12V alternator wiring diagram and details on converting 6V to 12V , click here

ZENER DIODE VOLTAGE REGULATOR

The Zener diode was used on Alternator equipped British bikes from the mid 1960s to give a cheap and effective 12V Voltage control. If converting from 6V the Zenor can be the easiest way to do it.

The existing rectifier can be used, but the Zener has to be mounted on a heat sink.

Zener diode positive earth as standard

Pt.no. ZEN10054

but now also available in negative earth

£22.00 Pt.no. ZEN10166

Triumph type Heatsink ZEN 26114 £15.00

SOLID STATE VOLTAGE REGULATOR/RECTIFIER

FOR ALTERNATORS

REG10123W £29.95 These 12V regulators suit any Lucas / Miller type alternator up to 150W and replace the Zener diode and the rectifier and have to be used with a battery or capacitor. They can also be used when converting from 6V to 12V and come with full instructions. 65 x 55 x 24MM mounting holes 6MM dia. 55MM apart Pt.no.

Pt.no. REG10124W £29.95 For 3 phase up to 180W alternators 70 x 77 x 27MM

REG10121 at £49.95. A higher output 200W Podtronics regulator is available to cope with higher output single phase alternators such as the 190W stator above. 65 x 75 x 30MM 6MM dia. mounting holes 65MM apart

Pt.no. REGRR1 £49.95 6V 150W single phase version 77 x 80 x 30MM 6MM dia. mounting holes 62MM apart

Pt.no. ALRR01 £34.95 Regulator/Rectifier supplied by Alton to suit their own generators. 5 wire. 77 x 65 x 30MM 6MM dia. mounting holes 55MM apart

The RG6 AC voltage regulator will prevent bulb failure on bikes fitted with AC lighting. D1/3 Bantams etc.

£29.95 Pt.no. REGRG6

A capacitor is available for use where no battery is used £9.00 For points only, not with electronic ignition.

The same capacity as the Lucas original, 4700microFarad

Pt.no. CAPAO100

BRIDGE RECTIFIER

The bridge rectifier shown here replaces the lucas finned rectifiers fitted to British bikes from the 1950s to the late 1970 and will suit all models 6/12V fitted with an alternator except the later electric start Triumphs and Nortons.

The older Lucas rectifiers needed fins to disipate the heat generated, these are more efficient in rectifing all the current so need no finning and supply more current to the battery. Easy to connect, can be supplied with wiring instructions. Rated up to 25A £4.95 Pt.no.REC001

Dimensions are 30MM x 30MM x 23MM

How to convert an XT500 to 12V

Dynamo armatures

These Dynamo armatures are british made and are top quality replacements for the Lucas originals. They are wound as the 6V originals but will satisfactorly run a 12V system when using the V reg Voltage Regulator, below.

Replacement armature for Triumph/AMC/Norton twins fitted with the E3L dynamo £65.00

Pt.no DYN10210

Replacement armature for BSA twins fitted with the E3L dynamo £65.00

Pt.no DYN10211

Replacement armature for Magdynos 60W long £65.00 Pt.no. DYN10212

40W short £73.00 Pt.no. DYN10212S

Replacement armature for AMC singles fitted with the 40W dynamo £65.00

Pt.no DYN10213

Field coil for E3L dynamo 6V

£32.00

Pt.no DYN10214

Magneto brushes for the K1F & K2F magnetos.

Pt. no. MAG10003

£2.00 each

Magneto endcap for K1F & K2F £9.95

Pt. no. MAG61096

Dynamo Brushes E3L DYN200737 £10.95 / pr

Dynamo brushes E3S DYN200027 £10.95 / pr.

