Author Topic: CR125 gearbox floats  (Read 1198 times)

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Offline Freakshow

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CR125 gearbox floats
« on: October 13, 2010, 12:37:46 pm »
Have a 74/75  Cr125 gearbox that has change issue. it cant seem to push a throw some times.

GEar box has been apart and all bits checked only thing we can find is the idler gears have play and it would seem when under load the trans is moving out of alignment and then making it hard to get into a gear. ( being in a angle/twist)   

Can these what appear to be 4 idler gears on the shaft ends be Rebushed to take out the slop or do you need to get new 4 new gears ?? is this a common problem and whats the fix...... or who can do the fix/ rebush

BEfore you ask : no the fork and selctors are not bent, no there are no chips in the drum, etc etc the movent is in the Shafts and yes it has new case bearings through out.
« Last Edit: October 13, 2010, 12:44:32 pm by Freakshow »
74 Yamaha YZ's - 75 Yamaha YZ's
74 Yamaha  flattracker's
70  Jawa 2 valve speedway's

For sale -  PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff

Offline bazza

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Re: CR125 gearbox floats
« Reply #1 on: October 18, 2010, 05:19:36 pm »
any MT125 bits in there? Cant remember from 74 when i raced those do they have indents in selector
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Offline Freakshow

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Re: CR125 gearbox floats
« Reply #2 on: October 18, 2010, 05:22:10 pm »
Not sure.  pity sure its how it was in 74/75.
Robbie H,  do you have any idea whats in that box ?
74 Yamaha YZ's - 75 Yamaha YZ's
74 Yamaha  flattracker's
70  Jawa 2 valve speedway's

For sale -  PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff

Offline cr4ever

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Re: CR125 gearbox floats
« Reply #3 on: October 18, 2010, 06:14:36 pm »
Don't know, only bought that one this year...could have anything in it but was supposed to be all original CR125M1 from 1975.....

Offline Freakshow

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Re: CR125 gearbox floats
« Reply #4 on: October 19, 2010, 02:40:40 pm »
OK so sounds like where drawing blanks on here rob.  Either need the 4 new wheels or find someone who can bush back the old ones into spec....
74 Yamaha YZ's - 75 Yamaha YZ's
74 Yamaha  flattracker's
70  Jawa 2 valve speedway's

For sale -  PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff