Making my own heated grips controller

Has anyone tested the voltage at the controller (boths grips off and on)? Sounds like its got some kind of voltage monitoring circuit which cuts off if the voltage is low.

If you are pulling power from somewhere up front, there could already be a significant voltage drop from all the existing wiring and therefore the extra load of the grips might drop the voltage low enought for it to cut out.

If so, a direct (fused ) feed from battery to grips should fix things.

Just a thought!

Originally Posted by markc123

Has anyone tested the voltage at the controller (boths grips off and on)? Sounds like its got some kind of voltage monitoring circuit which cuts off if the voltage is low.

If you are pulling power from somewhere up front, there could already be a significant voltage drop from all the existing wiring and therefore the extra load of the grips might drop the voltage low enought for it to cut out.

If so, a direct (fused ) feed from battery to grips should fix things.

Just a thought!

This is how the instructions come ..... does it make a difference ??

Would it make a difference sticking the negative, rather than the positive, on a 'ignition related' circuit ??

Fitting mine soon - so helpful to know .... was going down the positive ignition circuit route

[fastdruid]

Originally Posted by LK-SV

This is how the instructions come ..... does it make a difference ??

Would it make a difference sticking the negative, rather than the positive, on a 'ignition related' circuit ??

Fitting mine soon - so helpful to know .... was going down the positive ignition circuit route

There are no switched 'negative' 'related' circuits so no.

I fitted mine directly to the battery but then I've a couple of times left it on and it's drained the battery, I keep meaning to re-wire it up off a relay to the Fuel Pump relay[1] but never got around to it.

Druid

[1] On my VFR _only_ on when the engine is running.

Yeah my idea wouls also need a relay so you dont run the batt flat. Its just an idea, needs someone with iffy grips and a multimeter to confirm . I have not the funds to go buying things like this yet, must sell one of these evil cars!

[Dave20046]

I nicked a modern type controller (photo'd a page or so previous) off a mates bike, when I press 'on' it does nothing if I press and hold 'on', the blue light on 50% comes on for about a second or two and then goes away

That mean anything to anyone?

[Dave20046]

Originally Posted by Dave20046

I nicked a modern type controller (photo'd a page or so previous) off a mates bike, when I press 'on' it does nothing if I press and hold 'on', the blue light on 50% comes on for about a second or two and then goes away

That mean anything to anyone?

Found the problem.....wish I hadn't. It's works fine when sat at above 1.5k revs, I take it this suggests my battery or reg rec is knackered ?

I thiink the controller unit's have a cut off thing when they detect sub 12v, start up and tick over the hot grips won't stay on for but hold it at 1.5k+ revs it'll happily sit at 100%.

Would I be wrong in optimisticly thinking the problem might go away after a nice long run? (the bikes been sat for a week).

[yorkie_chris]

Might do.

Maybe controller and charging system is fine and you just have a bad connection?

[Dave20046]

Originally Posted by yorkie_chris

Might do.

Maybe controller and charging system is fine and you just have a bad connection?

It didn't seem random enough to be a bad connection it was just like there was a switch at 1.5k revs

[yorkie_chris]

Resistant connection somewhere could act fairly repeatably, check charging system to rule it out.

[Spiderman]

Originally Posted by Alpinestarhero

I believe that is not quite the latest controller (the very latest ones are digital with an on/off switch) but that is the model I have had problems with. It could be my bike; a pointy with its beefier battery might mean you dont have probs

its the same controller that i have on my pointy and it keeps switching itself off. This bike has no wiring or battery issues so i just know its the crap quality item from Oxford.

So no one has made their own controller yet i guess from the last few posts on here??