Fight the re­sis­tance

Practical Sportsbikes (UK) - - Fettling -

Can any­one at the mag shed any light on the elec­tri­cal is­sue on my Yamaha YZF750? I have a wire go­ing into the fuse­box which is the feed up to the head­light. It looks like it has over­heated and melted. It seems to have the cor­rect 20A fuse in the box and that hasn’t blown. Any ideas?

Si­mon Fin­lay, PS Face­book Group Fer­ret says: If there were a short-cir­cuit is­sue, the fuse would have cer­tainly blown. This looks to me like per­haps the head­light bulb holder is cor­roded or there’s re­sis­tance else­where in the wire – this will be down to age and cor­ro­sion. This would ex­plain the build up of heat in the ca­ble.

A viper’s nest of po­ten­tial grem­lins

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