Carburettor

 

Model

Year

Type No

Mixing Chamber Body Number

Internal Bore

Jet Block Part No.          Size

Jet Size

 

Throttle Valve

Needle Position

Needle Jet

Float Chamber Type No.

Float Chamber Body Part No.

Banjo Part No.

Special Details

Main Pilot  
Viper 1955 376/56 376/002? 1in   1" 230 25 3 1/2  2 0.106 Monobloc - -  

Viper

1956-67

376/61

376/003

1 1/16 in

376/057

1 1/16 in

270  

30

3 1/2

3

0.106

Monobloc

-

-  

Viper

1957-61

T10TT9

175/045

1 1/16in

-

-

360

 -

7

4

0.109

14/533(7)

-

14/250

Megaphone setting

Viper

1957-61

T10GP

 

1 1/16in

-

-

220 

-

4

3

0.109

14/533 (7)

-

14/250

Megaphone setting
GP6  Needle 1 /10 air jet Std. TT air tube.

Viper

1957-61

T10TT9

175/045

1 1/16 in

175/108D

-

340 

-

4

3

0.109

14/533 (7)

-

14/250

Std. Silencer

Viper

1957 - 67

376/61

376/003

1 1/16 in

376/057

1 1/16 in

320 

30

4 1/2

2

0.106

Monobloc

-

376/098

Megaphone
Intake ring 376/110

Viper

1957 - 67

376/61

376/003

1 1/16 in

376/057

1 1/16 in

30 

30

4 1/2

2

0.106

Monobloc

-

376/098

Open Pipe
Intake ring 376/110

Viper

1968

R626

26mm

-

-

-

210 

25

3

2

0.106

-

-

 

 

MSS

1954

276BS/lAT

276/416R

1 1/16 in

206/059R

-

180 

-

6/4

3

0.106

PAT (7)

-

-

-

MSS & Endurance

1955-67

376/49

376/003

1 1/16 in

376/057

1 1/16 in

240 

25

3 1/2

3

0.105

Monobloc

-

-

 

MSS Scrambler

1955-61

T10TT9

175/046RR

1 1/8 in

175/101D

1 1/8 in

420 

-

7

4

0.109

302/10

302/001

-

-

MSS

1968-70

R930

 

30mm

-

-

270 

30

4

2

0.107

   

-

-

Venom

1955

389/14

389/002

1 1/8 in

-

1 1/8 in

260 

30

3 1/2

2

0.106

Monobloc

-

 

-

Venom

1956-67

389/15

389/004

1 3/16 in

-

-

330

30

3 1/2

4

0.106

Monobloc

-

-

Silencer Setting

Venom

1956-67

389/15

389/004

1 3/16 in

-

-

370

30

3 1/2

4

0.106

Monobloc

-

-

Megaphone Setting

Venom

1956-67

389/15

389/004

1 3/16 in

389/058

-

370

30

4 1/2

4

0.106

Monobloc

-

-

Open pipe

Venom

1957-61

T10TT9

 

1 3/16in

-

-

390 

-

5

3

0.109

14/533(7)

-

14/250

Megaphone setting

Venom

1957-61

T10TT9

 

1 3/16in

-

-

390 

-

7

3

0.109

14/533(7)

-

14/250

Open Pipe

Venom

1957-61

T10TT9

 

1 3/16in

-

-

370 

-

4

3

0.109

14/533(7)

-

14/250

Silencer setting

Venom

1957-61

T10GP

 

1 3/16in

-

-

240 

-

4

2

0.109

14/533 (7)

-

14/250

Megaphone
GP6 Needle 1/10 Air jet Std. TT air tube, Spray tube 622/074

Venom Clubman,

1967-69

R930/ 15

-

30mm

-

-

270 

30

3

3

106

-

-

-

366/ 1 Twist Grip, 12/ Control with cables

Venom

1970

R930/29

-

30mm

-

-

270 

30

3

3

106

-

-

 

Air tube 928/066, 366/1 Twist Grip

Venom (open pipe)

1967-69

R930/16

-

30mm

-

-

290 

25

3 1/2

2

106

-

-

-

Spray tube 622/074

Thruxton

1965-69

5GP2

516/305

1 3/8 in

316/ 143

1 3/8 in

280 

25

3

5

0.109

510/ 1

510/001

510/020

'Red Book' settings

Thruxton

1965-69

5GP2

516/305

1 3/8 in

316/ 143

1 3/8 in

310 

25

4

2

0.109

510/ 1

510/001

510/020

Later settings

Thruxton

1969

R930/16

-

30mm

-

-

290 

25

3 1/2

2

106

-

-

-

 

Thruxton

1970

R1036/4

-

-

-

-

320 

30

3

1

106

-

-

-

Float chamber 622/056, Air tube 1034/70, Main jet filter 928/071