SOHC.co.uk Forums > Project Board
Rounded head
Carb17:
Yep thats the one
AshimotoK0:
--- Quote from: RGP750 on April 05, 2016, 09:11:53 PM ---Drill a small hole in the center of the cross about 8mm deep and
get a good quality torx bit slightly larger than the hole tap it in and undo with a
small socket.
--- End quote ---
+1 on Rich's method :) ... I do that all the time. Or Mig weld a blob of weld onto the head and then file a couple of flats onto the blob and use Mole grips to remove it while everything is still hot. Remove the plating first though
Bryanj:
However you do it do not hit too hard or you will break the speedo drive, even more so if you are undoing thr tacho one
masonmart:
I had the same problem with every phillips head screw on the bike. In the end I removed every screw with an impact driver, they're invaluable. Also get a set of drivers with a metal hexagon at the end opposite the blade. These you can impact the screw with to break the galling and get a lot more torque on with a spanner or socket.
MrDavo:
--- Quote from: masonmart on April 06, 2016, 09:43:04 AM ---I had the same problem with every phillips head screw on the bike.
--- End quote ---
Therein lies the problem, they're not Phillips screws, they're JIS! Using a Phillips driver will cause it to 'cam out' and slip if any serious torque is applied.
This page explains, with a diagram.
http://www.vesseltools.com/hand-tools/screwdrivers/jis-japanese-industrial-standard/view-all-products.html
After taking all the allen screws out of my bike and going back to the OEM silver chocolate ones, buying JIS screwdrivers was essential, I found a reasonably priced pair on eBay.
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