Sunday 1 October 2017

Switchgear and Thermo Fan Manual Switch

Grey import switch gear for these bikes don't exist as new stock anymore and second hand units are usually in poor condition. I used a generic 5/8" switch gear from Ebay as an alternative which is cheap and works perfectly. The manufacturer from china has basically just reverse engineered a honda switch gear so all the internals are wired the same, just different plugs and colour wiring. All that was needed to do was transfer the clutch switch wiring, oem plugs and match up the wires to their functions.

New Ebay switch gear - Straight out of the box

Loom for the switch gear organised and ready for the plugs to be soldered
Switch gear all soldered and taped, ready to go on the bike
Switch gear installed
Another electrical change was to the thermo temperature switch. A common fault on these bikes is the temperature switch that sits on the bottom left of the radiator fails and ultimately stops the thermo fan from ever turning on- no longer cooling the bike while stopped or at low speed. Installing a manual switch is definitely one of the easiest modifications that can be done on these bikes.

A new bracket for the KOSO dash was made up which has space for a SPST 2 position switch.

Manual switch insalled
The wire connected to the temperature switch on the radiator was unplugged and runs over the top of the bottom triple, connecting to the 'off' side of the switch. From there a new wire runs from the 'on' side of the switch to one of the fairing stay bolts, earthing it on the frame of the bike.

Switch complete




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