|
Lambretta long range 14.5L petrol
tank:
Click
here
for a review & a how to on installing it. |
| Lambretta
Series I, II & III fuel
tap positions |
Standard
Lambretta Series III carb diagram
& 20mm similarities |
| Standard
Lambretta carb details table (jet,
slide, needles sizes etc. used on all Lambrettas) |
Dellorto
VHSA/VHSB carb - exploded diagrams/parts lists
|
| Jetting
your carb (guide to setting up a
carb) |
MB
Developments carburettor guide for tuned scooters |
|
Mikuni Carb Tuning Guide
(warning this is a huge .pdf download ~24MB) |
Throttle openings index
(indicates which jets/needles are affected by the
respective throttle opening position) |
|
Nice
tank! |
|
|
Quick & dirty carb
set-up guides for Lambrettas note:
there's no guarantee any of these will work on your scooter. Any
doubts etc. use the jetting guide or links above. |
|
Lambretta
TS1 230 with Mikuni TMX 32mm & PM28 exhaust |
| Lambretta
TS1 225 road tune with
Dellorto VHSA 30mm carb & Taffspeed exhaust |
| Lambretta
TS1 225 with
Mikuni 34mm & West Coast Lambretta race exhaust |
|
Lambretta TS1 225
with Mikuni TMX 35mm |
| Lambretta
TS1 225 "WCLW Humiliator", Mikuni 32mm & PM Tuning PM28
exhaust |
|
Lambretta
TS1 225, Keihin PWK28 and Taffspeed exhaust |
|
Lambretta
TS1 225, Keihin PWK28 and AF clubman exhaust |
|
Lambretta
TS1 225, 34mm Amal and NK exhaust |
| Lambretta
190 stage 4 with standard Dellorto 22 mm carb & 42 mm clubman
exhaust |
| Lambretta 190 stage 4 Suzuki conversion with Dellorto 30mm PHBH & big bore exhaust |
| Lambretta 190 stage
5 Suzuki conversion with Mikuni 28mm & big bore exhaust |
| Lambretta
190 with Dellorto 30mm round slide & WCLW exhaust |
|
Lambretta 200 stage 4
(Indian) with Mikuni TM28mm JL KRP-4 race exhaust |
|
Lambretta 200 stage 4 with Dellorto 30mm PHBH
& Taffspeed exhaust |
| Lambretta
SX 200 Indian stage 4 with standard 20mm Dellorto & 42mm big
bore exhaust |
| Lambretta RS200 stage 4 with Dellorto 30mm PHBH & Taffspeed exhaust |
|
Lambretta
RS205 stage 5 with Dellorto 30mm PHBH solid mount carb & PM
exhaust |
|
Lambretta
GP205 stage 4 with Dellorto 30mm PHBH carb & 42mm Clubman exhaust |
| Imola 185, Mikuni 28 mm flatslide
& ScootRS exhaust |
| Lambretta 175
conversion (Spanish LI 150) with Jetex carb & Fresco exhaust. |
| Lambretta 175
conversion stage 4 with Dellorto PHBH 28mm & 48mm big bore exhaust. |
|
Lambretta 175
conversion stage 4 with Dellorto 30mm PHBH |
| Lambretta SX 150 with 175 conversion stage 4 with Amal MKII 30mm bellmouth & NK exhaust |
|
Lambretta
Mugello 186 Stage 5 with Dellorto PHBH 26mm and 42mm Clubman |
|
Lambretta Imola 185 with Dellorto PHBH 30mm and Ancilotti big bore |
|
Lambretta Imola 185 with Dellorto PHBH 28mm and 48mm Clubman big bore |
|
Lambretta Imola 185 with Dellorto 30mm PHBH and Imola snail type
Gianelli Mk1 |
| |
|
Lambretta
TS1 230 with Mikuni TMX 32mm & PM28 exhaust
(thanks to Alex @
Lambretta.li)
needle 6FJ6 (leanest position)
main jet 290
pilot jet 22.5
slide 5 (important)
|
|
Lambretta
TS1 225 road tune with Dellorto VHSA 30mm carb & Taffspeed exhaust
needle
jet = DQ262
K23 needle
(clip in middle position, top = leaner)
main = 150
pilot = 40
The pilot
jets range from 35 to 100 in
one size increments. Be careful that reduction of the pilot jet does
not require an increase in needle jet as these do create an overlap.
Slow running cd1atomiser (fitted as std.) affects idle and up to 1/3 throttle.
