Top

How to go faster

performance prices are here.

We are always asked to price how much an engine would be, how much for this or that. Truth is every time we take a new delivery of parts what ever they are, we check and adjust our prices up and down, so we can never say it will be X and set it in stone. So, to help us to help you, we have linked every part we suggest here on this page to our online shop. CLICK any part, and it will be added to a list that you can either just use as a price guide, or you can go on and purchase if you wish.



Once you have selected a part, simply click back on your browser to return to this page.

Where you see the trolley sign, this will add many parts to your list in one go saving you time and effort. If you click lots of different packages, you will need to delete any you have already put into the list or parts will be duplicated.

To build a good reliable fast engine, first things first you need to make sure the components in your engine can cope. Below is the basics we would suggest you need, you may need more items, you may need less, each engine is different
12V Varitronic kit (G.P.) x1
Or budget item
SIL electronic if on a budget)
Varitronic bracket
or
Electronic bracket
Engine mount long x2 Oil plate flange screw x4
Crankshaft GP x1 Engine oil seal kit x1
Engine bearing kit x1 Strengthened chain guide set x1
Clutch kit complete x1 Tab washer clutch nut x1
Chain x1 ST90
Gear selector spring x1 Gear selector ball x2
Gear Selector x1 Extra mag seal
Chain case Gasket Drive plate gasket
Gasket for mag housing x1 Fuel tap fast flow x1
1) To add all of the parts above with one click, to a price list with an option to buy :-
                    Choose one of the following :-

Buy / price
with NO igntion system

Buy / price
with Varitronic

Buy / price
with Electronic


So with the parts listed to allow your engine to cope, you now need to choose which cylinder kit to go for. Further down we have made a chart of what each kit does, with this and that set up, and what you can expect. But to carry on and choose your carb and exhaust, you should consider what each kit does at this point

CLW supply Mugello, Imola and Monza cylinder kits for proven speed and reliabilty

  • Mugello kits are probably the most popular on the market today, and with good reason. They give excellent all round performanace, as well as greatly increased reliabilty. Then run carburettors on the standard side of the engine, allowing filters to be run through the original box, or by remote filter. You can also keep the battery tray, and run standard looking or performance exhausts.
  • The Imola and Monza kits give maximum performance, both kits feature reed valve induction and are suited to larger carbs and exhausts.

CLW recommend four types of performance exhausts.

Exhausts are the biggest controlling factor on any two stroke engine, and can affect many aspects of you scooter, not just speed. A badly matched exhaust to your set up could loose you power, cause heat build up / seizures, affect fuel consumption amongst other things. In most cases you probably want to match the exhaust to the kit you choose, for example its not really worth putting on an Ancilloti to a powerful Monza kit, as it just doesnt make use of the power.
We have tried almost all exhausts on the market, and after many tests on our various scooters we only sell the ones we are happy with in terms of performance and quality. There are many exhausts out there on the market, and many work in differing ways, some made very well, some poorly made, some work well, some kill your scooter both in terms of speed and reliability.

  • Ancillotti this is a box pipe, by that we mean if you look at the original Lambretta S3 exhausts, they have an oblong exhaust, a box shape. The Ancilotti makes good low down power, but also does rev on a fair bit more then Clubman or big bore type exhausts. Although the exhaust does give good power, because of its original box design, it is not as efficient as an expansion type exhaust, but it is ideal for keeping original type looks. Delivers its power low down, and is ideal for a touring set up.
  • GoriVery similar to the Ancillotti above in terms of this is a box style pipe, but makes the most out of all of this style of exhaust on the market. The Gori does behave more like an expansion in that it allows more rev on, some owners do give feedback that they are noisey.
  • JL3 / JL Road. Works in exactly the same way as the above Ancillotti, but gives you more power. An expansion exhaust is without doubt the easiest way to gain power and speed, of course as long as its a good exhaust!. Available in straight stick out design, or curly design, where the exhaust tucks back underneath. There is no adverse affect to ground clearance on the curly pipe. Peak power is made from around 3 to 4,000 rpm, up to around 7,000 and is ideal as a touring / cruising type set up.
  • CLW Race. is an exhaust that allows more power and revs. How ever this is made higher up in the power band, and thus although you get more power and speed, this would be in a form of a power band that tends to start at about 6,700rpm, and continue to 9 to 10,000, ideal for a fun racing around on type power delivery. Available in straight stick out design, or curly design, where the exhaust tucks back underneath, and as with the road version there is no adverse affect to ground clearance on the curly pipe.


