hey ive had my 929 for about 3 weeks now and the tach hasent worked since i got it
ive been bidding on some on ebay but never stepped up cause i wasnt sure that was the problem
well i tried my buddys cluster yesterday and it didnt work either so now i have to figure out whats wrong with my bike
if anyone has had this problem and fixed it and you know what is wrong let me know
thanks
speedy

 

Does everything else work? It's only the tach that wont work? Check your fuses out, it might be one of those if nothing is working. If it's just the tach that wont work then I'm not sure

 

i looked in my honda service manual and you need a special peak voltage adaptor from honda to test the problem. but according to the manual it can only be 1 of 2 things, either its the tach/speedo cluster or the ecm. neither one is gonna be cheap. but you can check if there is a short in the wiring from the ecu to the tach, cause that would cause it not to work. the yellow/green wire is the one that carries the tach signal.

if you've got a friend with a 929, id say swap gauges just to see if it fixes the problem. if not its a short or the ecm.

 

he already said he tried someone elses.

the sensor is down there by the crank so maybe check the wiring connections with that. that sensor could be bad. also, find the tac wire coming from the computer that goes to the guages and do a continuity test on it to see if there is a break in it somewhere.

all else fails, call a dealership and ask their opinion.

 

so if a working gauge cluster didn't fix it, its either the ecu or a short. check the yellow/green wire going from the tach to the ecu. if no short, try swappin ecu's to see if that fixes it.