SOHC.co.uk Forums > CB500/550
Cb550f blowing main fuse
Oddjob:
Another odd thing. Chain guard is plastic on a k but chrome on an f.
Can I suggest filling the bottom 3 slots in the fuse box with spare fuses, they’ll come in handy if one blows. Say a 15 a 7 and a 5? Or maybe 2 orange and a blue as fitted. Always a good idea to carry spare fuses somewhere.
Towsejames:
--- Quote from: Oddjob on August 11, 2026, 02:36:03 AM ---Another odd thing. Chain guard is plastic on a k but chrome on an f.
Can I suggest filling the bottom 3 slots in the fuse box with spare fuses, they’ll come in handy if one blows. Say a 15 a 7 and a 5? Or maybe 2 orange and a blue as fitted. Always a good idea to carry spare fuses somewhere.
--- End quote ---
Ah yes. That is my plan, I will carry 2 spare 15 and a spare 7 for the lights.
Sent from my iPhone using Tapatalk
Towsejames:
So many minutes of cleaning and tightening connectors and things are looking much tidier. Nothing crazy found except a few questions marks.
First one being the horn. My horn is fed with a pale green wire and another wire earthed to the frame of the bike. There is a black wire that runs with the pale green which was left off. The horn works as it is. The black wire has 12v when the ignition is on. Would anyone have any pics of how their horn is wired for reference.
Also a green terminal connector is left floating behind my flasher relay - I’m not sure if this is spare or meant to be connected somewhere. (Everything seems to work fine).
Finally look at how my pilot lamp is held in! And has been for the past I’d say 20 years or so. Can anyone let me know how this is meant to be. And also does this whole unit need replacing if the headlight bulb blows? Since I can’t see a way of removing a bulb.
Finally at the headlight plug I’m only getting around 8v for dip and high beam is this correct or should this have 12v
Thanks in advance.
Sent from my iPhone using Tapatalk
Towsejames:
Sent from my iPhone using Tapatalk
K2-K6:
"Finally look at how my pilot lamp is held in! And has been for the past I’d say 20 years or so. Can anyone let me know how this is meant to be. And also does this whole unit need replacing if the headlight bulb blows? Since I can’t see a way of removing a bulb."
Correct in replacing the unit.
These are "sealed" beam headlight unit made as one construction. It's effectively a giant bulb with a front panel incorporating the lens. This, unlike more current units, with separate individual bulb mounted into a reflector and lens arrangement.
Voltage at lamp should be same as the battery float level (12v upwards) and possibly shows with that 8v that it could have resistance on the line between battery and terminal.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version