Speedometer inner workings

I am working through the list of things i need to fix on my bike for the year before my trip to the ama weekend in alabama.

The speedometer quit last summer and the cable appears to be ok, is it possible to repair the speedometer on an 82 XJ750 seca? Or would i be better off trying to get one from another bike?

I have the square set up with the LCD indicators.

 

Before you start chasing down parts, have you checked the drive end?.

I've had a speedo fail once when the little drive tabs in the hub sheared off.

Raise the front wheel off the ground and give it a spin, then see if the cable turns as the wheel does.

 

Maybe it's the heat out here but a couple of my speedos quit when
the grease inside dried up. If you run the cable with an electric drill going in reverse to check the speedo but it still doesn't work you will need to take it apart and clean out all the old grease and lube it with some oil.

 

Does the odometer work. If so the problem would definitely be in the speedometer. If the odometer doesn't go either I'd bet your problem is lower on the bike.

 

Agree with Boso, the very thing happened on my trike. Try using an electric drill, side of the chuck running on the top of the wheel, this will turn the wheel fast enopugh for a decent reading, rather than trying to spin it by hand. If you try too hard with your hand, you run the risk of pulling the bike forward off its stand.

Lea

 

Thanks i will try that this weekend and see what i find out.