Honda GB400 speedo issues

[JKM]

Hello everyone,

Just having a couple of issues with my GB's speedo. One day it started flickering +/- 10kmph the speed you were going, however this indicated lower and lower (flickered at a speed less than what I was traveling) until it eventually did nothing at all, and now sits on zero.

I disconnected the cable at the speedometer, and noticed that it wasn't spinning while riding along decided it was a broken cable and replaced it with a spare, when I spin the cable manually from where it connects to the wheel, the dial on the speedo moves slightly. This, however, did not fix the problem and I have since noticed that the part on the front wheel where the cable connects does not spin when the wheel moves (if you get what I mean), this part is the speedo gearbox right?

I have now decided this is the issue... Will I need to replace this part? Any insight on the topic would be great.

Thanks heaps,
Jamie

[mouldy]

Your speedo drive might be nackered but wavering needles is normally dry or about to break cables . Which end of the cable broke , is there any left in the speedo drive ? Pull your front axle out and have alook at the drive itself , it is possible that it may have stripped the worm drive but you should be able to tell by turning the inside of the drive with your finger .

[phantom]

This happened on my old GB400. The little drive thingamebob down at the front wheel hub had stripped. Got a replacement from Econohonda, fitted it myself ( easy as - must be if I can do it ) no further problems