Derbi Terra 125

[Dandee]

Hi all, new here!

Looking for some help as I cannot figure out how the valve clearance works. Im unsure what bucket sizes I should buy, the bucket and shims are already connected.

The original specs for the exhaust are:
- 0.15 - 0.20mm
Then the intake original specs are:
- 0.10 - 0.15mm

My specs for the exhaust are:
- 0.13, right side
- 0.05, left side
Intake:
- 0.05 - right side
-0.06 - left side

The website I have been looking at for the bucket lifters is:
https://oem-bike-parts.com/en/parts/derbi/terra/2010/terra-125-4t-e3-2007-2009-emea-eu/tables-cylinder-head

Any advice would be appreciated! Thanks

[Nobby the Bastard]

You need to take out the shims and find out what sizes they are.
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[Dandee]

Hi, the shims won't come out of the bucket. They seem to be connected.

[Nobby the Bastard]

Yes they do. They are probably still stick to the top of the valves. They are unlikely to be in the buckets.

Use a magnet.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[Dandee]

Been told thay called shimless buckets

[Nobby the Bastard]

The buckets are the shims. Theey will have a size on them, probably on the underside.

If you go to the trouble of looking at the link you provided you will see that you can get them in various thicknesses.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[panrider_uk]

Welcome to the forum
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Current bikes: Hondas - Forza 750, ST1100A