Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models
by citydaz » Mon Nov 29, 2021 10:44 pm
Hi all,
just wondering if a series 1/2 air scoop would fit on a GP?
Cheers
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citydaz
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by dickie » Tue Nov 30, 2021 10:22 am
I can't see why not. A series 3 scoop fits on series 2 and I can't imagine any reason why the opposite wouldn't fit.
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by landybretta » Tue Nov 30, 2021 11:15 am
I'm not an expert but will that not restrict the airflow.
What carburettor set up are you using?
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landybretta
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by hullygully » Tue Nov 30, 2021 12:00 pm
landybretta wrote:I'm not an expert but will that not restrict the airflow.
What carburettor set up are you using?
+1
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by Storkfoot » Tue Nov 30, 2021 12:12 pm
I have a S1/2 air scoop on a GP. It fits fine. I would add that I have a big air filter protruding from the sidepanel though

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Storkfoot
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by citydaz » Tue Nov 30, 2021 8:50 pm
Thanks for the responses.
Im putting a GP scoop on each side panel with a hole for air flow just behind the grilles.
Wasnt going to fit a GP scoop under the seat as there isnt enough head room under my Rimini sport seat, even with the thinner type of series 3 scoop.
Was planning to use a series 1 scoop from India as they appear to be less high.
not using the airbox.
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citydaz
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by Warkton Tornado No.1 » Tue Nov 30, 2021 9:10 pm
There are replica glass fibre air filter scoops available. I would suggest that linishing the base of one would reduce the height in no time.....
If your quest for more air is for cooling, you can source small 12 v fans (PC cooling type) to drag the air in. Don't forget that any additional air needs to have an exit as well, hence the holes/cut-outs on scoop cooled full frame Lambrettas that race. A RH panel often will have been cut for a rear set brake even though the pedal may be in the conventional position. Then there is the Serveta tool box lid, highly sought after....
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Warkton Tornado No.1
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by landybretta » Wed Dec 01, 2021 10:33 am
citydaz wrote:Thanks for the responses.
Im putting a GP scoop on each side panel with a hole for air flow just behind the grilles.
Wasnt going to fit a GP scoop under the seat as there isnt enough head room under my Rimini sport seat, even with the thinner type of series 3 scoop.
Was planning to use a series 1 scoop from India as they appear to be less high.
not using the airbox.
I purchased a Rimini sports seat and had the same problem.
I fitted one of these which just allows the seat to lock in place.
http://www.scooterrestorations.com/lamb ... hed-alloy/
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landybretta
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by missing lynx » Wed Dec 01, 2021 11:44 am
citydaz wrote:Thanks for the responses.
Im putting a GP scoop on each side panel with a hole for air flow just behind the grilles.
Wasnt going to fit a GP scoop under the seat as there isnt enough head room under my Rimini sport seat, even with the thinner type of series 3 scoop.
Was planning to use a series 1 scoop from India as they appear to be less high.
not using the airbox.
If its under the seat why not just leave it off? Then you have a handy hole to rest a 2 stroke mix jug in
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missing lynx
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by citydaz » Wed Dec 01, 2021 11:34 pm
I have bought a series 1/2 scoop from india for £7.
If it fits great, if not i will fettle it down to 25mm in height, which is the head room, by cutting it at an angle then then placing a rubber packer at the back behind the holes.
If it does not work then in the bin it goes!
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citydaz
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by citydaz » Mon Jan 03, 2022 9:26 pm
Air scoop arrived from Delhi just before Christmas.
Fits fine under the seat and the holes are in alignment (just!) - problem solved.

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