SLUK XL5 Screen For LI Series 2 & 3 Lambretta

SLUK have released number of scootering related products and one particular item I’ve been after for my LI was a Coast 2 Coast screen. Unfortunately these haven’t been made and so it was a case of going without as nearly every screen for the LI series 3 wasn’t something I was prepared to put on my Lambretta.

Now they’ve just released a screen for the Series 2 & Series 3 LI Lambrettas and it’s called the XL5. SLUK say that it was inspired by the original café racer Biemme screen from the 1960’s, but with improved changes.

It comes in three parts, plus the fixings and a Hi Torque Fastener, (just like a Jubilee Clip, but Hi Torque)! All you need to do is bolt the screen to the main part or fairing with the metal band that adds strength as well as adding to the look.

Fitting is easy and the best part of it is with the Hi Torque fastener, fixing and removing the screen to carry out any under the headset maintenance means there’s nothing to it. All you use to attach to the headlight is a socket or a screwdriver.

SLUK do make a few points to note regarding fitting. They suggest putting insulation tape, Gaffer tape or 3M tape over the fixing area to help give a good fixing for the

fastener and also serves to help protect your paintwork. This makes sense, because the inside of the XL5 screen that will grip the headlight rim is smooth as is most headlight rims.

It is pointed out that the screen may make contact with legshield beading and may need trimming. My screen didn’t touch my legshield beading, but I have a disc brake with a reservoir on the handlebar and so the edge of the main part of the screen needed trimming by a few millimetres. SLUK say the main part of the screen is made from tough ABS plastic but it was easy enough to trim down with just a file.

I’d like to add that this isn’t bad workmanship from SLUK. As a Lambretta owner fettling and adapting things to fit is a common occurrence.  The standard Lambretta fit is hard thing to find and there’s nearly always an exception to standard with most Lambrettas out there.

Thirdly, the headset screws we sometimes use can have thick heads but SLUK supply thinner button head screws and make fitment of the screen better.

The last point of interest is with security of the fitting. SLUK say that the user can drill holes in the fastener so adding fixing points and making it harder to steal. 

It comes in a choice of white, black, silver and carbon effect.

I am happy with the screen. Quality is good and I’m confident with the fixings. I’ve a GammaTech Speedo that stands a bit proud of the headset and I’m adding a Sat Nav shortly, so it goes to helping with the profile of my Lambretta.

One final point. This doesn’t mean I’m going Mod and spending weekends at B & Q. I won’t be adding a target sticker on the screen.

SLUK Website

Direct Link to XL5 Screens

Thumb Choke & GammaTechnology Speedo

Two great ways to save an engine.

Last week I put the GoPro on to make a short video of Darrell Taylors Thumb Choke & GammaTechnology RTSE1000 Speedo in use and how it can quickly save a potential disaster.

If you watch the EGT temperature gauge on the top right of the speedo,  it begins to rise above 600 C. So to bring the temperature down quicky, the thumb choke is pressed. With a standard Lambretta choke this is all but impossible.




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Spare Fuel Can

I only ever ran out of petrol once before. therefore I never thought the need for a spare fuel can. Last month I ran out and had the push of shame taking the Lambretta to the nearest garage. So now I have a spare 2 litre can. It came with a handy spout to lesten spillage when filling your tank. The dimensions are Height 270mm width 147mm and depth 80mm.


Engine Build #1

Back in 2004 I started a 225 engine for the Lowrider. It’s been run in the Lowrider the LI and the GP. It’s currently being set up as a spare for the LI. It’s a V1 Mugello Stage 5 Tuned by Cambridge Lambretta Workshops.

Here’s some pictures of the build.

The polished casing

The Mugello kit after it was tuned.


A DJ pipe (copy). I sent this to Jahspeed to fit a slip joint


I tapped out all the threads on the casing before Inserted the studs.

Fitting the mounts by heating the casing first.

Put in the crank and then fitting the front sprocket.

Got this Layshaft from Cambridge Lambretta Workshops. Extremely good quality.


In went the LI150 Gearbox


The clutch in the Mugello 225 was just a standard 4 plate version that never let me down.


Top end on and setting the correct squish.


This was the engine finished. The DJ copy exhaust eventually disintegrated. I then used a JL3 from Cambridge Lambretta Workshops. I was due to take the exhaust off for an overhaul, but a trip up to North Belfast and some very rough wrecked the u-bend. So I then went on to use a Taffspeed copy. It lasted better, but eventully it cracked around the u-bend.

I’ve no idea how many miles I’ve done, but it’s was used daily and on rideouts and rallies. I’ve just rebuilt it with a AF Race Cassette Clutch and a Stainless Devtour.





Gamma Technology Digital Speedo


In my quest to find the perfect speedo I’ve been on a journey that has seen the standard, the copy, the MB, SIP, Trailtech and even a Garmin 305 on the headset of my Lambrettas. All have had their turn. Some with more success than others, some with no more worth than to fill a hole in the headset.

So, moving on to 2016. I’m almost resigned to going back to a stock speedo with the wavy needle. I had seen the Gamma Technology speedo on social media but first impressions I wasn’t sure. so I decided to investigate further. Fast forward a couple weeks and after studying the Gamma Technology website and reviews on forums I went ahead and ordered the RTSE1000.