Carburettors
Choosing the correct size of carburettor for your set up is not as vital and jetting the one you do choose correctly. Equally the air induction is a very important factor, we all fit fast flow fuel taps, but totally neglect the air intake. The original air intake system on a Lambretta is very restrictive when you start to push the performance of your Lambretta. Think of the air box as a storage box for air, it simplyholdnot large enough to holf the volume of air a well tuned engine needs. Sure you can make it work and run well, but you are restricting your performance. By far the best choice of filter on tuned scooters is our remote air filter option, this have been carefully designed not only with excellent materials for the free flow of air, but to give a large enough volume area to give the best possible performance.
Roughly speaking we recommend the following carburettors

Mugello
  • Original looks if you want to keep the original looks, best option is the SH22, or 22mm Jetex, but use a high flow filter in the air box.
  • Modern carb but still run it through the air box, PHBL 25mm. Although this type of carburettor does not give any more performance over an SH2/Jetex, it is a good modern replacement for worn carburettors.
  • Best performance with Ancilotti or clubman type exhaust we would recommend the PHBH 26mm carburettor. Although this can be made to run through an air box, in truth it is a waste of time as the large size of the carburettor body makes this more awkward. The larger body of carb is much better suited to being run through our matched remote air filter system, as this provides much better air flow thus giving better performance. The difference between running through the air box, and one of our remote filters can be 1-3hp depending on your set up.
  • Best performance with an expansion exhaust we would recommend the PHBH 30mm carburettor with PowerJet. Please read the text in the bullet above regarding running the larger PHBH through an air box, or remote filter system


Imola / Monza kits,
  • Best performance with Ancilotti 30mm Dell'Orto PHBH
  • Best performance with an expansion Dell'Orto PHBH 30mm, or for the ultimate gain in performance you would use the PHBH powerjet.


In the chart below, we have listed all the possible combinations, what you can run with them, and what to expect.
It can be quite confusing with all the possible options, but you need to ask yourself two simple questions.

  1. Is original looks more important to you
  2. Is the best possible performance more important.
Options for 125 / 150 / 175 engine cases
Carb Exhaust Good for Comments Buy / Price

The Mugello kit are more suited to all round use, give good power and are suited to many different combinations of carb and exhaust. There are four versions 186cc, 192cc, 198cc, 205cc. The 186 and 198cc use standard 58mm stroke crankshafts, the 192cc and 205cc kits must use a 60mm stroke crankshaft.
Standard 18 / 20 / 22mm carb (including Jetex) Standard, big bore / clubman / Ancilotti type exhausts, not really recommended for expansions. 55/60 crusing
60/65 top speed
We no longer suggest using the new Mugello cylinders on standard carburettors, including Jetex types as they are not able to offer suitable fuel flow for performance and safety of your engine. You might, and we say might, get away with using 22mm carbs, but only with modifications and even then you are running on the edge of the big bang! Buy Mugello
inlet manifold
& Ancillotti
PHBL 25mm Standard, big bore / clubman / Ancilotti type exhausts, not really recommended for expansions. 55/60 crusing
65/70 top speed
The PHBL is good for replacing the SH/Jetex type of carbs with a much more modern and configurable carb, although it will not give that much more performance. Again should you wish to run this through the air box, it will fit and work fine. This set up will give the best original looks, and the best fuel economy Buy Mugello
25PHBL kit
& Ancillotti
PHBH 26mm Clubman / Ancillotti 60 crusing
65/70 top speed
The PHBH 26 we recommend to work where you want maximum performance for box pipes. Ideally you would run this as a remote filter system, whislt you can run this through the air box, to be honest the constraints of the Lambretta air box systems makes it not really worth while, and it does restrict performance. Buy Mugello
26PHBH & Remote
& Ancillotti
PHBL 28mm The PHBH is a bit of a piggy in the middle carb, not really well suited to either types of exhaust, but will work ok on most applications. It is not a carb we sell or reccomend.
PHBL 30mm PJ JL3 exhaust 65/70 crusing
70 + top end
The 30 PHBH is probably the best alround carb to use on Mugello kits with an expansion, giving good speed with a degree of fuel effiecency compared to much larger carbs (which wont give virtually any more performance, but will drink plenty more fuel). The 30mm will not run efficently through a Lambretta air box, and it is best used with a high quality remote filter. Buy Mugello
30PHBH & Remote
& JL3
PHBL 30mm PJ JL4 exhaust 60/65 crusing
75 + top end
The 30 PHBH is probably the best alround carb to use on Mugello kits with an expansion, giving good speed with a degree of fuel effiecency compared to much larger carbs (which wont give virtually any more performance, but will drink plenty more fuel). The 30mm will not run efficently through a Lambretta air box, and it is best used with a high quality remote filter. Buy Mugello
30PHBH & Remote
& JL4

