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Rounded head

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masonmart:

--- Quote from: MrDavo on April 06, 2016, 11:03:45 AM ---
--- 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.

--- End quote ---

Yes understood but I call them all Phillips screws. I had the right bits for the impact drivers and screw drivers so rounding wasn't a problem only getting enough torque on them to move them. My bike and engine were seriously corroded though.

mike the bike:
If you grind a small amount from the tip on a PH2 it will fit a JIS without camming out.

Carb17:
Thanks for everyone's help , I'm sure it will not be long until my next post !

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