Hello all, I have just got my fork sent for repairs, and now the electrics have messed up, was out on a ride last night before fixing it, and my headlight bulb blew, pulled into a garage, bought a new one and fitted it, I carried on and 10 mins later my friend I was with pulled me over, he said my tail light wasn't working unless I braked (Led light) and the indicators stopped working, don't light up or make a sound
so my headlight bulbs keep blowing, side light doesn't work and tail light as well as indicators, does anyone know what the problem may be?? I've checked the wires are connected... The bike still starts and runs fine:

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04 XTX, V-Force Exhaust Carbon Wrapped, DNA Stage 2 filter, Kev Fuel Mod, R&G Tail Tidy, Blue Spokeguardz

Can you get hold of a multimeter? If so put it across the battery terminals with the engine running and check the charge voltage should be 13.5-14.2v. Make sure you Rev the engine while doing the check as it might be fine while idling but when you Rev you might go higher. Really sounds like the regulator isn't regulating and your blowing bulbs from over voltage.
Matt.

+1

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Mods that I have done to my XTX's

My 04 XTX
Stage 1 & 2 DNA filters / Kev fuel mod / snorkel mod / Drilled air box mod / Engine breather mod / Fork Spacer mod / 15w fork oil /
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My 07 XTX
Raptor 700 cylinder 102mm / Modified Crank Case to take a 105mm Raptor Cylinder / 11:1 102mm JE Raptor piston / Stage 1 Raptor Hot Cam / Ported head / Colder Spark Plug / +2mm Throttle body / DNA stage 1 & 2 filters / Modified Air Box / Snorkel removed / Worry Brothers stage 2 filter cover / 6mm & 8mm Bolts Replaced with Titanium Bolts / Recovered seat in Black / O2 Eliminator /

My 09 XTX
59HP at the rear wheel / Stage 2 Raptor Hot Cam / DNA stage 3 Air Box / Carbon Can Exhausts / Modified Exhaust Link Pipes / PCIII With Custom Fuel Map / Wideband Commander O2 Data logger / LCD100 Dyno Jet display & fuel adjuster / 2500 OHM HT lead instead of a 10K OHM XT lead / Extra Coolant Cooler / Protaper Fat Bars / Tail Tidy With LED Tail Light / OKE Protection Knobs / LED indicators / AIS blocked / Modified rear sprocket rubbers / Rear Foot Pegs removed / 09 ECU With 02 Sensor Changed To A 06 ECU / Complete wiring harnes Changed from 09 to 04 / Home made LED resistor flasher / Hole drilled in the fuel tank filler neck to allow quicker filling / Modified Bar End Weights / Progressive front fork springs, 15W fork oil, forks lowered 25mm, used XTR rear links lowering the rear 20mm, rear spring one click stiffer / Changed front & rear guards from blue to black / 47T rear sprocket / Speedo Healer V4.0 / Kev throttle cam mod / Throttle grip mod / The new 2010 O2 sensor mod is out, works a treat, The new 2012 O2 Controller is out, PM me for details

Now ride a 2018 MT09SP ABS + TCS

My KTM 990 SMR Mod book. http://www.ktmsmt.com/viewtopic.php?f=13&t=4946

Checked the voltage and it's around 13.5V, still no clue...

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04 XTX, V-Force Exhaust Carbon Wrapped, DNA Stage 2 filter, Kev Fuel Mod, R&G Tail Tidy, Blue Spokeguardz

Also, my indicators won't work at all, checked the wires all seem fine, and replaced relay and still nothing, but when I set my alarm they light up but one side brighter than the other, unless it's just me

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04 XTX, V-Force Exhaust Carbon Wrapped, DNA Stage 2 filter, Kev Fuel Mod, R&G Tail Tidy, Blue Spokeguardz

If your charging voltage is OK, which it sounds like it is, then have a look at the fuses.

Have you checked the 10A fuse in the separate white holder to the rear of the main fuse box? This fuse supplies the indicators and tail/sidelights, which may explain why they both aren�t working yet everything else is fine (assuming your headlight stayed working after you replaced the bulb).

It is quite possible that the headlamp filament just blew (as they do) and momentarily cause a voltage spike, which in turn caused the tail/sidelight/indicator circuit�s fuse to blow (they headlight front sidelight share the same earth). The headlight�s circuit may have been able to take the spike as it�s rated at 20A.

I�d guess the reason the alarm still powers up the indicators is that it (or its circuit) provides the supply to the indicator relay, not the same fused supply that the handlebar switch uses.

Check the 10A fuse, replace if necessary. If it is the problem, watch out it doesn�t blow again as this will be a sign the something is still amiss. However, I reckon (assuming the headlight failing was the start of your woes) that it blowing is/was the route cause and you should be OK.

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