2.a Parts to fit: Amal TT (and some 276/289) Carburettor

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

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

6 part air adjuster kit to fit original Amal TT, RN and GP competition carburetters, containing the following parts: - Air cable adjuster and locknut - Air barrel top - Air valve and nipple holder for air valve - Air valve spring.  These also fit RN/GP carbs

2 part air adjuster cable adjuster and locknut to fit original Amal TT, RN and GP competition carburetters, manufactured in stainless steel, with the same profile as the original competition items

2 part throttle cable adjuster and locknut to fit original Amal TT and RN competition carburetters (with 3/8" diameter thread), manufactured in stainless steel, with the same profile as the original competition items

- Top ring retainer spring as fitted behind lockring of bellmouth on original later type Amal TT carbs, and stops top lockring from loosening.  This one, as per original item.  Note : this ring was not fitted to earlier TT carbs - but can be adapted if required, see listing for detail

- '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.

Update Nov 2020: These have been out of stock for some time, but we are having a new batch manufactured to fit both TT and RN slides.  Email to reserve

- High quality throttle slide to fit original 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 spring of the correct dimensions to fit the Amal TT/RN/GP air adjuster assembly.  It is also of the type shown fitted to earlier Amal TT and RN carburettors, before the introduction of conical springs on competition carburettors.  See listing for details 

- 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 on Amal TT carburettors - originals always seem to be rusty! - CNC machined in stainless steel

- TT Carburetter needles

- 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)

These are genuine (old stock) Amal main jets of the type originally supplied for Amal TT/RN/GP racing carburettors, identifiable by the hex part having no indent along its length (which all later Amal and modern jets have).  All sizes are available, including many of the rarer large sizes.  Price is Each

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.

TT Needle Jets - Available in 107, 109, 113 and 120 (methanol) sizes. 

- 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 to the body behind Pilot Needle on Amal TT and RN racing carburettors - Like the throttle adapter peg, this item is often found rusty on original carbs