Lambretta inlet manifold 34/TS1 fits rubber mounted 34-39mm Dellorto VHSB for TS1 engines, MB


This manifold was designed by us after we were having a lot of trouble with standard TS1 manifolds fouling the frame.

People also complained they had to cut a hole in their panel to get their carburettor to fit.

To solve the problem MRB made a whole new manifold which offers better frame clearance and is designed to make sure your carburettor fits under your side panel (on an Amal carburettor you still have to have a hole for the fuel banjo).

This manifold fits any TS1 cylinder (or Imola/Monza with slight modification) and fits 34-39mm VHSB Dellorto carburettors (that use the bigger 2 groove rubber).

It comes with an inlet gasket and 2 sets of fasteners to fit it with or without a reed packing plate.

If you are fitting this manifold with the standard TS1 reed block you will need to cut a small notch in the part that fits inside the reed block.

If you are fitting it with the Imola / Monza reed block you will need to remove the two stuffer fingers completely.

Lambretta inlet manifold 34/TS1 fits rubber mounted 34-39mm Dellorto VHSB for TS1 engines, MB

£ 65.46
Price: £ 54.55 Ex Vat

Temporarily out of stock

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  • Designed by Mark Broadhurst.
  • Cast in the UK.
  • Machined in house.


  • Fits all carbs.
  • Fits small or large block casings
  • Carbs clear all frame, engine and frame parts.
  • Designed to fit all Lambretta cylinder kits.
  • Designed to match all types of inlet ports.

Development History

  • Mark Broadhurst has designed and manufactured more inlet manifolds to suit Lambretta scooters than anyone else.
  • Developed over time to suit various carburettors used on Lambrettas for different applications.
  • Made in England and machined in our own engineering department.
  • Designed to clear all frame, engine and body parts.
  • Reshaped to clear panels.

Reasons to Buy

  • Tried and tested.
  • Easy to fit.
  • Fits many carb applications.
  • As used by most dealers around the world for over 20 years.


  • Either use an inlet gasket or Silicone sealer to seal the manifold.
  • Match the inlet manifold to inlet port and inlet port to inlet manifold for better results.
  • Tighten inlet screws together.

Fitted Pictures ( 2 )


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Questions? ( 2 )

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Richard H on 24 Mar 2016 asked "If I use this in my series 2 with a reed packer plate and series 3 rear shock, will I still need to use eccentric frame cones?"

MB Scooters Ltd replied: Should fit no problem, occasionally you may have to trim the inlet manifold. I've have never used eccentric cones on any rebuild in 30 years!

Fuzzy on 27 Dec 2008 asked "I have a question about "Carb inlet manifold 34mm Dell'orto Ts1 MRB" HI MARK I WANT TO PUT A 34MM DELORTO FLATSIDE ON TO A 240 MONZA SET UP WOULD I GET AWAY WITH USING THIS MANIFOLD."

MB Scooters Ltd replied: As the information says this manifold fits the Imola and Monza cylinder.

But you will need to modify it a little depending on what reed block you are using.

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