The Imola kits are a high end, high performance reed valve kit, the carb exits on the opposite side from standard, and needs a round exhaust manifold type exhaust. The kits are ideal for a gaining the most performance from your engine for racing around and having great fun. You could build a touring set up as well.
PHBL 30mm PJ JL3 or JL4 exhaust 70mph plus The Imola and Monza kits are reed valve, and respond best with 30mm carb, either opened mouthed or remote filter (all run inside the panel work). Although you can run an Ancillotti type exhaust, it will restrict power / output / speed. Best results are gained with an expansion exhaust, either JL3 or JL4. Buy Imola
30PHBH & Remote
& JL3
PHBL 30mm PJ JL3 or JL4 exhaust 75mph plus The Imola and Monza kits are reed valve, and respond best with 30mm carb, either opened mouthed or remote filter (all run inside the panel work). Although you can run an Ancillotti type exhaust, it will restrict power / output / speed. Best results are gained with an expansion exhaust, either JL3 or JL4. Buy Imola
30PHBH & Remote
& JL3


Options for 200 engine cases
Carb Exhaust Good for Comments Buy / Price
Standard 22mm carb (including Jetex) Standard, big bore / clubman / Ancilotti type exhausts, not really recommended for expansions. 55/60 crusing
60/65 top speed
Gives you the reliabilty of the alloy/nicasil, with average performance gains. Ideal as an entry level to Mugello ownership when users intend to improve performance when their budget allows. Of course if you insist on standard looks, then the original 22mm Dell'Orto / jetex carbs are fine as long as you understand you are sacrificing performance. Buy Mugello 200
inlet manifold
& Ancillotti
PHBL 25mm Standard, big bore / clubman / Ancilotti type exhausts, not really recommended for expansions. 55/60 crusing
65/70 top speed
The PHBL is good for replacing the SH/Jetex type of carbs with a much more modern and configurable carb, although it will not give that much more performance. Again should you wish to run this through the air box, it will fit and work fine. Buy Mugello 200
25PHBL kit
& Ancillotti
PHBH 26mm Clubman / Ancillotti 60 crusing
65/70 top speed
The PHBH 26 we recommend to work where you want maximum performance for box pipes. Ideally you would run this as a remote filter system, whislt you can run this through the air box, to be honest the constraints of the Lambretta air box systems makes it not really worth while, and it does restrict performance. Buy Mugello 200
26PHBH & Remote
& Ancillotti
As above but 225cc. The extra 25cc gives more torque then any thing else, its doesnt give much more top speed. Buy Mugello 225
26PHBH & Remote
& Ancillotti
PHBL 28mm The PHBH is a bit of a piggy in the middle carb, not really well suited to either types of exhaust, but will work ok on most applications. It is not a carb we sell or reccomend.
PHBL 30mm PJ JL3 exhaust 65/70 crusing
70 + top end
The 30 PHBH is probably the best alround carb to use on Mugello kits with an expansion, giving good speed with a degree of fuel effiecency compared to much larger carbs (which wont give virtually any more performance, but will drink plenty more fuel). The 30mm will not run efficently through a Lambretta air box, and it is best used with a high quality remote filter. Buy Mugello 200
30PHBH & Remote
& JL3
As above but 225cc. The extra 25cc gives more torque then any thing else, its doesnt give much more top speed. Buy Mugello 225
26PHBH & Remote
& Ancillotti
PHBL 30mm PJ JL4 exhaust 60/65 crusing
75 + top end
The 30 PHBH is probably the best alround carb to use on Mugello kits with an expansion, giving good speed with a degree of fuel effiecency compared to much larger carbs (which wont give virtually any more performance, but will drink plenty more fuel). The 30mm will not run efficently through a Lambretta air box, and it is best used with a high quality remote filter. Buy Mugello
30PHBH & Remote
& JL4
As above but 225cc. The extra 25cc gives more torque then any thing else, its doesnt give much more top speed. Buy Mugello 225
30PHBH & Remote
& Ancillotti

