Boyer bransden dual coil. 1 9) Using the two coil link wires join the coils as in Fig.

Boyer bransden dual coil KIT00262 - Kit contains. Buy It Now +$21. "THE BOYER-BRANSDEN MKI 11|AND ALTERNATOR POWERED IGNITION SYSTEMS|The Boyer-Bransden MK1 11 is a contactless ignition system utilising an advanced and patented trigger switching system and featuring electronic, advance and retard. This kit works with both positive earth or negative earth. 5 ohms. e. One coil failing can stop sparking but if it becomes short circuit to its case the coils after it in the chain will stop working. which is powered (fused) from the positive post on the battery. I think Boyer calls for 4 ohms, but check the data to be sure. Part Number KIT00293 Feb 6, 2014 · Hi, As Nick says, even if one or both of the coils have a problem, they aren't the cause of the "chattering"; however, if you want to satisfy yourself, a $25 twin-lead coil is probably the cheapest 'substitution test' you'll get. Call +1-720-570-7884 for the LARGEST SELECTION and Expert Advice. ) Micro Power Digital Ignition Kits Including Coils Code: Description: KIT00280: TRIUMPH / BSA SINGLE SIDE POINTS 12V * KIT00281: TRIUMPH / BSA UNIT Jan 15, 2025 · Genuine Boyer Bransden. See Fig. Dual lead HT output. It features a polypropylene case and 4. The miniature digital ignition coils have a very low primary resistance and a very high quality iron core. Boyer Bransden Electronic Ignition Replacement Black Box Triumph BSA Norton Twins 9 reviews $125. 24) Refit timing cover. com COIL00004 VOLT TWIN OUTPUT IGNITION COIL FOR USE WITH BOYFR 3RANSDEN ELECTRONIC IGNITION SYSTEMS Today, Boyer Bransden produce one of the most efficient ignition systems in the world. The best single modification for XS650s. With over 40 years behind them, made in England, Boyer is considered by most to be "the choice" when it comes to electronic ignition systems. Much smoother, easier starting. Mar 3, 2010 · Hi bikerisme The Boyer Bransden unit is designed to replace points ignition using the original coil/s. derosnopS. HT lead is screwed in and can be replaced. Brand New. 59 delivery. 5k ohms at 20 degrees C Mounting holes diameter 6. 6 ohms at 20 degrees C; Secondary resistance 12. COIL 4 NORTON TRIUMPH BSA BOYER BRANSDEN 12V 12 VOLT DUAL OUTPUT IGNITION *** | eBay Aug 9, 2009 · Trispark essentially requires that of a normal '12V' coil - i. E coil brackets will not fit but the 40MM brackets are available to purchase new. set up properly they all seem to work with less maintenance than the point setup and seem to give a more reliable experience with these old bikes. The bike is equipped with a complete Boyer system including power box and twin coil outfit bought from Mick Hemming Motorcycles. Boyer Bransden Troubleshooting. 2x 6v coils in series are equal to 1x 12v coil You could fit instead a dual output coil rated at 4. 12V Coil – Use this dual lead coil by Emgo with any of our electronic ignitions (Tri-Spark, Boyer, Pazon, Sparx) for optimum spark. Opens in a new window or tab. The only difference being now it has spark, and it will start and run for a few seconds on alcohol. 99. Jun 13, 2022 · FWIW, I've been using the stock-type dual ignition coils (from Old Britts) in my Commando since '06, when I removed the single coil and Boyer EI that were on the bike when I bought it. Boyer Bransden have also provided me with some additional information: 24. Dec 12, 2024 · Here you have a Brand new Boyer Bransden, Micro-Power high power 12 Volt electronic ignition system. Checked Compression (Fine), valve lash (Fine) took of Amal carbs and cleaned (fine). Pictured above is a 1969 Commando S 850 cc. Dec 7, 2019 · Boyer Dual Output Ignition Coil 12V For use with Pazon Ignition Systems, suitable for various makes and models including BSA & Triumph Twins, Royal Enfield, plus various Suzuki