZ 250 recently did the same thing, The Shift forks inside my transmission actually bent and were not moving the gears as far as they needed to go and eventually got to where it quit shifting all together, recently also repaired a CR 125 That wouldn't shift at all and it was the shaft the shift forks go on was bent and hung the shift forks. Sounds like your shift forks are bent to me though.

Mar 14, 2009 | 2003 Yamaha YZ 250

1 Answer

2003 YZ 125 RUNS AND ONLY STAYS IN FIRST GEAR


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


please rate this solution

Feb 21, 2009 | 2003 Yamaha YZ 125

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