The Monza kits are a high end, high performance reed valve kit, the carb exits on the opposite side from standard, and needs a round exhaust manifold type exhaust. The kits are ideal for a gaining the most performance from your engine for racing around and having great fun. You could build a touring set up as well.
PHBL 30mm JL3 exhaust 70mph plus The Monza kits are reed valve, and respond best with 30mm Power Jet carb, either opened mouthed or remote filter (all run inside the panel work). Although you can run an Ancillotti type exhaust, it will restrict power / output / speed. Best results are gained with an expansion exhaust, the JL3 gives a good touring set up at the expense of some top speed. Buy Monza
30PHBH & Remote
& JL4
PHBL 30mm JL4 exhaust 75mph plus The Monza kits are reed valve, and respond best with 30mm Power Jet carb, either opened mouthed or remote filter (all run inside the panel work). Although you can run an Ancillotti type exhaust, it will restrict power / output / speed. Best results are gained with an expansion exhaust, the JL4 gives a good all round machine for racing arund and having fun. Buy Monza
30PHBH & Remote
& JL4



The most common question we are asked day in day out is what jetting do I need in my carburettor!

In a recent survey of telephone calls to our shop in one day, 65% of calls were about jetting a carburettor. Of these, a staggering 43% were from people who hadnt brought their cylinder kit, carb, or exhaust from us! We give full fitting, set up , and running in details with all our kits!

Whilst we dont mind helping, it is our passion, and what we are here for after all, giving help and advice on other shops products and items is putting a strain on us helping our customers! Just think before you buy, ask the shop questions before you buy, if they dont sound helpful when they want your money, what chance have you when they have got your money! Can you even pick up a phone and ask some far away shops? No? I wonder why!

Please note we work with Dell'Orto SH, PHBH carburettors, standard, Ancillotti / Clubman / Big bore, JL3 & JL4 exhaust systems, Imola, Monza and Mugello cylinder kits. This is what we sell, fit and recommend, if you choose to purchase other suppliers or manufacturers parts, e.g exhausts, it is not really worth asking us as we do not have experience with such items to be able to know what jets/timing/set up to suggest.

Point of interest no two scooters are ever the same, so jetting wont be either! We run THREE Imola kitted scooters within the staff, guess what? All three run different jetting!!

Jetting is vital to power, reliability, and enjoyability (probably not a real word, but I bet you understood it!) for your scooter. Jetting a carburettor is THE single hardest job in setting up your scooter. Most of us can easily build an engine, match a cylinder to the casing, but by far the hardest job to perfect is jetting.

Whilst we will try to help and give advice, we are very much restricted, as only you know where your scooter is rich, where it is lean. This can only really be done by riding it, listening to it, knowing the vital signs, feeling how it responds and reading your spark plug. If you cannot do this, then the chances of us being able to do so over e-mail or the phone is very limited.
The best answer we can give is dyno, a modern dyno with a skilled operator can work wonders for your scooter.
You could easily spend £40 to £60 on different needles, atomisers, slides, jets to set your carburettor, most of which you will fit try,and move on to the next one. When you consider this is around the cost of a session on a dyno, it makes more sense to have your scooter set up professionally.

Badly set up scooters will do any of the following
  • Loose power
  • Run hot
  • Run lean
  • Pink
  • Hole a piston
  • Gum rings
  • Sieze a piston
  • Affect fuel consumption
  • Smoke
  • fowl spark plugs
  • Cause premature failure of exhausts
  • STOP YOU ENJOYING YOUR SCOOTER


With any of our kits we offer FULL fitting instructions, including what we suggest as initial set up details, our carburettors come with full instructions on how to set the carburettor up should you want to try to do this yourself.

Whilst we will always try to help, the first question we will ask you is have you read these instructions that are available on our downloads page>

You need a basic understanding of what is going on for us to help you.

Continue

LOG IN

E-Mail Address:

Password:


Password Forgotten ?
New Account
Now in your cart  0 items
Great value and look good once you have ...
3 of 5 Stars!