Carburettor and Air Filter

For gasket sets click here; for petrol pipe, taps and fittings click here; for cables click here.

All Leaders and Arrows were fitted with the Amal ‘Monobloc’ carburettor, so called because the float chamber was cast in one with the mixing chamber unlike its predecessor, the type 6. All models used the 375 version with a 13/16” bore except the Sports Arrow, which used a 376 carburettor with a 1 1/16” bore. The bodies were made especially for Ariel without the usual thread on the intake end for a bell mouth or filter; instead a groove was cast in to the plain end for the unique strangler mechanism.

The 375 carburettors usually have an angled spray tube fitted (the brass piece inside the choke where the throttle needle goes), if it has a flat top, use the alternative main jet listed.

A major cause of poor running, particularly idling, is caused by wear between the body and the slide. This can be cured by boring the body out and fitting a sleeve to the slide which is then machined to suit the body. This is a long lasting solution due to the improved materials used. Fitting a new slide in a worn body is like fitting a new chain on old sprockets, a waste of time. We can do this work for you as well as generally reconditioning your carburettor. For the sleeving work we need to have the body, throttle slide, jet block. See RES169 in the price list for the basic sleeving work and RES170 for the approximate price for fully reconditioning.

Part No

Description

Per

Models

GS375

Amal Monobloc carburettor gasket set * 1 375 A,B,S,T,H

GS376

Amal Monobloc carburettor gasket set * 1 376 G

T36

Air filter assembly with element 1 All

T36/1

Air filter element only 1 All

T108

Air filter rubber connector 1 All

T119

Clip for air filter, wire clip as per original 1 All

T132/1

Strangler operating rod 1  S, T, G, H

T133

Choke rod grommet 1  S, T, G, H

T2095

Petrol pipe assembly 1 All

4/035

Cable adjuster 1 All

4/137A

Blanking plug in mixing chamber top 1 All

4/148

Air screw spring 1 All

4/230

Needle clip 1 All

4/235

Spring clip for top ring 1 All

4/241

Screw, mixing chamber cap spring 1 All

5/047

Choke slide guide tube 1 A, B, S, T, H

5/077

Lock nut for cable adjuster 1 All

14/026

Petrol pipe spigot, push on (not as illustrated) 1

14/042

¼ BSP gland nut for petrol pipe 1 All

116/162

Fibre washer, pilot jet cover nut 1 All

244/765

‘O’ ring, flange to cylinder head 1 3/8” OD (either size used on 376) 1 All

244/1048

‘O’ ring, flange to cylinder head 1 ½” OD (either size used on 376) 1 G

332/017

Air screw 1 All

343/011

Tickler body 1 All

375/060/35

Throttle slide 3 ½ cutaway 1 A, B, S, T, H

375/061

Throttle spring 1 A, B, S, T, H

375/063

Throttle needle 1 A, B, S, T, H

375/064

Mixing chamber top, 2 adjuster type 1 A, B, S, T, H

375/065

Mixing chamber top ring 1 A, B, S, T, H

375/067

Gasket, jet block 1 A, B, S, T, H

375/090U

Strangler assembly, used 1 A, B, S, T, H

375/33U

Monobloc carburettor, used 13/16″ bore 1 A, B, S, T, H

376/17

Monobloc carburettor, 1 1/16”, new, no strangler facility 1 G

376/060/35

Throttle slide 3 ½ cutaway 1 G

376/061

Throttle spring 1 G

376/063

Throttle needle 1 G

376/064

Mixing chamber top, 2 adjuster type 1 G

376/065

Mixing chamber top ring 1 G

376/067

Gasket, jet block 1 G

376/068

Throttle stop screw 1 All

376/069

Spring for throttle stop screw 1 All

376/070

Locating screw, jet block 1 All

376/072/105

Needle jet, .105 1 All

376/073

Main jet holder 1 All

376/075

Main jet cover nut 1 All

376/076/30

Pilot jet 1 All

376/077

Float cover 1 All

376/078

Gasket, float chamber cover 1 All

376/079

Float cover screw 3 All

376/083

Float with spacer 1 All

376/086

Tickler button 1 All

376/088

Float needle seating 1 All

376/089

Float needle, ‘Viton’ tipped! Ooooh er! 1 All
When using a ‘Viton’ tipped float needle, a fibre washer should be fitted under the float needle housing.

376/090

Fuel banjo, single inlet, threaded 1/4 BSP 1 All

376/091

Bolt, fuel banjo 1 All

376/093

Petrol filter 1 All

376/094

Float spacer 1 All

376/095

Pilot jet cover nut 1 All

376/097M

Fuel banjo, single push on type, metal All

376/100/130

Main jet 1 H

376/100/140

Main jet, when angled spray tube fitted, see above 1 A, B, S, T

376/100/170

Main jet, when angled spray tube not fitted, see above 1 A, B, S, T

376/100/230

Main jet 1 G
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