Tachometer Cable Screw Replacement
The radiator must be removed to perform any of the electric fan upgrades discussed in this write-up. So this would be an ideal time to replace the tachometer cable screw while access is not a problem. Do it now and you may very well thank yourself later.
In the event of a tachometer cable failure, the tachometer cable screw must be removed to replace the cable. Accessing this screw is difficult with the radiator in place. To make matters worse, the tachometer cable screw is usually tightly torqued from the factory and its head is easily stripped. Often when this happens the radiator must be removed to obtain better access to the screw.
The original tachometer cable screw has a Philips head.
Here the tachometer cable screw has been replaced with an Allen head screw.
In the event of a tachometer cable failure, the screw can now be easily removed
with an Allen bit socket.
Note the screw can be installed from either side of the housing. At least for the GL bikes, it must be installed in the direction shown or subsequent access will be impossible without removing the radiator.
The screw size is M5 X 20, 0.8 thread pitch.
Electric Fan Conversion Justification 500
only
Tachometer Cable Screw Replacement 500 and 650
Electric Fan Selection and Mounting 500 only
Camshaft Clearance Considerations 500 only
Fan Power Relay 500 and 650
500 Radiator Temperature Switch 500 only
650 Radiator Temperature Switch 650 only
Fan Always-On Modification 500 and 650