Gear return spring- 81 Jota

[blab]

Sounds like your drum is in the wrong position.

The marks line up in neutral and it selects all 5 gears, so I am presuming its right.

 

[Sir Sidney Ruffdiamond]

For me i did it in neutral -lined the marks up - made sure i could select all gears and adjusted the eliptical bolt so that the hooks were equidistance from the pin on the barrel 

 

[blab]

Yes,but my problem is I cant get equidistant, even at the upmost of the eccentric ! This is my problem.

 

[Grant]

Get the welder out then.

 

[blab]

Get the welder out then.

I cant weld,all I can do is bolt shit on and hope it works.

 

[Grant]

Well, take it to a welder and get a blob of weld tacked on, then file to profile to give the eccentric more operating range.

 

[Davo]

What happens when you turn the eccentric 180deg?

 

[Dellortoman]

What happens when you turn the eccentric 180deg?

What, do you mean with the bike facing the other way?

 

[bazzee]

Might be referring to the owner.

bazzee

 

[chrisk]

If marks are at 3:00 and 9:00 maybe you need to be one tooth out.

 

[blab]

If marks are at 3:00 and 9:00 maybe you need to be one tooth out.

They are, I thought that was correct.

 

[blab]

What happens when you turn the eccentric 180deg?

Minus clearance on down shift,even more clearance on upshift.

 

[chrisk]

They are, I thought that was correct.

Mine was at 3 and (drum mark at) 9, but needed to be 3 and about 9:30 (or was it 8:30, pretty sure it was 9:30ish), before all gears popped in correctly. Prior to that, I could shift up gears but not down. Either way, was not exactly 3 and 9, but 3 in neutral for sure.

 

[blab]

Well, take it to a welder and get a blob of weld tacked on, then file to profile to give the eccentric more operating range.
[/quote
Its a pity this wasnt done when I paid for a 34k rebuild.

 

[Davo]

Does it select all gears with no false neutrals when you are riding it? If so I wouldn't worry too much about the difference in shift length. It is a pretty agricultural shift compared to more modern bikes anyway.

 

[blab]

Im trying to get rid of the need to lift the lever over 75mm to up change gears.
Makes riding the thing a pain in the arse.

 

[Grant]

Something major wrong then.
Standard gear lever or rearsets?
Right or left foot shift?
Any chance of pics of the selector mechanism under the cover?

 

[Davo]

Im trying to get rid of the need to lift the lever over 75mm to up change gears.
Makes riding the thing a pain in the arse.

Over 3 inches 

Yep, I would want to get that sorted.

 

[sfcpiet]

Im trying to get rid of the need to lift the lever over 75mm to up change gears.
Makes riding the thing a pain in the arse.

Change the lever ratios on the outside.  Travel remains constant at the internal mechanism.

piet

 

[blab]

So why is it twice the travel on upchange compared to down change ?
The 1mm to 5mm discrepancy at the internal arm has to affect this.