2018 Regal Raptor keeps blowing a fuse

[Rahzon]

I have owned my Regal Raptor DD125e-8 (2018 model) since new.

It has not long been through it's first MOT and just after this it has developed an electrical issue.

The issue is that it will blow a fuse and the headlight bulb together. It does not seem to have a consistent set of circumstances to reproduce, it has happened at high speeds and low speeds. Nor does it seem to be tied to a specific length of time. When the fuse goes it also kills the engine and I have to change the fuse to be able to get the bike to start again as it kills everything.

I thought it may have been dodgy headlamp wiring, however, I took the bike out today with no headlamp bulb and it did it again.

It does not seem to do this when the bike is sat running, and I have tried puling the wiring around as it is running and have not been able to force the issue to happen.

Any thoughts?
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[jaffa90]

Any work done at the m.o.t ?
Anybody tampered with the ignition switch?
The tester will fully turn the bars in both directions as per test.
Have you tried this when stopped when you wiggled the wiring?
What is the battery voltage reading at 4,000 rpm with the negative tester probe touching the bare metal frame?

[Nobby the Bastard]

[Rahzon]

[Copycat73]

regulator rectifier..
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[Nobby the Bastard]

[Bhud]

Going by the AJS website, where they sell headlight bulbs, this bike is supposed to use a 35/35W bulb. It's this:

https://www.ajs-shop.co.uk/acatalog/HEADLIGHT-BULB-12V-35-35W-BLB003.html

Are you using the standard bulb? If not, put in a standard bulb. Don't try to use anything clever, in case you put in something that draws more current and runs hotter than the circuit is designed to handle.

If you're using the standard bulb and this problem keeps happening, investigate a bad earth. A testing light is, in my opinion, the easiest way to search for a bad earth.

[WD Forte]

bent subframe
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[Easy-X]

[Nobby the Bastard]

How about every fuse on the bike?

The fact its just the headlight and associated fuse points at a bad earth.
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[Bhud]

It would be nice to see a wiring diagram.

OP's post suggests that there aren't 2 separate fuses for the headlight and the engine, so everything dies when the headlight blows. He then replaces just one fuse, and the bike works again for a while. In other words, bike has just killed one fuse and a bulb, and nothing will run. If he then replaces the bulb and that fuse, everything works normally (i.e. his headlight works, and he can start the bike). The headlight fuse is the main fuse? Never seen any setup like that before. Has anyone else?

I don't know, but I would expect a separate fuse to be in the path of the headlight circuit.

[Nobby the Bastard]

Having read his post again it happened without a headlight bulb in it.

The main earth to the engine could be at fault. Fuses don't usually go due to over voltage. The battery gets fried instead.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[WD Forte]

Just had a look at the diagram for the Lifeng dd125E-8 'Rupture'
(cos thas what it is really)
They appear to use Honda colour conventions and the efi bike has two fuses
One supplies the efi fuel pump etc and the other does all the rest

Twin carbed version has one 15A fuse for the lot
2018 could be the last of the carbed or first of the efi bikes
op doesn't say
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[Easy-X]

LMAO were they going for "Raptor" and the translator was on holiday?!
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[Copycat73]