Can anyone tell me if there any significant differences between a lightning and firebolt wiring harness (Y0136.1AA and Y0136.1AC). The wiring on my Lightning's getting a bit shabby and I've seen one for a Firebolt in good condition but don't want to buy it if it needs too many modifications. The description for the 'R' is XB12R main wire harness w/ fuse labels; the description for the 'S' is XB12S main wire harness w/ fuse and relay labels. which leads me to think they're different. Can anyone tell me how different? Thanks

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Yes, they all do that sir

yes
XBR has fuse box and relays either side of the headstock

XBS are under the seat

so the loom layout is a bit different , possible but just a bit more faffing about

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Feros Ferio

Thanks for the quick reply Nuttah! Now I know where the fusebox is on a Fireboly, reckon it's a bit more faffing than I banked on. If anyone wants a brand new loom for a late model Firebolt, there's one on fleabag:
320233272683

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Yes, they all do that sir