Available for purchase here!
 
We are now offering these sweet little turned tochometer drive blanking plugs.  These are used when you remove the stock tachometer (rev/rpm counter) and need to plug the hole so oil doesn't leak out of the head.  The plug comes with the correctly sized o-ring (high temp resistance material), and has a convenient hole in the top of it to allow easy removal with a screw driver or allen wrench.
 
The plug can also be used to blank off unused speedo drives - in case you are running a digital speedo with a hall sensor pick up instead.  
 
These plugs fit the Yamaha SR250, SR400, SR500 and their offroad/adventure counterparts the XT250, TT250, XT500 and TT500.