Speedo sensors - how do they fail?

I wish you luck with it mate! Im sure you'll manage to save some monies...

Originally Posted by ThEGr33k

I wish you luck with it mate! Im sure you'll manage to save some monies...

Yeah deffo...just need to make sure I get a low mileage one so it's got some life left! This one had/has almost 44k on it now...

Originally Posted by muffles

Yeah deffo...just need to make sure I get a low mileage one so it's got some life left! This one had/has almost 44k on it now...

Not too bad then I guess

Why do they make it complicated and run them off of gearboxes/front sprocket!? Its crap because you cant change the ration with the chain without messing about with speedo healers and all that... Poor design imo ha ha.

Originally Posted by ThEGr33k

Not too bad then I guess

Why do they make it complicated and run them off of gearboxes/front sprocket!? Its crap because you cant change the ration with the chain without messing about with speedo healers and all that... Poor design imo ha ha.

I've noticed Honda have a tendency to design things in weird and wonderful ways

And for me they have been the most unreliable manufacturer of all, lol - the irony!

Originally Posted by muffles

I've noticed Honda have a tendency to design things in weird and wonderful ways

And for me they have been the most unreliable manufacturer of all, lol - the irony!

Same for me... but then I had a ancient VT250 (older than me) so I suppose its to be expected. ha ha.

I do think they have an un just title of "Honda makes perfect bikes". Its just not true.

OK, I did my test now, and the speedo sensor seemed to be working fine - the voltage varied from 0 to 4.9 (close enough to 5V I assume! It was only a 0.1V accuracy at that level). I could get it to change from 0 to 4.9 at will by moving the wheel so seemed pretty normal.

Btw - TSM you were right - I had to do it with power, and stick the tips of the multimeter wires in the back of the plug. Bit awkward but worked. I might try taking it out and doing the test you recommended (feeding own power and waving a screwdriver or whatever in front of it) if you think it warrants it? What do you/others think?

Other than that I can have a closer look at the wiring - I didn't notice any obvious issues. I'm going to enquire about the price for a speedo sensor from the guy I'm probably going to buy the TBs from on Ebay. A reasonable enough price will probably see me change it anyway.