27-10-2023, 08:04 PM
Hi Peter
This is very likely to be the electronic flasher unit being upset by interference from the ignition. You may well find that a set of resistive suppressors on the spark plug connectors does the trick. Or, as suggested, use an old fashioned thermal type flasher which will be immune.
Although it's probably academic, the "Road Vehicles Lighting Regulations 1989" calls for a wattage between 15 and 36 for indicator lamps without an approval mark, and that it is "Plainly visible from a reasonable distance". The common filament bulb standard is 21 watts for 12 volt systems. For 6 volts you may also find bulbs intended for motorbikes which are often 18 watts.
This is very likely to be the electronic flasher unit being upset by interference from the ignition. You may well find that a set of resistive suppressors on the spark plug connectors does the trick. Or, as suggested, use an old fashioned thermal type flasher which will be immune.
Although it's probably academic, the "Road Vehicles Lighting Regulations 1989" calls for a wattage between 15 and 36 for indicator lamps without an approval mark, and that it is "Plainly visible from a reasonable distance". The common filament bulb standard is 21 watts for 12 volt systems. For 6 volts you may also find bulbs intended for motorbikes which are often 18 watts.