Anthony Tambs is the man who does the electrical wizardry. He answers the questions and is happy to help.


Installation is easy. The one thing you might want to order with the speedo if you plan to fit it on the headset is a speedo blanking plate to fit the speedo. I made my own. I also fitted a grommet and some black mastic to fill te whole in the blanking plate to help keep any water and dirt out.


The EGT wire has a threaded end. So the hole I already had in the exhaust was tapped out and bolted on 100mm from the piston skirt. I used the spark plug connector for the CHT guage. I could have used the fixings to tap into a fin, but chose not to. The wire for the rev counter was wrapped around the HT lead.

Installing and wiring up is pain free and by far the easiest out of any digital speedo I’ve had. I say this with confidence as someone who has a phobia with electrics. The wires are colour coded, easy. The speed sensor bolts onto the main wheel nut and the magnet is glued with a strong bonding glue like araldite on the hub.


The RTSE1000 has a distance guage which acts as Anthony put’s it a “Pseudo Petrol Guage”. It’s a bar graph that has a distance that can be set to a distance of your choice. The petrol guage I normally use isn’t working at the moment, so this helps.

There are so many customisable options available. From bargraph colours and transition points and transition colours to main diplay. The list is almost endless, but you can use these as little or as much as you like.

It will give peak values of speed, RPM, CHT and EGT. All can be reset with the touch screen see the video below
Accessing Set Up Menu Video Link

The speedo display bargraph colours can be customised. the video below shows the display menu.
Colour settings for RTSE1000 Video Link

Daytime reading of the speedo is excellent with no bother in bright daylight. Nightime riding was no problem at all. Easy to read. You can even have display with auto dimming when you connect the yellow wire with the switched side of the lighting. I have my lights on day and night, so I chose not to use this feature, but the brightness of the day time and night time modes are configurable. This means keeping an eye on temperatures as well as speed is a whole lot better.

(The speedo was angled away from the camera so it doesn’t show how good it really is)
Speedo Daytime Video Link

Speedo at Night Video Link

Accessing speedo set up menu and configuration RTSE1000
Accessing Speedo Set Up Menu Video Link

This is more than a speedo, It’s an engine management tool that is easy to read and use day or night. With this you will be able to see how your engine is performing and watch out for any impending disasters. A responsive touch screen makes sure there’s no push button combinations to get to certain readings. I’m delighted to finally have a speedo that does all the things that I want and more. Daily use will put this through it’s paces and I’ll give an update within the next 12 months.

Anthony has more plans for the Lambretta including new stator plates and external pick up.



Thumb Choke

I’ve always disliked the standard choke set up on the Lambretta and often resort to using the flip-up choke, but this isn’t always feasible, so back in 2012 a friend, Jarv from Norwich showed me his thumb choke set up on his Lambretta Special. I already found a lever from a lawnmower, but wasn’t happy with it. Then I saw Darrell Taylor from Taylor Tuning had built a thumb choke. Everything was with the kit, cable , fixings and lever. So I went with Darrell’s kit.

It works perfectly and because of its position it can be safely used on the go to richen the mixture if the engine starts to overheat.

Update 16/11/16: I was out on the LI today and had a chance to run it over half throttle. The EGT temperature was climbing quite high over 600c so pushed the choke in with the thumb and the temperature dropped very quickly So I was able to keep the engine cooler. Without the aid of a EGT gauge and thumb choke I could quite probably wrecked the top end today. So, I will go over the jetting and check for any issues with the engine over the next few days.

Below is the information Darrell gave regarding the thumb choke.

Remote handlebar mounted choke with lambretta fixing kit

Aluminium choke lever and clamp assembly
Stainless laser cut 6 point adjustable fixing plate
Stainless button head fixings
Best quality extra long teflon lined choke cable
Stainless solder less cable nipple
Fitting/tuning guide

Around 12 years ago I started racing 2 strokes again in endurance racing events that I once did at 17 many, many years ago, I always used remote handlebar chokes as they are a device I used to great effect as a tuning tool.
Having dialled in the jetting either on the dyno or at a previous track with ever changing conditions and in 6 hr endurance racing events the jetting changes considerably, if it changed for the worse you can end up running lean, so having the handlebar choke allowed us to richen up the jetting and cool off the motor when temp rose too high to avoid engine failure.
prior to a race in practice I would engage the choke to see if it 4 stroked(too rich) or if it went a bit better with the extra fuel (too lean/or too hot) depending on how it behaved along with barometric checks I would make jetting changes to get the best out of it, with a marked off throttle the test can be easily applied at different throttle positions.

Uses and Benefits
When fitting to a classic scooter there are various uses and benefits that can be had that when the choke is mounted in its std position you cannot capitalize on
Anyone who has tried using a std choke whilst riding will at least once have found themselves either in the gutter or on the wrong side of the road

1 To help set up jetting.
2 If you suspect a fault, faulty ignition, dodgy fuel, air leaks, blown gaskets, blocked jets to richen the jetting and make the engine safer.
3 Use on extended distance hard riding to cool the motor/enrichen.
4 easy starting adjust throttle and choke instantly.

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