Heated grips on small scooter (and oddball electrics!)

[sickpup]

Yep, same sort of thing. When fitting just make sure they are oriented correctly.

[stinkwheel]

[Nobby the Bastard]

Ive been using Oxford grips for at least a decade and the only issu I've really found is that the rubber starts to wear down to the heating elements after 30 to 40 k milez
____________________
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

[Islander]

I've had Oxford heated grips fitted to my R850R for the past 4 years they've been excellent so far.

[A100man]

[Islander]

[WD Forte]

I reckon we may have case of overthinking here
Just had a shufty at the Innova diagram and it all looks like
the stuff I've seen on the other honda scoots I get to play
with at times, albeit made more complex because of the EFI
what happened to carbs and CDIs eh?

Positive earth? self exciting?
nahh very much doubt it

I have some led wedge bulbs that are polarity conscious and will only
work one way, so you may have to flip them if they wont light
some leds will work in either direction

You should be able to use leds without doing any wiring mods
and I'd suggest actually testing the things off bike before you fit it
as some may be faulty
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bikers smell of wee

[Robby]

I tried a similar amount of overthinking when fitting heated grips to a scooter a few years ago. Well, not that much, but trying to run a normal DC relay into the lighting circuit. Lots of buzzing happened as the relay switched at 50hz.

So I just ran the grips direct from the battery with a relay off the ignition switched live. These were cheap ebay grips for scooters, certainly a lower current draw than the ones on my big bikes. Plenty hot enough.

If it's cold enough to need grips on full power all the time, it's probably a day to take the car.

[stinkwheel]

[stinkwheel]

[WD Forte]

maybe maybe not
never had me mitts on one so what do I know?
but the anf diagram you showed is clearly a negative earth system
and most efi systems will go ape shit on low voltages.
Perhaps they designed a cunning wheeze in there to cope with a flat battery?
____________________
bikers smell of wee

[stinkwheel]

[WD Forte]

ALL the lights on that diagram share a common ground
linked to Frame/Battery negative
That means they're all negative earth not positive earth.

We can only see terminations of the cables and not actual
switch mapping/functions mostly but I agree the lights are fed by the single yellow cable from the regulator.

I'd say the main relay function is to cut power on
the yellow cable (lights) while the starter is cranking

This is a commonly used device would not allow self exciting exactly
but give a kind of similar result by maximising as much
power that's available from the a possibly flattish battery plus the small charge given by a kick to power the ecu, fuel pump, coil, and injector.

If the battery was dead flat how would the fuel pump pressurise the injector, boot the ecu, charge the primary windings of the coil and ready the injector?
I really cant see how a breif kick ( 1or 2 revs at most)would provide enough power for this
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bikers smell of wee

[stinkwheel]

I assure you the lights are positive earth and accessories are negative earth. All going back to the frame. Must get away with it because it's a single phase. I'll video it tomorrow.

I've got two stop and tail LED bulbs, one positive earth and one negative. With the positive one, the tail light works but not the stop light. With the negative earth one the stop light works but not the tail light. You get a negative volt reading and negative current flow on the multimeter when you measure the lighting.

Just when you thought Japanese small bike wiring couldn't get any weirder.

The LED headlamp bulb works too so it can't be AC. It shimmers slightly at idle but settles down once the revs increase
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Islander]

[stinkwheel]

Here we go. Short video showing the two different polarities on the same bulb holder.

https://youtu.be/Rb336rspMh8
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[WD Forte]

[stinkwheel]

[ThunderGuts]