and Kawasaki SPECIFICATIONS: - Primary resistance 4. It is possible that a working coil is shorting to the case, and stopping the other coils in the chain from working. All systems are carefully hand built in the UK under the ethos of supplying hardy products that last. I do not know if this will fit any other applications. The leads measure 21″, mounting holes are approximately 3. Nov 24, 2013 · So. The first commercially produced Boyer-Bransden electronic ignition was launched in 1969 for Boyer of Bromley, a then famous motorcycle dealership whose Triumph race team were experiencing trouble On other machines the coils are used singularly or connected in a chain in series. 750's came with dual points. I had one on a '77 for about 70k miles, no issues; I used the Boyer to fire a Dyna booster on a dual plug Shop 12v Points Type Ignition Coil Dual HT Leads 90mm at Motorcycle Products Ltd. Changed plugs (fine) Switched plug wires from the Gill micro coil, left side fires right side still doesn't. Dual Lead 12 Volt Ignition Coil, Made in UK by Boyer Bransden ( Alt #'s CS-3586, Boyer Coil 00004) BOYER BRANSDEN ELECTRONICS LIMITED Frindsbury House. boyer bransden electronics ltd frindsbury house, cox lane, detling, maidstone, kent me14 3he england telephone: 01622 730939 fax: 01622 730930 kit 00103 micro-digital ignition system yamaha xs650 fitting instructions 1) remove the covers from the c. 00. Two aluminium spacers are required plus at least 80 square cm of cold surface area to provide heat sinking. Boyer Bransden : Use with electronic ignition : Not suitable for Micro Digital! Years: 1959-1978. 4. This kit is for 12 volt twin-cylinder BSA and Triumph motorcycles. 29 Wassell Wassell 200 Watt High Output Stator - fits 500/650/750c. A good mounting onto the frame or chassis will normally be adequate, but an extra aluminium heatsink is a good way to keep the coil output at maximum even at high temperatures. 5 secondary resistance. Fitting instructions (including pictures and diagrams) Transistor box; Stator plate; Magnetic rotor; Dual output Digital Coil; HT Lead; NGK Plug cap; Fittings / connectors Aug 13, 2014 · The correct coils (40MM X 111MM in size ) that boyer use are still made in germany , they are a lot smaller in over all size and a lot lighter but the only downfall is that the O. I just want the best setup. 5 to 13. 2 wires with male and female bullet connectors on spade terminals. A single dual output coil can be used as long as its primary resistance is more than 3 ohms. 5 ohm or more primary winding resistance dual output coil will give the best results. All ignition units come with a 5 year warranty. dismantle and Aug 15, 2019 · Just fitted my Boyer kit. Kit Consists of; Transistor Box BOX00213; Dual Output Coil; STA00293 Stator Plate; ROT00293 Magnetic Rotor; 4mm ht coil terminals; Rubber Boots; 1mm copper cored ht wire; 2x LBSOF Spark Plug Caps; Tie Straps . Electronic Ignition Conversion Kit for Triples, BSA A75, Rocket 3, Triumph T150, T160, Made in UK by Boyer Bransden ( Alt 3’s Boyer Kit 00054, CS-3577 ) 8) Connect the red wire to the positive (+) terminal of ignition coil no. Triumph, Norton, BSA, Bonneville, Commando, Lightning, etc. I've fried 2 Dynas (one II, one III) in the old days, and two Accell units. The Tri spark is a cool unit and very easy to set up and I like the fact of the Boyer Micro Power Ignition Kit. As these coils are controlled by current input and not voltage, up to four coils can be run in series from one Boyer Bransden Installation instructions. "Engines function best with a retarded spark for starting and low revs, but need ignition advance to run at high Single Fire Ignition and Coil Single or Dual Fire 1994 Electronic Ignition for Triumph and BSA Motorcycles 500 / 650 / 750 c. 99 Dual-Fire Ignition Coil - 2007-21 Harley 24) Refit timing