Dynamo clip & screw £2.95

Pt. no DYN10109

Condenser 6/12V Fits the Lucas distributer & 4CA breaker plate, but using the mounting hole can be located remotely from the points. Pt. no. CON10039 £5.95

V- REG 2A DYNAMO VOLTAGE REGULATOR, 6V & 6V - 12V UPGRADE

A 6V Lucas dynamo in good condition is capable of powering a 12V system allowing the use of modern lighting components. The E3 "short" dynamo will happily run a bike at 12 V fitted with the 35/35W Quartz Halogen bulb. Whereas if everything is in perfect condition the E3L as fitted to most 1950s twins is capable of powering the full 60/55W Xenon bulb. This is what I use on my A10.

What is needed is a Solid State Voltage Regulator. This converts the system to run on 12V. Supplied by A.O.Services, this device is proven and reliable. Available in Positive or Negative earth, also to run a 6V system.

This is a solid state encapsulated regulator for motorcycles using the Lucas E3 type dynamo. The TEB Technology dynamo regulator is designed to replace the mechanical regulator with modern reliable semiconductors, and can handle up to 100W at 6V and even more for the 12V version, provided the dynamo is capable of delivering this power. The regulator must be used with a known good automotive battery (minimum 5 Amp-hours) and is guaranteed, subject to correct fitting and use with a known good dynamo.

The V-Reg 2a is an upgraded version of the original V-Reg now fitted in a metal case. New features include: Current limit to the field winding, allows excellent performance when using a 6V dynamo on a 12V system. Tougher electronics, with the introduction of higher energy spark suppression to reduce spikes generated by the dynamo. Improved "thermal foldback" which progressively reduces output power if the regulator gets too hot, indirectly limiting the dynamo from excessive current. Higher specification voltage reference. Better servo loop stability, with new electronics which 'predict' when the output voltage is nearly correct and control the field current earlier.

The V-Reg 2a will run a 6V system or buy cutting a simple wire link will run a 12V system.

�42.95 Pt.nos. VREGPOS & VREGNEG

A 150W version is available to suit small cars such as the Austin 7 £49.95

Pt.nos.VREGA7POS & VREGA7NEG

Dimensions are 50 x 42 x 22MM

A battery will be needed with a capacity of 5Amp/hours minimum. We recommend the YTX7L-BS which measures 114MM x 71MM x 113MM. This is a sealed maintenance free battery and will fit the battery tray of A7/10s, Pre-unit Triumphs etc. with room to spare. The capacity is 6AH and the cost £28.90 + £6.95 P&P. Look on the batteries page for Gel, AGM & Cyclon cells to suit

Motorcycle batteries page

AMMETERS

Sizes shown are the OD of the chrome bezel, the hole dia. will be 1/8" smaller


Lucas pattern 2" diameter Pt.no. AM19000 £23.95	Lucas pattern 1 3/4" diameter Pt.no. AM19002 £15.95	Lucas pattern 2" diameter 8-0-8 Pt.no. AM19001 £23.95	Lucas pattern 2" diameter 12-0-12 Pt.no. AM19007 £23.95

Lucas pattern 1 3/4" diameter Pt.no. AM19008 £17.95	Miller pattern 2" diameter 8-0-8 Pt.no. AM19006 £22.95	Miller pattern 2" diameter 8-0-8 shallow type Pt.no. AM19009 £33.50	Lucas pattern 1 3/4" diameter Pt.no. AM19019 £17.95

Lucas pattern 2" diameter 12- 0- 12 Pt.no. AM19011 £23.95	Genuine Lucas OUT OF STOCK 8-0-8 These fit the headlamps on the lighting page. The scale is graduated into 4 segments not as shown above, it's a later version. 1 3/4" diameter Pt.no. AMLU36084 £25.95	Genuine Lucas As above but 12-0-12 These fit the headlamps on the lighting page. The scale is graduated into 4 segments not as shown above, it's a later on. 1 3/4" diameter Pt.no. AMLU3403 £25.95

BATTERY STATUS MONITOR

The Battery Status Monitor (BSM) is a LED voltmeter designed to monitor the Voltage across a 6 or 12V battery. The BSM is protected against reverse connection and unlike an ordinary Ammeter is immune to vibration. The BSM incorporates an ambient light sensor that dims the LED for night time. Intended for mounting in the headlamp shell or in or below the dashboard on cars.

