Good Morning Sunbeam lovers everywhere.
                         Today's date is 7th October 2024.

I must say I am very pleased with sales especially to Australia, lots of Sunbeams 'down under'.
Thank you very much, seems the new Mark 3 ignition unit is proving to be a big hit.

Regards    John



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Just to let everyone know : New Product :

Twelve volt POSITIVE earth Beamspark Mk.3 unit, now available from stock.
      The kit is a bit more expensive at £110 due to one off production.



      I have kits all tested complete with installation instructions and 24 months warranty to go out the door .

      Let me know your requirements !

  Six volt positive earth kit, consisting of  : Mark 3 six volt positive earth ignition unit.
                                                                       : Twin output six volt coil.
                                                                       : Standard or Slimline distributor cap ( black or silver ).
                                             Post free UK     : £ 105

     Twelve volt negative earth kit,                : Mark 2 12 vo;t negative earth ignition unit.
                                                                        : Twin output twelve volt coil.
                                                                        : Standard or Slimline distributor cap ( black or silver ).
                                             Post free UK      : £105

      Twelve volt positive earth kit,                 : Mark 3 positive earth ignition unit. ( special )
                                                                         : Twin output twelve volt coil.
                                                                         : Standard or Slimline distributor cap ( black or silver ).
                                             Post free UK       : £110 


 My name is : John Moseley

Please pay to my Bank Account for immediate delivery.

Bank sort code : 20-41-12
Bank account number : 73145123

My e mail address is [email protected]     for any questions. Thank You.

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This is the new Mark 3 Slimline distributor blanking cap. Available in satin black finish or brushed aluminium as shown in the two pictures.
Available now as  part of the Beamspark kit ( 6 or 12 volt ) at no extra on the kit price. 

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My ignition kits are hand made by me and are despatched after 24 hours of an order being placed. The electronics are tested on tthe bench for 24 hours and kits come with a no quibble guarantee of two years. Comprehensive pictorial installation instructions included.

 *** 6 volt Mark 3 Beamspark ignition unit,pictured above***

    Hand machined distributor blanking cap in satin black or brushed aluminium finish.

                              Twin output ignition coil 
   
                             Standard or Slimline kit £105.             

                                    Please pay into my bank account                

                                    Bank sort code : 20 - 41 - 12

                                    Bank account number : 73145123

                                    Bank name : Barclays Bank  Stevenage.
                         


                    Completely interchangeable with the Mark 2 unit.

     Same four wires as before ------- +tive , -tive, cb/points, hv output to coil.

           ***Timing light built in for easy spot on Top Dead Centre.***

           HIGH energy output for those engines that need a little more 'oomph' in the sparks department along with the new HENDLER ignition coils now supplied as part of the kit.
               
   
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                 Beamspark kit 12  volt negative earth
      ( Ignition unit, standard or slimline distributor cap and coil £105 )

                  Immediate delivery on all kits.

                  Comes with complete fitting instructions.

                            Two years warranty on all kits.

                               Please pay into my bank account                

                                              Bank sort code : 20 - 41 - 12

                                        Bank account number : 73145123

                                   Bank name : Barclays Bank  Stevenage.


              IBAN GB23 BUKB 204112 73145123

   


                                        Preferred e mail addresses

                          [email protected]

               [email protected]

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                           [email protected]

                                                               

                    
                                                                                
The website can also be found at                             www.sunbeams.co
                                                                                    www.sunbeams.website

It has to be pointed out that the six and twelve volt Beamsparks were developed for the Sunbeam S7 and S8. They make the contact breaker last for many thousands of miles without any adjustment and of course replace the worn distributor cap and rotor.

Buy a 6 volt or 12 volt  Beamspark unit at £ 40.
Buy a 6 volt or 12 volt coil at £ 40
Buy an aluminium distributor blanking cap at £ 40
Buy a Slimline distributor blanking cap  at £ 40


Buy all three items for £105

All items post free in the UK.
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I also forgot to mention that my Beamspark units fit very well on Morris Minor cars, well really anything with contact breaker points and coil ignition, both six and twelve volt !


This website is a collection of thoughts and ideas some of which have been put into practice, other ideas are still out there. The Sunbeam bike lends itself well to modern upgrades and improvements while still retaining its original charm. I hope you enjoy perusing my webpages, please feel free to contact me.

  
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I would like to make a few comments about the Sunbeam engine and its design that may dispel some misconceptions that seem to abound with British motorcycle engines.
Overheating of rear cylinders.........need I say more on the Ariel Square Four !  It seems that everyone owned one or knew someone that owned one and the rear cylinders overheated ! If there was that many Square Fours sold they would still be selling them today !
Basically what I am getting at is the air cooled engine has to run hot to be efficient. Yes we know the Sunbeam has a rear cylinder but what everyone forgets is the engine is physically bolted to a ruddy great cast aluminium gearbox which is a huge heatsink. Remember the Sunbeam only turns out 25 horsepower and that is only at maximum revs. So each cylinder can turn out 12 horsepower max.
The Sunbeam engine is oil cooled as well as air cooled, that is why the sump is bolted solidly to the rest of the engine, why do you think there are so many holding studs ?
Running the engine hot gets rid of condensation in the cambox and in the space in the crankcase. Hot oil flows better to to the crank and camshaft. Hot oil boils off condensation and keeps clean.The oil pressure in the Sunbeam is only about 35 PSI, which is OK as it is not oil pressure that is important but oil flow capacity. Keeping the oil flowing at maximum capacity can only be achieved if the oil is hot.
On several runs last year round Holland Belgium and France top speed recorded on my Sunbeam was 80 mph, this was only for a mile approximately whilst overtaking a convoy of petrol tankers on a busy motorway in Belgium. Most of the time the bike ran at 60 mph in the company of two Goldwing Aspencades for two to three hours each day. Upon returning home after 900 miles the engine was ticking over perfectly and still does today. What I can say is fitting a stainless steel exhaust system kept the cylinder head temperature even by absorbing any hot spots so that carburation kept spot on. In other words tickover remained fairly constant whatever the engine temperature.

So there you have some of my opinions.