cover. Tape it & do not use it. have one output to the coils; so, if one coil is "sparking", the box must be working, only the 'non-sparking' coil, HT lead, cap or plug aren't working. The latest Micro-Power system is supplied with miniature digital coils matched to the unit, for incredible performance. (6 VOLT COILS REQ. 22 Add to Cart. See if both plugs will fire on the side that works to eliminate a possible bad plug and if both plugs do not fire on the none working side I would suspect a bad plug wire, coil or one of the electronic trigger distributor pick ups. Mar 6, 2021 · Update. 99 Boyer Bransden Dual Lead Ignition Coil – 12 Volt $ 135. Boyer have provided me with a wiring diagram for a single plug application using stock coils, Boyer say that the wiring for dual plugging coils is the same and that the the coils should be 'wired in series'. The standard 6 volt coils can short out internally to the metal case, check for damage by the mounting clamps. 6 ohm primary resistance, 12. This should be mounted The total ignition coil resistance should not be lower than 3. It came with two seperate coils, can't reference the type as are fitted but if needs be can take the tank off and check. 5000 ohm This system is designed to work only with our special digital power ignition coils (type 00007 single output, or 00008 dual output) which are included in the kits. Buy It Now. Tagged as: 17M2, 17M6, boyer bransden, coil, coil resistance, faulty coil, What differs from original is that it is modernized with a Boyer system. 2-4. ANY ALTERATION OF COMPONENTS VOIDS WARRANTEE. l. I fitted my pair of coils using the front mounting bolt and stand off spacers rather than the old coil bracket. But that requires a good points cam. All fits easily with plenty of room. This kit is for Norton Commando and Norton Atlas motorcycles. boyer bransden dual lead coil for use on twin cylinder british motorcycles fitted with electronic ignitions including boyer, tri-spark, pazon and sparx. 5 ohms? Thank you in advance. My battery negative post will be connected to the ground post in my box. I went through the parts and found an electronic ignition by Boyer Bransden, complete with installation instructions. 5″ apart. If you wire those 2x 6v coils in series the load (ohms) is halved, this set up will give you a 1 ohm over both coils the same setup with 2x 12v coils will give you a 2ohm load over both coils when used in parallel Apr 14, 2013 · So, I could use my stock 12 v Bonny coils . Rated 0 out of 5 $ 161. 1. Electronic Ignition Conversion Kit for Norton, Made in UK by Boyer Bransden ( Alt #'s Boyer Kit 00053, CS-3575 ) Tri-Spark Dual Lead Ignition Coil – 12 Volt Oct 31, 2012 · I don't really understand advance, curve, etc relative to ignition, and what electronic ignition eliminates, and how a dual plugged system affects the above. unit 6 or 12 volt positive earth coil and contact breaker ignition systems (228k) KIT00072: Rev Limiter: KIT00073 (BOX00015) Micro MK. I believe 4. 2 ohms as supplied by Boyer. $129. Jul 14, 2014 · "For low compression engines (less than 9:1) two 12 volt coils connected in series can be used," Yes, they do go one and and say, "but we strongly recommend running with two six volt coils connected in series or one 12 volt dual output coil with a primary resistance of 3 to 4. With this system two 12 volt coils can be used as long as they are in good order. So a recap: I've currently got a boyer brandsen mk3 electronic ignition (black box) and two red dyna coils, I couldn't find the exact pair I have anywhere online. By using our services, you agree to our use of cookies. Boyer Bransden Electronic Ignition . This should be mounted on the 8) Connect the red wire to the positive (+) terminal of ignition coil no. Cox Street, Detling Maidstone, Kent ME' 4 3HE Telephone: 01622 730939 Facsimile: 01622 