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Katana Channel
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Generally the classic Katana wiring harnesses for the Gs750sz, Gs1000sz, Gs1100sz, Gs750sd and the Gs1100sd are the same. I say this for the Canadian and U.S model years 1982 and 1983. If you are elsewhere in the world you can add the X to Gs (Gsx). The only differences I have found between 1982 and 1983 for the Suzuki Katana are as follows:

There was a wiring change changed the configuration of the white plug that connects to the harness, along with the addition of a kick stand safety wire connection. If you go out and buy a right hand control off eBay from someone who says its fits 1982 and 1983 Katana, you may or not be able to use it. The 1982 has one yellow connector coming out of the back of the white Molex plug that connects to a left hand control wire and the 1983 Katana connector has two yellow wires in addition to the Molex plug re-wire. (see picture)

Click on the picture for a better view of the rewired plug.
kill switch plug pic
A growing problem with Katana enthusiasts is the growing scarcity of parts. There are plenty of Katana instruments around though with broken needles and others with the needles laying at the bottom of the glass as the sun has baked the glue and they simply fall off. I have used a couple different sets of digital instruments for some of the bikes I have built. One set is SPA and the other is TRAILTECH. Which are 500.00 and 150.00 respectively.
To the left is the SPA set and the VAPOR by Trailtech is on the ZZR 1135. (see right)
Clock Plug

Clock Plug

Wiring Diag

Wiring Diag

LH Control

LH Control

Vapor Gauge

Vapor Gauge

Wire Gauge

Wire Gauge

zzr vapor pic
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