Question about 2003 Yamaha YZ 125

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I have a 1990 yz 125 my clutch wont grab at all

I have a 1990 yz 125 i put in new fibers and steel plates i put it back to together correctly now it wont grab at all

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  • keith_cradle Oct 10, 2009

    wat do u mean the only thing inside the basket was fibers and steels now i looked at a diagram that said i was missing a clutch boss and some kind of spring but those wernt in the bike when i took it apart before i took it apart it worked fine

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Did you torque the spring up when you put them in and did you put the push rod in the middle |???

Posted on Oct 08, 2009

  • ollie reece-jones
    ollie reece-jones Oct 10, 2009

    HMMM IS THERE A NAME ON THE BASKET LIKE MITAKA OR WISECO OR PROX AS IT SOUNDS LIKE YOU HAVE AN RACING BASKET GET BAXCK TO ME

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I have a 1991 yz 125 and the shift shaft was stripped so i replaced it but now that i put it back together the clutch isnt working right, when i hold in the clutch it wont engage. I filed down the clutch...


Hi, Jarhead456 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.
How to install Brand New Clutch on 2001 Yz125
YZ125 Part 11 2 Stroke Installing Clutch and Repairing Clutch Basket
YAMAHA YZ125 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Jul 27, 2011 | 2003 Yamaha YZ 125

2 Answers

IVE PUT MY CLUTCH BACK TOGETHER AND ITS WONT WORK


have you checked that the clutch plates have been placed correctly and that the cable has the correct length, It should have a max of 5mm Slack so it fully dis-engages when let go
Also if clutch plates are not correct it wont work, you should start with a friction plate with odd groves, Then steel spacer, then next friction plate till you end up with last plate being a friction plate The last plate is also a plate with odd groves/design unlike the plates in between which are all similar

Jun 19, 2010 | 2003 Cagiva Mito 125 Evoluzione

1 Answer

How to put a clutch together on a 1999 yz125? how do you put a clutch together?


Go to www.babbittsonline.com/parts/viewbybrand/parts.aspx there you can see an exploded diagram of your clutch. Note that you start with a fiber friction plate, then a metal clutch plate, then a friction plate etc... ending up with a fiber friction plate. Be sure to unbend the locking tab on the hub nut before trying to remove the nut.

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Feb 12, 2010 | 2003 Yamaha YZ 125

1 Answer

I have a yz 125 with a rebuilt motor i put the nuw motor


A very common problem with wet clutches is that many folks do not use the correct oil. The plates in the clutch are sandwiched under spring pressure and there is nothing in the mechanism to release them, so if the oil creates too much "stiction" then the plates can become suctioned together.

I suggest first trying an oil change using an oil designed for use with wet clutches. Then, get a running start, hop on the bike and drop it into gear. Then pull in the clutch and while holding the clutch lever in, rev the motor to break the plates loose. If this fails after a few attempts, your plates could be rusted together - possibly from a leaking waterpump seal or a ride through deep water. A simple tear-down of the clutch will tell the tale and this can be done without buying any parts if you are careful.

Nov 08, 2009 | 2003 Yamaha YZ 125

1 Answer

Yz 125 1990 clutch spring diagram


www.bikebandit.com
It's one of the few that has a diagram.
Not sure what you mean by anti-rattle? The springs are for the pressure plate, and allow the clutch to grab, so you can go.

Sep 13, 2009 | Yamaha YZ 125 Motorcycles

1 Answer

1991 rm 125 clutch springs torque


The clutch springs are not the problem. Check to see if all parts were installed as shown below. The clutch plates alternate Fiber/steel/fiber/steel, starting and ending with a fiber. Be sure the teeth on the clutch rack are pointing to the rear.

A “very helpful” rating for this answer? Thanks!

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Jun 27, 2009 | 2003 Suzuki RM 125

4 Answers

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

Apr 21, 2009 | 2003 Yamaha YZ 125

2 Answers

How do i aline the cluch plates on a dt125r


Hi Ma_beveridge,

I guess ,since its 10splines you ought to fit in 5 steel plates ,just make sure that no steel plates come into contact with each other except with the clutch plate in between them.

Hope this will help .

GOOD -LUCK.

Knight

Feb 01, 2009 | 2000 Yamaha DT 125 R

1 Answer

Clutch basket


but it was not as deep as the original. Did the older bikes have a sallower basket. Mine is a 2005 and holds 8 fibers and 7 steel plates. I can't find any partd lists for the older bikes on the web. First a question. Are you using the original clutch fiber plates and friction disks or, did you get a new pack of plates and disks to go with the new basket. I'll explain my question below. The clutch on the 125 is sort of touchy. I tried various configurations, mainly using all steel drive plates, instead of the combination of steel and aluminum. I was only able to make it work properly using the OEM GG configuration. The 125 uses a different clutch than the larger bikes. (The 200's clutch basket has a different gear on the back, but otherwise it's clutch is the same as the larger bikes.) Make sure your replacement clutch disks & plates are not for the larger bikes. (I recently saw an ebay seller's auction that claimed to be a clutch rebuild kit for the GasGas bikes. It only had 7 friction disks. ) The original clutch for the 125 Gasser had a combination of aluminum and steel drive plates. The friction plates were all the same. The 2005 parts book lists them as being 3 iron disks and 4 aluminum disks. (In my memory, I thought it was 4 steel and 3 aluminum.) If you download and look at the parts book, http://www.gasgasmotos.es/rcs/manual...emotorec05.zip , the 125 clutch is on one of the last pages of the book. (page 48 of 50) BTW. I still have a new OEM GasGas 125 clutch pack in my stock; if anyone is interested. (side note: The clutch push rod for the 125 is only a few dollars. The clutch push rod for the larger bikes is in the $35 range.),,,

Nov 10, 2008 | 2007 Gas Gas EC 125

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