Tiny Tach

[Deerslayer89]

So i have a tiny tach and just wonderin if the readings i get should be cut in half, I mean it says around 3200 - 3400 at idleing and i know for sure its not goin that fast. Manuel says around 1400 i think. What do yall think?

 

[Budget_Blaster]

I have one too is it the one from ebay? Yea sometimes its on and sometimes its reading double.i got it for the hourmeter and the tach was there so i hooked it up.i tried it in a few different engines and the only one it worked accurately on was my 5.0 that runs an hei ignition.the mower,110 chinese quad,kdx all were reading higher dont know why.

 

[Deerslayer89]

Bought it from Cabela's a few years ago. If you hook it up to a briggs, its accurate, but i've put it on 2 different 2 Strokes and it seems to read double.

 

[DirtDiggler]

You need to find one that works on a 2 stroke engine , there are different configurations for single cylinder engines as well . Try to find a set of instructions and see what it says .
Back in my street racing days the fad was to have a huge monster tach and shift light so bright you absolutely knew when you missed a shift and those tachs had multiple set ups . I had a 1994 integra and since it was a 4 banger I had to cut 2 wires on the harness of the tach and connect it to the ignition coil etc etc but for a different engine of different size the connections were again different

 

[Budget_Blaster]

mine has a setting for 2-4 strokes.im not sure if its the same as yours then.

mine doesnt read accurate either its double too so do what i do and when you see youre approaching 18,000rpm shift.