730930 Help Line: Mon-Fri 4pm-5pm 01622 737040 Website: mvw. 00 Since then, Ernie Bransden's company, Boyer-Bransden, have produced many thousands of miniature ignition units for motorcycles and other applications. Check the pickups (fine) I'm thinking the coil. I have consumed 2 Boyer units during 22 years but the dual coils part of the kit does not fail. com Email: Mail@BoyerBransden. Boyer Bransden BMW pre-1979 Micro Digital electronic ignition kit Electronic ignition conversion kit, designed to fit the BMW Airhead Boxer /5, /6 and early /7 Series model produced before September 1978, fitted with the exposed contact breakers and the ATU (auto advance) ignition mechanism enclosed attached to the front tip of the camshaft. After much debate on here, i put some old 6 volt coils on and the bike ran better than it ever had before. How do I do that? Charles Jun 5, 2017 · Here’s what I found: 1- Boyer Bransden out of the UK has a “Micro Digital” Kit that they confirmed would work with my bike, 2- from an old thread on DTT I heard of a company called 7th Gear Designs that was making a kit, 3- I know that you can retrofit an electronic ignition from the later KZ440. Boyer Dual Output Ignition Coil 12V. Dual Lead 12 Volt Ignition Coil, Made in UK by Boyer Bransden ( Alt #'s CS-3586, Boyer Coil 00004 ) This Boyer Bransden Dual Lead 12V Coil is for use with vintage British twin motorcycles using electronic ignitions such as Pazon, Tri-Spark, Boyer, and Sparx. 12V, 4. Any suggestions on a replacement for a micro dual coil. 1 9) Using the two coil link wires join the coils as in Fig. I used the red/white wire ( the key on hot wire) that comes out of the wiring harness ( from the kill switch ) up by the coil and used it only for a trigger wire for the relay. 9) Using the two coil link wires join the coils as in Fig. Dual Lead 12 Volt Ignition Coil, Made in UK by Boyer Bransden ( Alt #'s CS-3586, Boyer Coil 00004) boyer bransden electronics ltd frindsbury house, cox lane, detling, maidstone, kent me14 3he england telephone: 01622 730939 fax: 01622 730930 kit 00281 micro-power ignition system for triumph/bsa. Aug 18, 2019 · The other common upgrade is to move from dual coils to dual tower single coil. Remove the old Ignition coil. Triumph / BSA / Norton Buy Ht Coil Lead and get the best deals at the lowest prices on eBay! Great Savings & Free Delivery / Collection on many items Ignition coil : 12 volt dual output : 4. Nov 9, 2024 · The latest Micro-Power system is supplied with miniature digital coils matched to the unit, for incredible performance. The HT cables are detachable and the primary connections are by spade terminals. May 20, 2009 · Boyer sells a dual lead coil that is balanced for these units. " Boyer has the same information in his instruction sheet! Apr 1, 2014 · As Nick says, all Boyer-Bransden e. 1979 12V: KIT00297: BMW 1979/1980 12V: MK3 Ignition Boxes (Black) Code Jun 27, 2021 · black wire to the negative spade connector on the coil. 90mm A cure may be available by disconnecting the red fused wire that goes from the Boyer to the battery & the left (+15) coil terminal. 5k ohms at 20 degrees C Dual Lead 12 Volt Ignition Coil, Made in UK by Boyer Bransden ( Alt #'s CS-3586, Boyer Coil 00004) Boyer Ignitions Dual Lead Coil By Boyer. HT lead length: 584mm (23"). Instead of reaching full-advance at about 2,500 rpm (less with a worn advance unit), the Boyer reaches full advance at about 4k rpm. British Spares Ltd offer full testing facilities, spares back up, and warranty claims processing for Boyer Bransden ignition systems and components. Above is a Norton Dominator De Luxe, 500 cc 1962. unit 6 or 12 volt negative earth coil and contact breaker ignition systems (176k) KIT00070 (BOX00070) Positive i. Single and Dual output types are available. This Boyer Bransden Dual Lead 12V Coil is