Hi chaps,can anyone tell me what wattage size is the standard headlamp bulb for 1974 Z1A,just checking spare bulbs for Germany,Had a spare 35W/35W in the garage which i presumed was the same as i was running then found mine had a 25W/25W fitted!
Healamp which is a stanley unit has 35W/35W printed on it but manual states 50/35W or 45/40 for european model?????
Any info appreciated,what are other Z1A owners running?,thanks
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Headlamp bulb
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wilsonsjw11
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It should be 45/40w but anything near those figure should be fine.
50/40 is available here.
http://www.bitzforbikes.co.uk/Headlight ... 48-91.html
50/40 is available here.
http://www.bitzforbikes.co.uk/Headlight ... 48-91.html
Mine as far as i know is a European model which would then make 45/40W Correct,why mine has 35W/35W printed on the headlamp then is a bit of a mystery,and i thought the lights were quite good with 25/25!!
Would I be chancing any electrical issues with increasing the wattage,ie with regards to generator or inline resistor?
Cheers for the help Steve and John.
Would I be chancing any electrical issues with increasing the wattage,ie with regards to generator or inline resistor?
Cheers for the help Steve and John.
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wilsonsjw11
- Hardcore
- Posts: 1317
- Joined: 18th Jul 2008
- Location: West Sussex/Central London
For headlamp uprating or any electrical issues remember that Virgins Are Rare.
Volts Amps Resistance that is.
A simple calculation says that a 45 watt draw will need 4 amps. 4 x 12 = 48.
Easily within the wire rating of 8 amp but it's a good idea to put an inline resistance check in the circuit, that is a multimeter to you and me, to see what is being drawn in the circuit. (Use the 10A setting).
Resistance is the killer in old Zed wiring in particular switch contacts.
Volts Amps Resistance that is.
A simple calculation says that a 45 watt draw will need 4 amps. 4 x 12 = 48.
Easily within the wire rating of 8 amp but it's a good idea to put an inline resistance check in the circuit, that is a multimeter to you and me, to see what is being drawn in the circuit. (Use the 10A setting).
Resistance is the killer in old Zed wiring in particular switch contacts.
Asphalt Cowboy
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Phil Churchett award winner 2015
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