Thinking of buying a bike w/o a functioning Rev Counter.

[New York Doll]

Hello all,

I have been looking for a decent bike for some time now, I just came across a NS125F *1988*. Everything appears fine with the bike bar the dead rev counter (for lack of a better term ).

I have talked with the seller regarding the problem and he has no idea of the extent of the problem, nor how much it would be to fix.

I would like to know, worst case scenario, how much would it be to replace the rev counter or indeed fix the problem?.

Cheers!

(Just to note, the bike kicks over and starts as normal. The only issue is the non-existant rev counter).
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"You know even if I live to be a 100 years old which is highly unlikely I must say, but if anyone mentions 1977 then a crooked smile will come to my lips, I know it will. It was the year that changed my life" - John Peel (1977)

[2Smoke]

Hi it will either be the following;

CDI output to the Tacho
The tacho itself
The wiring to the tacho

In the first instance a new cdi will be a few quid but doubtless you will find one on ebay quite cheap. Ditto for the tacho.

As for the wiring, you could do with a wiring diagram to see where the wires go but it can be sussed otherwise as usually there are three wires for a tachometer circuit, one to earth, one to switched live and the other to the cdi.
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Currently in the stable.. '89 TDR250, 86 NSR250 '79 350LC, '79 DT175MX, 82, Pasola, '98 R1, '95 Speed Triple.. all of them total sheds..

[Ric]

ask him if the lights on the tacho work,

when my tacho went dead the backlight went, there was a loose plug

also if u touch the tacho wire on the battery to a 12v the needle will jump (aka tacho drive isnt dead)

[New York Doll]

Thanks for replying guys, I really appreciate it.

[simon1221]

Rev counter without a light, what use is that? Im sure it should have one and he is pulling the wool over your eyes and covering up the problem that it dont work.
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DNA50 (sorry) ->> TZR125l >> GPZ500S

[mr jamez]

If there was no output from the CDI then the coil would have no juice and the bike would not even run so it can't be that. I would check the wiring, bound to be a bit of corrosion there somewhere considering the age of the bike. However if it is screwed, then just replace the whole clock unit, they are on ebay all the time and go for about £20.

[Black Knight]

i'd go for it mate. I expect it something real simple to sort. The light is out on my rev counter, still works, just try not to redline it at night

[stinkwheel]

Is he not implying it has a normal, cable operated rev counter?

This being the case, it needs a new cable as they break if you look at them sideways. Just like the one on my H100 did today.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[New York Doll]