So every single set of heated grips I had from different manufacturers or different evolutions have always had and still have the same problem for me. Throttle grip heats up much more then clutch one. Is there a reason for it? Frankly it is always the same. Maximum heat makes the throttle grip to hot after a bit of time while clutch grip on the same setting is just getting warm. Why is that? How to overcome it?
The clutch side is straight onto the bar which acts as a heat sink drawing heat away from the grip. The throttle side is onto the plastic throttle sleeve which acts as an insulator allowing more heat to be available to warm your hand. It helps to put one or even two layers of heatshrink over the clutch side bar before fitting the heated grip. I once had a set of heated pads, to go under OEM grips, on which the clutch side had a bigger heating element so that it could get as warm as the throttle side.
That is along the line I was thinking. Thing is both My current Daytona and the set I used before that Oxford have a plastic insulator on clutch side. Doubt I would be able to put any heat-shrink on bar and still be able to put the gip on but will have a look
I have a cheap set from Motorcycle Helmets| Motorcycle Spares| Motorcycle Covers : 2 Wheel Junkie They were on offer a year or so ago so I got a set. They both heat the same and still work fine! They have a simple hi/low/off rotary switch. Here's a link, cheap but I'd buy another set! Motorcycle Heated Grips - Winter Warmers - Our Best Weekly Deals - Best Deals Section - Motorcycle Helmets| Motorcycle Spares| Motorcycle Covers : 2 Wheel Junkie
It is the same set I got now. Works but with above mentioned problem. Funny enough had same set on 900SSie and it was not as noticeable. Maybe because of clip-on?
The clip-on can have a lot to do with it. The difference was very marked on the ST4s probably because the handlebars are solid alloy, not hollow.
Easy.. just saw the metal end of the bar off and glue some plastic ones on instead, if you have problem sourcing some plastic handles just find someone's Sulu bin as theses are ideal substitutions for you application Lucas. PS make sure your axe is sharp before attempting to hack the handles off.
Test whether the heat loss is due to heating the air inside the clip on by filling it with insulation material. If there is an improvement then consider using expanding foam.
Expanding foam...:Yuck: The issue here is simply that the throttle tube, and the layer of air between it and the bar, act as an insulator, so less heat from the grip on that side is conducted away than on the other side. That's all. Try connecting a 0.5 Ohm, 5 Watt resistor in series with the right grip. The resistor will get quite warm, so be sure to mount it somewhere safe and secure. Assuming your grips are about 4 Ohms each, they'll draw about 49W each at 14.0V. With the resistor in place, the right one will dissipate 39W instead, ie. about 10W less. If that's too much or too little difference, adjust the resistor value accordingly. [edit]: ps. that'll only work if your grips are wired in parallel. If they're connected in series, then adding a resistor won't help, it'll just make both of them run cooler.
Resistor :Stop: The issue here is heat loss in the left hand clip on. Ideally we would add insulation between the grip and the clip on (as supplied by the throttle tube plastic) but there is no real room to do this. Suppose we could always mount your resistor in the left hand clip on and harness the heat it generates. Hang on, if we do that that then the left hand one will be warmer than the right!!!!!!!!!!!!!!! We could always add another restistor to the left hand grip to lower that, but where to mount that resistor. Etc,etc. [edit]: ps. that'll only work if your grips are wired in parallel. If they're connected in series, then adding a resistor won't help, it'll just make both of them run cooler.
I am skipping the resistor route. Will try and isolate stuff if not will try and source out another throttle side grip, put not on old twist tube and mount like that. Adding expanding foam will work a bit I guess by isolating heat loss.
