Topic: Speedometer/Odometer Woes

[leekellerking]

You are getting to the fix! Its the same set up on numerous other models from the early '80s. The gears are bake-light or hard nylon.  I always follow this sequence when I have a malfunction on the speedo.  Old cable out of sheath if not broken and bottom end in drill.  Insert other end in speedo and turn slowly to check speedo itself.  The ratio is usually four turns of the wheel to one turn at the speedo. If the speedo is turning, then check the gears in the wheel and cable drive. Usually both gears will be stripped. I like to use graphite lubricant on the gears and cable.   

Both dogs stripped?  Yikes!

Bike Bandit has the wheel dog in stock, but not the speedo gear housing.  Therefore, I'm betting that either my old gear housing or the salvage one I have will do the trick.  I am ordering the wheel dog tonight.

Lee

[leekellerking]

And the winner is -- the dog!

I got the part yesterday and replaced it today and Bikey now has speedo and odometer. 

The part itself (I forgot to take a photo) is a light metal ring with two prongs (that fit into recesses in the wheel's axel tunnel) and two protrusions (that mate with the dog on the speedo gearbox).  The metal is fairly soft and bendable by hand. 

My guess is that last time I changed the front tire I didn't do a good job of mating the two dogs, causing the one in the wheel to wear.   The one in the gearbox was more substantial  Or it was just getting old.  LOL


Now, on to the next issue!   


Lee

You are getting to the fix! Its the same set up on numerous other models from the early '80s. The gears are bake-light or hard nylon.  I always follow this sequence when I have a malfunction on the speedo.  Old cable out of sheath if not broken and bottom end in drill.  Insert other end in speedo and turn slowly to check speedo itself.  The ratio is usually four turns of the wheel to one turn at the speedo. If the speedo is turning, then check the gears in the wheel and cable drive. Usually both gears will be stripped. I like to use graphite lubricant on the gears and cable.   

Both dogs stripped?  Yikes!

Bike Bandit has the wheel dog in stock, but not the speedo gear housing.  Therefore, I'm betting that either my old gear housing or the salvage one I have will do the trick.  I am ordering the wheel dog tonight.

Lee

[juntjoo]

I wanna say thank you for creating this ancient thread and providing all these details, if I may revive it. Idk the rules for this. But I'm thinking we don't need another for the same issue. Scott, advise if need be.

Anyway, nothing happened with my speedo/odometer that I can tell. Just one day, yesterday, after getting it back running after months fixing it for unrelated issues I noticed The only connection I can see to check is the top one which looks fine and you can't really do anything with it other than push it in as far as it goes then tighten the cap. I'll follow the book and all the details in this thread and report back but I'm guessing that gear down there is worn like you Mr "Lee" found since nothing got loose as far as I can tell. Great thread!