Calibrating Tach?

[unotre]

Is there a way to calibrate/rebuild the rallye tach without sending it off and having someone else do it? My tach is about 400RPM over.

[Chryco Psycho]

not really most of the fatory ones are inaccurate , mine was also ,, you can install better electronics yourself without sending it away

[unotre]

not really most of the fatory ones are inaccurate , mine was also ,, you can install better electronics yourself without sending it away

I did some more searching and found the RTE site.  http://rt-eng.com/rte/index.php/RTE_67-74_Tach_kit

I was about to order the circuit board but then I read the description on there and learned that the factory tach actually has a potentiometer built into it. Have you tried adjusting that pot and did it help at all?

[Chryco Psycho]

not enough , mine was not linear so at idle it was 300 high & at 3000 it was 2500 high