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Speedo or cluster?!?

1.4K views 12 replies 8 participants last post by  cyberphox  
#1 ·
My speedometer recently quit working. It just reads zero no matter what speed I am going. Rpm gauge works fine and all other lights on cluster are ok. Just won't count mileage or tell me how fast I'm going. What do ya think?
 
#4 ·
I plan on pulling it apart Friday night after work to change the plugs and I will take a look at the sensor and see if it's that or the rotor on the sprocket. Hmmmm if it was the rotor or sensor would the rpm gauge not work? Cuz mine does just no the speedometer.
 
#5 ·
Check to see if the speedo sensor on the front sprocket is correctly screwed in or if it has loosened. Had that exact problem after a garage changed my chain set. Thankfully it was only that, a pal of mine got home from (another) garage when they put other tires on to find out, when checking some strange rattling sound, that he'd ridden home with front brakes' screwes not screwed in, only put into the holes. :facepalm Fucking careless mechanics.
 
#9 ·
It's more than likely either the speedo sensor or the speedo rotor. The first is in the front sprocket cover, the second on the sprocket shaft, the 4-pronged thing bolted into the end of it.

Have you changed sprockets recently? It's quite common that that bolt works itself loose if it hasn't been loctited and then the rotor just spins on the shaft.
 
#11 ·
As I wrote in my post last week, many times you only need to screw the sensor's bolt back in, nothing wrong with sensor, only the screw has come loose.

Don't go taking the bike apart needlessly, first now that you put the sensor off and back on go for a ride and see if still doesn't work. If it doesn't, only then go taking it apart. :thumbup