I've just fitted a pair of these levers, ebay item http://www.ebay.co.uk/itm/281909333363 I'm a bit concerned that the brake lever is causing the front brake to drag, very noticeable when trying to move the bike in the garage. Has this been a problem for anyone else and, if so, how did you cure it? Changing the adjuster doesn't make any difference.
I very much doubt that a properly adjusted lever would on its own create a pressure in the master cylinder causing the brakes to drag.
I'm far from being a home mechanic, but is the switch located into the right position on the lever. If you operate the lever can you hear the switch clicking in and out. If not I'd have a guess that the locator isn't in the right place. There's probably proper words and names for these parts but hopefully you'll get what I mean...
Just had this reply from the seller. New message from: misano-moto-import-uk (7,266) Hi Neil. I'm pretty certain I know what the issue is. When fitting the brake lever the plunger that fits into the lever head itself should go into a brass collar(brass collar is facing road, looking down). The plunger should be carefully inserted into the holed drilled into the brass collar, although if installed incorrectly the plunger will not be fitted into the hole. Sometimes you will have to swivel the brass collar around until you see the hole, then install the plunger into this part and all should be ok braking wise. Please let me know if any difficulties or pictures needed to explain better. Thanks Dan As I didn't notice a hole, that is where the problem lies! Back on to it in the morning.
Well that's the limit of my technological ability. It was just a possible option. I'll go have a lie down now.... Good luck, and hopefully someone with more technical know how than me (so, that'll be everyone) can help you get sorted.