125 Aurea/Bronco Questions...

[Aurea1961]

Hello Together!

I'm just about to restore an old Ducati Aurea 125 from 1962. These Bikes are rare and it's not quite easy to find infos and parts for it.

Just reassembling the engine and in the only document I have, they write about a valve claerance of 0,05 mm (cold)
That seems a bit little to me?
Maybe someone here knows ...?

And maybe someone here knows the tightening torque of the zylinder bolts for the bike?

Futhermore I'm looking for a speedo drive for the Aurea (15 mm diameter for 17" wheels).



Thanks & Best Wishes!
Jo

B0000209.jpg

[mrkprsn]

My book for the other 125 models (not bronco) says .05-.07mm for valves and I torque my head bolts to 15 ft.lbs.

[Aurea1961]

Perfect, Thanks!

[ecurbruce]

Hi Jo,
I have this piece, the center bushings is missing, but if you need gears, these are useable.

20260131_122238.jpg

usable.

Let me know if this is your part
Bruce

[Aurea1961]

Hi Bruce

thanks for your message. Unfortunately I need the inner part of the drive, bacause my one is broken.

Thanks
Jo

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[ecurbruce]

Hi Jo,
The inner part is what I have, the small center bushing shown in your photo is what is missing in mine.
If you want it, it's yours...

20260201_082230.jpg

Thanks, Bruce

[Aurea1961]

Oh, that's fine!
How much do you want for it incl. shipment to Germany?

[ecurbruce]

Jo,
I'll check shipping and get back to you.

Bruce

[ecurbruce]

Jo,
I sent you a PM

Bruce