Poor Man’s Electronic Ignition

 

                 This is an experiment I have done on my roughie bike, which I will use to get me back and forth to work. The idea is I wish to ride

                  around OZ in the future and this ignition set up is cheap and parts are plentiful at any wreakers in Australia. The reluctor and

                  pickup came from an old 6 cylinder Valiant Charger distributor and cost me $25.oo. The ignition module is a Champion CM410

                   and cost me $35.oo new.

 

                                                                                 

 

                   This picture is of the module upside down. Note the 2 small plastic lumps in the foreground corners of the module that must be           

                    ground down for it to sit flat on the heat sink. A silicon heat transfer paste is supplied with the module and is applied to the metal

                     side before fitting to the heat sink.

 

                                                        

 

                   Here is the 6 cylinder reluctor on the left with 4 points machined off leaving two at 180 deg apart. Note: two 2ba grub screws

                   [68-3118] are drilled and tapped into the reluctor to hold it in position on the A/A unit. On the right is the top of the original

                    A/A unit where the points ran. It has been ground down to except the reluctor.

 

                                                            

 

                   Here is the original BSA point’s plate. Note the centre has been machined larger removing the protrusion that was there originally

                    also the 2 protrusions  that were on the left side of the plate have been removed but those on the right have remained. Looking

                    carefully you will see a witness mark in the centre that is the arc on which the pickup must be mounted so as to give correct

                    clearance to the reluctor. This dimension came from the original pickup plate. At the time of this pic I still had not drilled the new

                    holes to mount the pickup.

 

 

    This picture shows the pickup mounted on the plate

 

                                                                      

                   Here is the pickup and reluctor mounted on the bike. I gave 10 thou clearance between the reluctor and pickup.

                   This is the back of the outer timing cover. Note that one of the point’s plate cover screw positions has had the back ground off it.

                    This is done so the outer cover can sit flush when the pickup is in place.

                        This shows the cover in place.

               

                   This is the finned heat sink I have mounted my ignition module, $5.00 rectifier and zener on. It bolts on under the fuel tank

                   I am using a zener from a 79 Bonny and its a - earth system.

                 This is my twin tower ignition coil used on the Holden v6 Commodore. Its .5 OHMS and cost $43.00.Note that there is no + positive

                 or- negative markings on the Coil and it does not mater which way it is connected up.

                      At this point in time i have not put many miles on the bike but it has fired up 1st kick most times.ENJOY