How to keep your electrics in tip-to or­der

You don’t need to be an ex­pert to give poor electrics a sim­ple ser­vice

Practical Sportsbikes (UK) - - Contents - WORDS ALAN SEE­LEY

Regualr main­te­nance is the best medicine for de­pend­able ’leccy

EVEN THE MOST pris­tine older bikes can have elec­tri­cal is­sues lurk­ing. So it was with edi­tor Jim’s Yamaha DT125R. Ev­ery time he ap­plied the brakes on a night ride home, the head­light would fade to the point of use­less­ness. If he had the temer­ity to use the in­di­ca­tors at the same time, he was plunged into dark­ness. Like many road/trail hy­brids, the DT’S electrics are at best mar­ginal but they should de­liver a lit­tle more than the gaffer ex­pe­ri­enced. With tiny gen­er­a­tor coils and a ba­sic four diode rec­ti­fier feed­ing a lit­tle bat­tery, ev­ery­thing needs to be in good shape.

Any trail bike used for its in­tended pur­pose is go­ing to get dirt in all kinds of awk­ward places. Wires that have been flow­ing cur­rent for years are prone to de­grade too, espe­cially when the

pro­duc­tion ac­coun­tants have pared down the wiring spec­i­fi­ca­tion to the very light­est.

With spring not yet sprung and Jim de­ter­mined to use the DT daily, we thought we’d best do some test­ing and in­spec­tion to re­store bright light to the lit­tle Yamaha.

Tools for the job

Mul­time­ter. Crimp­ing pli­ers. Wire strip­pers. Con­nec­tor ter­mi­nal tool. Brake or con­tact cleaner. Wire brush. Blue roll. Screw­drivers. Span­ners and/or sock­ets.


The lights are on but there’s no­body at home

Death star top right is con­nec­tor tang prong

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