2.a Amal TT Carburettor Parts

Listed here are reproduction parts to fit Amal TT carburettors. There were many variations of TT carburettors made over the years, with some subtle differences between pre-war and post-war versions. Norton carburettors were also slightly different to other makes. The majority of the parts shown here are generic and will fit all models.

Castrol ValveMaster Plus - Lead Replacement Plus Octane Booster - 250ml Bottle

Driven Defender and Booster - Lead Replacement Plus Octane Booster - 295ml Bottle

- Lovely quality chromed chamber cap to fit all 10TT Amal Carburetters -The type shown here is the type originally fitted to post-war TT carburettors, where the ring was secured using the retainer spring shown below (4/307) - Unfortunately the original pre-war type (which used a wider mixing chamber top and lockscrew) are no longer available. Therefore if you are replacing a pre-war type you will need to replace both the cap and chamber, as they are a matched pair. Note: RN Caps are a different diameter, so these will not fit. I am currently having a small batch of RN caps made - should be available Autumn 2009

- Turned aluminium choke top piece, that holds throttle cable adjuster - As with 0137, quality is lovely and as a pair they really transform a tatty carburettor - As this is the post war type, should be used in conjunction with TT/3338 and 4/307 spring

- Top ring retainer spring that fits behind lockring of bellmouth on late TT carbs - Note : this ring was not fitted to earlier TT carbs, that instead used a locking pin in the top of the mixing chamber top

- 'Short' type bellmouth to fit original Amal 10TT carburettors .  High quality CNC machined from an original bellmouth pattern.  Available in various internal diameter's - including those to fit both 350 and 500 variation SOHC Nortons 

- 'Medium type bellmouth to fit original Amal 10TT and RN (Remote Needle) carburettors .  High quality CNC machined from an original bellmouth pattern (see photo) .  Available in various internal diameter's - including those to fit both 350 and 500 variation SOHC Nortons 

- Long type bellmouth to fit original Amal 10TT and RN (Remote Needle) carburettors. Can also be fitted to  10GP1 .carbs  High quality CNC machined from an original bellmouth pattern (see photo) .  Available in various internal diameter's - including those to fit both 350 and 500 variation SOHC and early DOHC Nortons 

- Lock ring to fit original Amal TT, RN and some GP carburettor bellmouths.  CNC machined.

- High quality reproduction slide to fit Amal 10TT Carburetter - N0. 5 and No. 7 LH slide sizes kept in stock (most common sizes for 500cc International and SOHC Manx Nortons). - No 4 slide also in stock, as fitted to early Model 40 350cc Internationals. - Other sizes available by special order

- Correct type conical throttle spring to fit Amal TT. RN and GP racing Carburetter's

- This is the throttle cable adjuster and locknut, however the thread size is 7/32 x 40tpi, which is slightly finer than the original. On some carb tops they are non threaded to accept this adjuster, which is a simple mod to the threaded type

- This is the small threaded peg that locates the throttle adapter body in the main choke barrel (originals always seem to be rusty!)

- TT Carburetter needles

- TT Carburetter needle clips

- High quality cadmium plated brass main/pilot jet holder to fit both TT and RN carburetters - Nicely finished with clean crisp machining

- Nicely finished plug screw, fits at base of carburetter, over main jet - Made from brass as per the original and cadmium plated, this item includes that all important drilled bottom dimple so that it can be lockwired (unlike many other pattern versions)

TT Main Jets - Most sizes available but the following common Norton SOHC sizes kept in stock: 260/280

/310/320/350/370/400/420

/450/460/500/520 and

1300/1600 (methanol). Other sizes (including bigger methanol up to 1900) available to order. Email if you need more information or assistance. Note: TT main jets are also the same as those fitted to Amal RN and Amal GP carbs.

- High quality Pilot Needle to fit TT carburetter - Brass barrel, chrome plated for attractive finish - Type shown is later type (it has a flat face). Earlier pre-war type (with slightly different knurl and central outdent) is no longer available. Both types are interchanable and identical in operation

- TT brass pilot needle insert (the bit that the pilot needle screws into)

- coil spring that fits inside the TT Pilot Needle

Distinctive leaf spring that fits against Knurled pilot needle on Amal TT, RN and GP carburettors

- Small screw that fits on body behind Pilot Needle - Like the throttle adapter peg, this item is often found rusty on original carbs

- Banjo to fit TT and RN competition carburettors

- Banjo Nut to fit TT and RN competition carburettors. - As per original, including the hole at the bottom for lockwiring - Note: this type of banjo was also used on the later Type 302 floatchamber, used on later RN and GP1 carburettors. On these floatchambers the banjo was normally fitted on the top. (see also the GP section for other Type 302 parts)

- Brass float chamber needle, as per the original

Brass float needle to fit the Amal 276 type floatchambers and the early (mainly pre-war) type floatchamber.  

- 4 part tickler kit for TT/RN standard size float chamber. This float tickler fits the standard screw in (Type 76) floatchamber top, not the larger 1948 onwards Type 302 floatchamber used on Gardgengate and Featherbed Manx's. See GP section for the lat

- This is the lock screw fitted on the top of the Amal screw cover fitted to TT, RN (and standard pre-monobloc) type floatchambers