Alternatively
try the following richer configuration:
needle jet
= DQ264
K5 needle (clip in top
position)
main = 142
pilot = 40
OR richer
still
needle
jet = DQ265
K5 needle (clip
in
top
position)
main = 145
pilot = 40
|
|
Lambretta
TS1 225 with
Mikuni 34mm & West Coast Lambretta race exhaust
needle = 6FJ6 (middle position)
main = 220-280 (works great at 220 for 35mm flatside)
pilot = 35 |
|
Lambretta TS1
225 with Mikuni TMX 35mm
needle - EN1155 - top position (leanest)
main = 350
pilot = 20
slide = 6
Not ideal but good place to start ... |
|
WCLW
"Humiliator" TS1 225 kit, Mikuni 32mm & PM Tuning PM28
exhaust
needle = 6FJ6
(middle position)
main = 280
pilot = 35
Stock
atomiser as supplied in carb
|
|
Lambretta
TS1 225, Keihin PWK28 and Taffspeed exhaust
needle = JJH
Pilot = 50
main = 155 |
|
Lambretta
TS1 225, Keihin PWK28 and 48mm AF clubman exhaust
needle = JJH
Pilot = 45
main = 140 |
|
Lambretta
TS1 225, 34mm Amal and NK exhaust
needle jet = 108
(set needle on its richest setting i.e. clip in bottom groove
main = 350
pilot = 35
choke = 50
No. 3 1/2
slide
power jet blanked off
Airscrew set at
around 1 1/2 turns out
This
leaves the mid range pretty rich, if the bike splutters and 4 strokes
around 1/4 to 3/4 revs then gradually weaken off the needle setting. You
may even need to go down to a 107 needle jet. Always start
off rich to be safe. |
|
Lambretta
190 stage 4 with standard Dellorto 22 mm carb & 42 mm clubman
exhaust
main = 122-128 (good starting point)
pilot = 45, 48 or 55
slide = 7895-1
atomiser = 5899-2
starter = 50
|
|
Lambretta
190 stage 4 Suzuki conversion with Dellorto 30mm
PHBH & big bore exhaust
atomiser = AV262-269
needle = X7
main = 120-130
choke= 50-70
idle= 50-60
slide = 40-50
filter 118-125
|
|
Lambretta 190 stage
5 Suzuki conversion with Mikuni 28mm & big bore exhaust
needle jet =169-08
main= 180
pilot=40
needle=2nd from top of clip or middle
|
|
Lambretta
190 with Dellorto 30mm round slide
& WCLW exhaust
needle = X7
needle jet = AV266
main - 130
slide = 40-45
idle = 35-40
|
|
Lambretta 200 stage 4
(Indian) with Mikuni TM28mm JL KRP-4 race exhaust
main = 170
needle = 5EJ11
needle jet = 169-N6 (trimmed to 2.8mm)
slide cutaway = 2.5
pilot jet = 30
|
|
Lambretta
SX200 (Indian stage 4) with standard 20mm Dellorto & 42mm big
bore exhaust
main = 106
pilot = 50
atomiser = 5899-2
slide = 5914 - 1
starter = 50
|
|
Lambretta RS200 stage 4 with Dellorto 30mm PHBH & Taffspeed
exhaust
needle=X7 2/3 clip
main=125
pilot=55
slide 50
atomiser=AV264
needle jet=300
Adjust the float height so it sits higher when full
|
|
Lambretta
RS205 stage 5 with Dellorto 30mm PHBH solid mount carb & PM
exhaust
needle = X7 (T1 or T2 clip)
main = 130-125
pilot = 50-60
atomiser = AV266 (If AV266 atomiser is a bit rich opt for a
AV264)
slide = 40
|
|
Lambretta
GP205 stage 4 with Dellorto 30mm PHBH carb & 42mm Clubman exhaust
needle = X2 (T2 clip)
main = 122
pilot = 50
atomiser = AS266
choke = 70
slide = 40
|
|
Imola
185 with Mikuni 28mm flatslide & ScootRS exhaust
main = 300-340
pilot = 25 - 30
|
|
Lambretta Spanish LI 150 175 conversion with Jetex carb & Fresco exhaust.
main = 122
pilot = 48
slide = 5889-2 (flat)
|
|
Lambretta 175
conversion stage 4 with Dellorto 28mm PHBH & 48mm big bore exhaust.
atomiser = AV264 (Starts off rich and you can work down)
needle = X13 (2nd clip) or X7
main = 118
|
Lambretta 175
conversion stage 4 with Dellorto 30mm PHBH
main = 120
atomiser = AV166
choke = 70
idle = 55
slide = 40
Air screw out 1.5 |
|
Lambretta
SX 150 with 175 conversion stage 4 with Amal MKII 30mm bellmouth & NK
exhaust
needle = 2d1
needle jet = 107 (2nd clip down)
main = 230
choke = 50
idle = 50
slide = 4 |
|
Lambretta
Mugello 186 Stage 5 with Dellorto PHBH 26mm & 42mm Clubman
main =105
pilot = 50
slide = 40
needle jet = X2 (2nd clip down)
atomiser = AS266
|
|
Lambretta
Imola 185
with Dellorto 30mm PHBH and Ancilotti big bore
Atomiser = AS264 / AS266
Needle X1 / X2
main = 118
Pilot/Idle = 53
slide = 40 |
|
Lambretta
Imola 185
with Dellorto 28mm PHBH and 48mm Clubman
Atomiser = AS266
Needle = X2
main = 115-118
Pilot/Idle = 55
slide = 40 |
|
Lambretta Imola 185 with Dellorto 30mm PHBH and Imola snail type Gianelli
Mk1
Atomiser AS266
Needle X2
Main 135 +
Pilot 55 - 60
Slide 40 |
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