for use with vintage British twin motorcycles using electronic ignitions such as Pazon, Tri-Spark, Boyer, and Sparx. Negative i. - Kit 00052 Boyer Bransden This product is New - Dual Output Ignition Coil Micro Power Boyer Bransden COIL0008 blue box You may also like LUCAS style rear stop switch taillight brake Norton Triumph 34815 118SA 99-1028 $19. Jan 6, 2017 · This is not an issue according to Boyer Bransden because the alignment of the paint spot is is just for the initial setup. However, you can't compare the two - Trispark fires coils individually, like points; Pazon is like Rita or Boyer-Bransden - fires all coils whenever one cylinder requires a spark. WARNING- SERIOUS HOT SPARK-Will jump 6x gap of stock Jun 6, 2007 · Boyer The main advantage of a Boyer is the much more gentle advance curve. For use with Pazon Ignition Systems, suitable for various makes and models including BSA & Triumph Twins, Royal Enfield, plus various Suzuki and Kawasaki. There is also a Kawasaki (900-1000 fours) Emgo coil that is cheaper and does the job quite nicely. Suitable for Honda CB250, CB350, CL250, CL350. The final positioning of the pickup coil PCB relative to the magnets is determined using the strobe light at high rpm as done above. Oct 26, 2021 · I picked up power from the battery, to a relay, through a 10 amp inline fuse and straight to the Boyer. I take this a Pointless ignition system. A single, dual output coil can be used as long as its primary resistance is more than 3 ohms. Add to Wishlist. Sponsored. Fitting instructions (including pictures and diagrams) Transistor box; Stator plate; Magnetic rotor; Dual output Digital Coil; HT Lead; NGK Plug cap; Fittings / connectors Boyer Bransden Dual Lead 12V Coil British Twins with Electronic Ignition. For twin plug models, use two dual output coils (connected in series, each coil firing both cylinders). Code: Description: KIT00286: BMW PRE. This should be mounted on the Aug 8, 2020 · When i bought the Boyer unit in 1998, the instructions said to use the 12 volt coils so i did for 18 years. 4) For low compression engines two 12 volt coils (4 Ohm) in series are satisfactory, for racing and high compression engines two 6 volt coils (2 Ohm) in series, or one 12 volt 3. 4 days ago · I run a Boyer and a harley coil on a lot of my bikes without any issues, There are also a few bikes with the tri spark and other brands running in and out of the shop. . 12v points system ignition coil for bikes fitted with a distributor. Buy Boyer Bransden online with FREE SHIPPING to US48. b. 5 to 4. around the range 3. 5m m (5mm with aluminium spacer) , pitch 90mm Weight boyer bransden electronics ltd frindsbury house, cox lane, detling, maidstone, kent me14 3he england telephone: 01622 730939 fax: 01622 730930 kit 00103 micro-digital ignition system yamaha xs650 fitting instructions 1) remove the covers from the c. To low and the current flow will cook the unit. i. leads if required. What HT leads do i need to use with Boyer Bransden ignition system? For all our motorcycle ignition systems, copper wire leads with 5000 Ohm suppressed plug cap is our preferred method, although the MK4 systems can be used without any suppression on the H. I'm wondering , though, which coils will give a better spark, 6 or 12 ? In am looking for something like a 2 plug 12 v Japanese coil, or a 12 v 2 lead HD high output, or stock HD coil, or Ducati 12 v coils, all of which I have laying around. Up to three of these coils may be run from one ignition box, providing very high energy sparks for single, or twin plug cylinder heads. The bike came with a box of spare parts. Unit can also work with both positive or negative ground. The Boyer-Bransden ignition has been updated. d. Dual 6 volt coils (or one 12 volt dual output coil) is highly recommend for twins. The old style points ignition coil has a primary resistance of about 3 ohms and modern electronic ignition coils are about 1/2 ohm, any coils used with the Boyer must be the early 3 ohm type, these can be obtained in the double ended type, not sure if the same applies to the Pazon unit but Jun 11, 2008 · It'll work. Mount the Micro Power coil in a ventilated position using its mounting bracket holes. PN# TBS-3586. With over 40 years behind them, made in England, Boyer is considered by most to be "the May 3, 2021 · Appears the Boyer mirco_mkIII ignition system is working or both plugs would not be firing. 