Sunday 19 October 2014

Yamaha YZF R125 clutch problems



Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure   
Yamaha YZF R125 Workshop Manuals on Ebay UK 


Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure


Clutch slipping     , could be worn plates  , or incorrect adjustment or fitting of components and cables , weak clutch springs ,

Clutch is dragging , engine idle speed too high , broken springs , clutch drum basket damage ,
plates warped or damaged , incorrect spring torque or cable adjustment .



Testing the clutch plates 

First lay the plates on a perfectly flat surface hear i use a tile , i would normally use
an engineers table .

you are going to probe around the outside diameter with your feeler gauge (0.20)  ,
if the feeler gauge is able to go beneath the plate its warped to badly to reuse



Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

You need to measure the clutch spring length to ensure they are in the correct range to out of range them replace as they will not do the job expected of them .



Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

also measure for wear on the friction plates replace any out of
tolerances do not cheat make sure you replace as loss of clutch 
is not a great idea on a ling bike ride .

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure


Here i am testing for warping of any of the clutch plates 

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

check the edges of plates and basket too 

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Yamaha YZF R125 clutch common problems rebuild strip inspection test and measure

Another place that can develop judder or knocking on these clutches is the rivets on the drive gear , they become lose and can cause judder or knocking.


Motorcycle clutch juddering ~  Anti judder spring seats

Motorcycle clutch juddering ~  Anti judder spring seats




Yamaha YZF R125 clutch removal

Beware of this ball bearing for the clutch actuator pin 

Yamaha YZF R125 clutch removal


How the clutch works on a YZF R125






No comments:

Post a Comment