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Gearbox 1973 Z1
Posted: Fri Jun 11, 2021 3:22 pm
Author: Cauf61
Hello
My gearbox refuses to shift in the upwards direction ( 2.3.4.5) Down to 1st and neutral is perfect.Clutch is new and working fine.
Anybody has an idea what the cause could be ? Is it possible to work on the gearbox "in frame" ?
Grts
Patrick Belgium
Re: Gearbox 1973 Z1
Posted: Fri Jun 11, 2021 3:33 pm
Author: z2.john
This is normal. You cannot shift up unless the output shaft is turning
Re: Gearbox 1973 Z1
Posted: Fri Jun 11, 2021 3:35 pm
Author: zed1015
That is normal.
It's called the positive neutral finder.
You can't engage 2nd and above until the bike is moving or you spin the back wheel while on the center stand.
Re: Gearbox 1973 Z1
Posted: Fri Jun 11, 2021 3:37 pm
Author: Cauf61
Ok I will do the test.
Re: Gearbox 1973 Z1
Posted: Fri Jun 11, 2021 3:38 pm
Author: Cauf61
Would be great if normal. :-)
Re: Gearbox 1973 Z1
Posted: Sat Jun 12, 2021 10:55 pm
Author: CAT3
There are three, (I think) ball bearings in one of the gearbox shafts, or the gear itself, that need centrifugal force to throw them out, which allows the second gear to move.
If you have a look at an exploded view of the gearbox parts you should be able to see these bearings in one of the shafts.
Re: Gearbox 1973 Z1
Posted: Sun Jun 13, 2021 6:13 am
Author: Cauf61
CAT3 wrote:There are three, (I think) ball bearings in one of the gearbox shafts, or the gear itself, that need centrifugal force to throw them out, which allows the second gear to move.
If you have a look at an exploded view of the gearbox parts you should be able to see these bearings in one of the shafts.
Thx