15) Connect the black lead from the transistor box to the negative (-) terminal of the ignition coil. red wire with a dual spade connector to the positive spade on the coil, with a second connection to the ignition post on my three position ignition switch. BoyerBransden. These come with a mini dual output coil and plug caps. It is important that these coils be mounted to a heat sink or have a good flow of air across them. 5 Ohm primary resistance . b) Stator plate (round printed circuit with two coils and wires) ls and wires) g) HT Coil, dual output (COIL g) HT Coil, dual output (COIL00008) g) HT Coil, dual output (COIL00008) 00008) c) Magnetic rotor (round plated steel unit with two magnets fitted) magnets fitted) hhhh)))) 2 X M5X25 Bolts,washers,nuts 2 X M5X25 Bolts,washers,nuts 2 X Jul 19, 2021 · The points cam was fried (no lube, scored, really bad dual image) so the Boyer addressed that, but my other two bikes (R75/5 and R90/6) with Dyna boosters run really well. 16) Connect the red lead from the transistor box to the positive (+ ) terminal of the ignition coil, and also to a good earth point Boyer Bransden Boyer Ignitions Dual Lead Coil By Boyer. I've placed the Boyer thus far on an 75R60/6, 77RS, 64 Triumph T120R, and have already bought one for my 71 R75/5 project bike. Cookies help us deliver our services. SPECIFICATIONS: - Primary resistance 4. He's got rid of connectors wherever possible, and rerouted things to make it easier and more logical. 12v twin cylinder motor cycles this system will only work with the special dual output digital ignition coil type 00008. Dual Lead 12 Volt Ignition Coil, Made in UK by Boyer Bransden ( Alt #'s CS-3586, Boyer Coil 00004 ) Two aluminium spacers are required plus at least 80 square cm of cold surface area to provide heat sinking. Free shipping. Dual Lead 12 Volt Ignition Coil, Made in UK by Boyer Bransden ( Alt #'s CS-3586, Boyer Coil 00004 ) Boyer Bransden Dual Lead 12V Coil British Twins with Electronic Ignition Boyer Bransden. 5 Ohms. 5k ohm secondary resistance. Boyer Bransden Dual Lead Ignition Coil – 12 Volt $ 135. unit and advancer unit on the cylinder head. The standard 6 volt coils do short out to the metal case, check for damage by the mounting clamps. They have worked perfectly with the OEM ignition from '06-'08 and then the current Trispark which I installed in '08. 19) Route the sleeved pair of Green and LK/WH wires through the frame to the ignition coil terminals, connect the LK/WH to the coil + [ and the Green to coil -) 20) Plug the single LK/WH wire with the male connector to the black/white wire dual connector on the bikes loom that connected to the original ignition coil. Buying Dual replacement 6 volt coils from eBay is cheap. Their lives will be shortened if they are allowed to get too hot. Power Box, Single Phase Regulator for Alternators, 180 Watt Pos/Neg Ground 12 Volt, Made in UK by Boyer Bransden ( Alt #’s Boyer Box 00108, CS-3572A ) The following is a reprint of the installation sheet supplied by Boyer Bransden: BOYER BRANSDEN ELECIRQNICS LTD Frindsbury House, Cox Lane, Detling. The Boyer bike is dual plugged, so I need something for that. 4- I heard rumors that Charlie’s Place New Boyer - Bransden Dual Output Coil 12V__Norton Triumph BSA. Replacement 7mm HT lead one metre SKU: 023734 or five metres SKU: 005076. 