This also serves as an ignition on warning light

Under 10.75 Volts. If the battery Voltage is very low, the LED will flash red slowly

.At 12V the battery is still low and the LED will maintain a constant red.

12.5 - 13.5V battery fully charged (engine not running) the LED will show orange.

Over 13.8V battery charging the LED shows green

Over 15.25V Overcharging. Fast red flash.

12V Pt.no. BSM12V01 £24.95 each

6V versions are also available, also £24.95 BSM6V01

STANDARD COILS

Pattern Lucas/PVL 6V and 12V coils . 1 5/8" (40MM) dia x 4 5/8" (118MM) Suits Commando, 750 Bonnie, Starfire etc. These also work with a twin fitted with a distributer.

Pt.nos. 6V COI19375 & 12V COI19376

£15.50 each

Genuine Lucas MA6 (6V) and MA12 (12V) coils are now available 1.9" (48MM) dia. and 4 5/8" (118MM) long

Pt.nos. 6V COI19378 COI19379

£18.50 each

Mounting clips to suit 40MM coils (top) COI10068 £3.95

Mounting clips to suit MA6 & MA12 coils COI10069 £3.95

Plated steel with nuts, bolts & washers

TWIN OUTPUT COILS 6V &12v

12V coil with 2 outputs for twin cylinder machines, modern or classic. 3 Ohm impedance for points or electronic ignition such as Boyer, Pazon, Rita etc. Comes complete with all mounting hardware & wiring.

The moulded in HT leads are 560MM (22 inches) long. Body 70MM (with mountings 97MM) x 43MM

These give the fattest blue spark you've ever seen Pt.no. COIICG08 �34.95 ea.

Now available for 6V systems. Comes complete with all mounting hardware & wiring. The moulded in HT leads are 500MM (20 inches) long.

Body 70MM (with mountings 120MM) x 43MM

Pt.no.COI731606 £34.95

These coils can also be used in place of a distributer, just using the contact breaker to fire both cylinders.

PLUG CAPS

These copies of the old Lodge spark plug cap have no supressive resistors so are particularly suitable for magneto equipped bikes. The copper core of the HT lead screws onto a threaded spike and the rubber sheath is then clamped round excluding water. Pt.no. PL76020 £1.50 each

NGK non-resistive plug caps for magneto ignitions. These are made from the same rigid plastic as the resistive caps below and incoporpate the rubber waterproof seals over the top of the plug & the HT lead.

Pt.no. PL76023 £2.50 each

These copies of the Lodge/KLG spark plug cap have no supressive resistors and are particularly suitable for magneto equipped bikes. These are fitted to the plug without the aluminium screw-on top. Pt.no. PL76024 £3.25 each

NGK supressed plug caps are sealed againgst moisture around both the plug and lead. Suitable for coil ignition bikes and cars.

Pt.no. PL76022 £3.25 each

HT LEAD

Copper cored HT lead sold by the metre £2.00

Pt.no HTLEAD10

SOLID STATE BATTERIES

See also batteries page

These lead/acid batteries are totally sealed and hold the acid in gel form soaked into matting making them totally leak proof and able to be mounted in any position.

Each battery is 6V and is supplied with a fuseholder. Two batteries can be connected to provide 6V or 12V, instructions are supplied.

These batteries are designed for long term use and under ideal conditions can last 8/10 years and they can be left for long periods without charging.

Each battery measures 135 x 75 x 51MM so 2 can be fitted inside the battery case below or mounted in place of a std. battery. They are not suitable for electric starts.

Cyclon cells are supplied charger, no further charging before use is required or desirable.

