Valve clearance adjustment

AlanW

XS650 Enthusiast
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Sorry - I’m a newbie. Just read the excellent thread from littlebill31 on adjustment of valve clearance. Can someone please advise the size of the square head on the adjuster and suggest a source for a spanner to fit, or options to swap out with a hex head as per his upgrade.Thanks
 
It's 4mm. I use a 4mm open end from a Craftsman ignition wrench set .....

MetricIgnitionWrenches.jpg
 
Yes, but that won't work on a 650 because the adjuster screw locknuts are 12mm.

Another option is one of these little T handles available off eBay from China for a few dollars .....

ValveTool2.jpg


ValveTool5.jpg


ValveTool4.jpg


I bought one because I thought it would be the "cat's pajamas" but honestly, the 4mm open end is easier to use.
 
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