95. dismantle and Jul 3, 2006 · Although not asked, I will give an endorsement for the Boyer micro-digitial electronic ignition unit from Stan Smith at Rocky Point. Connect both green wires to that coil terminal. :bigt As to how long it'll last, you have Oct 26, 2016 · And that’s about the way it still sits. This system is designed to work only with our special digital power ignition coils (type 00007 single output, or 00008 dual output) which are included in the kits. Boyer Bransden Parts & Wiring. Boyer Bransden MK3 electronic ignition Boyer Bransden Power Box regulator/rectifier; Greg Marsh Enterprises – Custom Wiring Diagram Worth looking at this one - Greg has done a huge amount of work building and simplifying his Commando harness. 6 OHMS primary resistance and 12. Refit timing cover. Boyer Bransden Micro Power Digital Ignition Kit with Coil . Feb 19, 2006 · I am using an old set of dyna brown coils together with a Boyer ignition, the dyna coils dont have any + or - marks. 6 ohms at 20 degrees C Secondary resistance 12. 12 Volt Ignition Coil, Made in China by Tri-Spark Boyer Bransden Electronic Ignition Kit – BSA & Triumph Singles with 6 Volt Distributor CD-450 $ 200. 2 Ohm. 2 to 4. Transistor Box (black box with wires) Part number JRC 3576A (BOX00023); Stator Plate (round printed circuit board with two coils) Part number JRC 3576S (STA00152) Feb 18, 2022 · The Boyer Bransden Micro MKIV is the current iteration of their Electronic Ignition system, and offers a few improvements over the MKIII – including a slightly optimized timing curve which improves stability at engine start, plus the ability for the electronics to run at lower voltages (10 volts) Dec 2, 2024 · As you're talking about a Boyer-Bransden EI, the coil/s must be DC, the kill button or on/off switch must be in the White wire between ignition switch and B-B Transistor Box, the button/switch must simply break continuity in the White wire, it must not "ground". This kit requires a 12 Volt set-up. c. Moreover, if the coils are connected to the box correctly, at least the LT part of the 'non-sparking' coil must be working too. 10) fit the transistor box in any convenient place near to the ignition coils, on top of the battery or remove the condenser pack, undo the three condensers from the bracket and replace. BOYER BRANSDEN ELECTRONICS LTD Frindsbury House, cox With over 40 years behind them, made in England, Boyer is considered by most to be "the choice" when it comes to electronic ignition systems. I suppose the basic problem is I'm not too sure what a relay is. MAIDSTONE, Kent ME14 3HE ENGLAND Telephone: 01622 730939 Fax: 01622 730930 BOYER BRANSDEN ELECTRONIC IGNITION SYSTEM FOR NORTON COMMANDO TYPE MK3 Comprising:- Product Description. 3 ignition system for Kawasaki Z400J - Z1000, Z1 with standard ignition coils only Boyer Bransden Micro digital ignition kit Including dual output ignition coil available from Motorworks, the UKs number 1 for BMW motorcycle parts Take it from me! I have been running a Boyer Brandsen ignition in my Triumph Bonneville & BSA Lightning since 1992 and have covered thousands of miles with out any problems. Two aluminium spacers are required plus at least 80 square cm of cold surface area to provide heat sinking. Just make sure the coil you use has the correct primary winding resistance. 1 10) Fit the transistor box in any convenient place near to the ignition coils, on top of the battery or remove the condenser pack, undo the three condensers from the bracket and replace. 5-13. Aug 23, 2018 · Boyer MKIV Ignition System For 12V Triumph/BSA Twin Cylinder JRC 3576 . T. H ere you have a Brand new Boyer Bransden, Micro-Power high power 12 Volt electronic ignition system. nwy shutk wta oklrc zaqgdabr hlssvk tpawtjcs rsnoc lit ywh