Engine casing LML SE – fits Vespa PK125 big transfer ports

On offer: this engine casing for Vespa smallframe is very high in demand

We were lucky to coincidentally get hold of a few of these legendary LML SE engine casings.

Available in two versions: with e-start preparation and without e-start.

• Engine casing -LML SE125 fits Vespa PK125 XL2, PK125 ETS, big transfer ports – w/o e-starter
• Engine casing -LML SE125 fits Vespa PK125 XL2, PK125 ETS, big transfer ports – with e-starter

Much bigger transfer ports by standard

The LML SE engine casing is actually comparable to the engine casing of a Vespa PK125XL2. With only one difference: the transfer ports are much bigger than in the Piaggio engine casing.

Replacement or perfect base for tuning

Easily spotted: Both ducts at the sides offer plenty of space for further amendments, which makes it easier to fit strong racing cylinders.

We demonstrated this with a Parmakit SP09:

You can see that there is space for further amendments of the cylinder base: Parmakit-base gaskets on the LML SE – smallframe.

You will only have to invest a little time to perfectly fit such a cylinder to the transfer ports – unlike with a popular engine casing by Piaggio.

3-stud intake

The SE engine casing has 3 intake studs.

The sealing surface of the rotary valve with its 42mm length is rather large, which makes the engine casing an interesting option as rotary valve for performance oriented engine concepts.

Stable bearing seats – allow better crankshafts

You will find the bearing seat and the oil sump for the NBI needle bearing on the ignition side, as usual for PK XL 125. So you can directly use a stable PK-ETS crankshaft with 25mm bearing seat.

The engine casings were developed for the gear selector fork of a XL2 with “one cable system”.

You would like to fit the casing in a Vespa with the usual 2-gear change cable system? You will need a conversion set.
Thanks to its precise machine production in small batches, shifting gears is more precise, which is the big advantage of this solution. The choice of high quality material additionally prevents wear.

Fitting smallframe crankshafts

Rotary valve

These crankshafts fit (rotary valve, from 125cc):

• Rotary valve, Standard PK ETS, 51mm stroke
• Rotary valve, Racing PK ETS, 51mm stroke
• Rotary valve, Standard BGM, 51mm stroke

Reed valve

Crankshafts for engines with reed intake and higher engine displacement:

• Full circle, BGM PRO, 51mm stroke, 105mm conrod
• Full circle, BGM PRO, 54mm stroke, 105mm conrod

Bearing sets and gaskets

A fitting ball bearing set comes with flywheel side NBI bearing.

Oil seals and gasket sets are also the same as for the Piaggio ETS version.

• Oil seal drive side
• Oil seal flywheel side
• Oil seal rear hub
• Gasket set PK125

Gearbox oil for Vespa

SAE30 – gearbox oil for Vespa engines
BGM PRO STREET gearbox oil SAE30* – API GL3 traditional monograde oil as stipulated by Piaggio for all classic Vespas. Perfectly covers all ordinary load conditions and is ideal for any engine, be it mass produced or high end tuning.

• Mildly alloyed, perfect fit for oil bath clutches
• Lubricant film with good adherence, pressure resistant
• Excellent oxidation stability
• Anti-wear

ADVICE: Wear workshop gloves

Fine knit gloves BGM Pro-tection

The bgm PROtection fine knit gloves are the right choice for the workshop and your toolbox. They are 100 % nylon fine knit for a perfect fit and a high wear comfort. The breathable back of the hand gives a good climate. The inside hand and fingers are protected against dirt and oil with a PU-coating. The gloves fit like a second skin and the feel of the surface isn’t restricted in any way.

• 100 % Polyamid black
• Black PU-coating
• EN388, Cat. 4 abrasion resistance
• EN388, Cat. 1 cut resistance
• EN388, Cat. 3 tear propagation load
• EN388, Cat. 1 puncture force
• Fine knit, seamless
• Perfect fit
• Protected against dirt
• Feel of the surface isn’t restricted
• Washable
• Paired in polybag