HS4 1.5"

Sharp looking allen head screw to fit SU carburetor dashpot and float lid. Non-tarnishing stainless steel will look good for years!

.090 ''fixed'' needle, Special tuning ''#5'' for performance applications. Ref: AUD1004.

.090 ''fixed'' needle, Special Tuning ''6'' for performance applications. Ref: AUD1005.

Fixed SU carb needle, AC code. Used originally on 998 classic Minis with single HS4 and automatic transmission

Fixed .090 AN carb needle for SU HS2 and HS4

Needle, SU Carburetor, fixed, KW code. Believed to be original spec for some twin HS4 ace applications. Sold each.

.090 ''Fixed'' SU carb needle, ''M'' type, for standard Cooper S with twin HS2. Ref: AUD1261.

.090 Fixed Needle for HS2, HS4 or HIF4 SU Carb. "MME"

.090'' floating carb needle for HS2, HS4 or HIF4 SU carburetors; AAA. Ref: CUD1000.

.090 Floating Needle for HS2, HS4 or HIF4 SU Carb., AAM. Ref: CUD1011.

AAR spring-loaded or swing needle for SU HS2, HS4, or HIF4 carb. Ref: CUD1015, AAR.

.090 ''floating'' needle for HS2, HS4 or HIF4 SU carb. Spring-loaded equivalent of the M needle. Ref: CUD1017, AAT.

.090 Floating Needle for HS2, HS4 or HIF4 SU Carb. "AAU", Stage one 998.

AAV spring-loaded or swing needle for SU HS2, HS4, or HIF4 carb. Commonly used in twin HS4 application. Ref: CUD1019.

Spring-loaded APB needle. Standard needle for 1098cc with single HS4 carb, 1975-on.

SU service kit for 850cc-1000cc Minis after 1975 using the Waxstat thermostatic jet.

SU service kit for minor rebuild of single HS4 SU carburetor with plastic jet. Ref: CSK52, WZX1852.

If you need a vacuum take-off, this carb spacer is the trick. Plastic spacer with metal vacuum nipple fits 1.5'' H4 or HS4 SUs. Approximately .25" thick.

Using the CarbSync is the fastest and easiest way to synchronize airflow through twin carbs; a must-have for anyone maintaining twin carbs. Ref: CARBSYNC, MSA1003, STL0013.

Brighten up your engine compartment with this brushed aluminum dashpot cover; fits HS4 carbs only. Ref: R23, SIE0071.

Brand-new SU carbs as used on Special Tuning HS4 conversions in the 1960s. Ref: SIE0084, C-AUD640, AUD640T.

Metal clip that holds the choke cable to the 12G766 abutment plate.

Dashpot damper with black plastic cap. Fits the top of SU HS2 and HS4 carburetors.

Dashpot spring with 2.5 ounce rate at 2.625'' length; commonly found on performance-tuned engines.

Small-diameter dashpot spring with 4.5 ounce rate at 2.635'' length. Commonly found on stock spec units and mildly tuned engines. Ref: AUC4387.

SU dashpot spring with 8oz ounce rate. 1'' diameter, as used on HS and early HIF-series carbs. Ref: AUC1167.

Left-hand rubber float chamber adapter for SU HS2 and HS4 carbs; used in twin-carb applications to set the carburetor floats at the proper angle. Ref: AUD2178, AUC1316.

Right-hand rubber float chamber adapter for SU HS2 and HS4 carbs; used in twin-carb applications to set the carburetor floats at the proper angle. Ref: AUD2179, AUC1336.

Float lid gasket for all SU HS side-float carburetors; fits SU HS2, HS4, and HS6 carbs. Ref: AUC8459, GSU0550.

High-flow needle and seat valves; diameter is .096'' compared to .070'' for standard applications. For HS series carbs including HS2 & HS4

Adjustable float for HS2 and HS4 SU carburetors. Ref: WZX1304, WZX1300.

The paper gasket that goes between the carb and the cleaner elbow or pancake filter on HS4 carbs.

HS4 carb to manifold gasket, two-bolt. Ref: AEC2083.

Grose Jet float valve for all side-float SU carbs. Ref: SIE0045.

Small metal guide that retains the spring-loaded or ''swinging'' needle on SU HS or HIF carburetors. Ref: AUD4288.

Heat shield kit in black for twin HS4 (1.5'') carb set.

Heat shield kit in stainless for twin HS4 (1.5'') carb set.

Knurled hinge pin for float in HS series carb fuel chamber. Ref: AUC1152.

New SU HS4 (1.5'') single carb to replace original used at various times on late 850 and 998, 1300cc classic Minis and Austin America. Ref: FZX3003, FZX1240, AUD611, SIE0025.

Special large-bore jet for racing applications, with .100'' bore instead of conventional .090'' bore to allow richer mixture.

Special large-bore jet for racing applications. Has .100'' bore instead of conventional .090'' bore to allow richer mixture. Fits rear or right-hand carb.

Jet bearing kit for ''fixed needle''-type SU HS carburetors, including HS2 and HS4. Ref: WZX1341.

Jet bearing kit for ''swinging needle''-type SU HS Carburetors, including HS2 and HS4

Linkage set for converting a later Waxstat-type jet HS4 to the earlier, simpler plastic fixed jet. Ref: BFS701SUL.

Jet locking spring for SU HS2 and HS4 carburetors. Serves as a tension spring for the jet bearing assembly. Sold each.

Universal linkage kit for twin HS2 or HS4 SU carburetors. Ref: MSSK009, SIE0052.

Abutment plate for single HS4 carburetor, with mounting stud for the original air filter and also locates the throttle and choke cables. Ref: 12G766, 12G0766.

Genuine SU kit with everything normally needed to rebuild a pair of HS4s, as fitted to performance classic Minis. Ref: CRK254.