Two batteries connected for 6V or 12V have a capacity of 10AH and are suitable for use with dynamo equipped bikes fitted with a solid state Voltage regulator. Alternator bikes need a Zener diode or solid state Voltage regulator in 6V or 12V

One Cyclon cell costs £22.95 + £5.00 P&P Pt.no BATCYCLON

Two Cyclon cells costs £45.90 + £8.50 P&P

Battery case with one cell £42.00 + £6.00 P&P Pt.no BATCYCLON01

Battery case with two cells £65.00 + £8.50 P&P Pt.no BATCYCLON02

WESTCO 6V AGM BATTERY

These use the same advanced AGM technology as the 12V batteries above but are intended for use with 6V bikes

They have a large 13AH capacity

They are 105 x 70 x 140MM & fit the rubber battery boxes

£31.95 + £6.95 P&P Pt. no. BATES13-6

They have been designed to be a snug fit inside the new hard rubber battery case giving the maximum storage capacity.

Supplied together the cost is £49.95 + £8.50 P&P

What exactly is an AGM battery? An AGM (Absorbed Glass Mat) battery is a lead acid battery that is sealed using special pressure valves and is completely maintenance-free. The electrolyte is absorbed in separators consisting of a sponge like mass of matted glass fibres which uses a recombination reaction to prevent the escape of hydrogen and oxygen gases normally lost in a liquid lead-acid battery. They are non-spillable, and therefore can be operated in virtually any position. However, upside-down installation is not recommended. Once fully charged they can be left for long periods without discharging or needing recharging. They have a very high discharge current ensuring excellant cold starting characteristics.

6V BATTERIES

These 6V Lead acid batteries are copies of the 1940/s/50s Chloride/ Exide batteries and measure 4 1/2" x 3 3/8" x 6" (114 x 87 x 155MM). They are approximately 8AH and weigh 2.3Kilo. They are supplied dry charged to be filled with acid at your local bike shop.

The cost is £26.00 + £8.50 P&P

Pt.no.BAT6VCHL OUT OF STOCK

PATTERN LUCAS ALTETTE

Copies of the original Lucas Altette horns as fitted to many British bikes of the 1940s and 50s are now available.

These are accurate reproductions featuring a cast body and chrome bezel as per the originals and are just over 4 � inches in diameter. £72.95

6V Pt.no. ALTH11048

12V Pt.no. ALTH11048B

Postage on Altettes is £6.00

Mounting brackets are also available at £9.45 Single hole Pt.no. ALTH11049s

Twin mounting hole Pt.no. ALTH11049

LUCAS ALTETTE UPGRADE KIT

This kit will brighten your original Lucas Altette horn as fitted to many British bikes of the 1940s and early 50s. As in the photo all dome nuts and the locknut are supplied in chrome along with the bezel.

The only difference between this and the original is that the word Lucas is missing.

Outside diameter 4.55" Inside 2.75"

Pt.no. ALTH11050 £17.95

Click here for details of a simple and cheap way to fix a silent Altette horn.

HORNS

Minature horns in 6V & 12V. Now alloy appearance.

70MM in dia, 100db. £4.00

Pt.no. HORS6V01 & HORS12V01

P&P £2.00 if ordered separately

Chrome horns. 6V & 12V 4.0" in dia.. 110db, slitted or plain.

Slitted 12V Pt.no. HORHEL004 £9.95

Plain 12V Pt.no. HOR12VCH £9.95

Slitted 6V Pt.no.HORHEL003 £9.95

HORN PUSHES AND DIPSWITCHES

		Chrome handle-bar button earths the connecting lead and can be used for horns or magneto cut-outs. Lucas pattern Pt.no. SW16006 �9.50
		Classic handle-bar button earths the connecting lead and can be used for horns or magneto cut-outs. Red or black button. Pt.no. Red SWK522R �3.95 Pt.no. Black SWK522B �3.95
		Lucas pattern dipswitch/horn button Pt.no.SW19231£11.95
		Miller pattern dipswitch/horn button Pt.no SW86004 £11.95
		Dipswitch only. Can also be used as an on/off switch. Pt.no SW15431 £6.95