Hey everyone, Have had my NSR for about a year now and have slowly been doing some upgrades to it and one was a Koso Digital gauge, problem is that its not picking up my tach reading and have tried to wire it different ways according to the Koso install sheet and have played with the different setting seems to semi pick up but never reads correct???? Help??? Ideas?

tried straight to old output wire, also already tried wrapping it the required 5 times. Some success with the wrap but not correct reading.

all old clusters and lights worked correctly

1989 NSR 250 with de-restricted wire splice
Koso GP STYLE SPEEDOMETER RX-2

Well, if all else fails, read the manual.

You'll have to adjust the tacho via KOSO settings.
Search the main menu for "hi", "lo" and "pulse" settings. The manual should have adequate notes for the calibration.

Nick
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2t-racelab.com

Actually have been rereading it for a while. Think my problem is its set up for a 180 being 2 stroke and a 365 being for but my engine is the good ol 90. Anyone have any ideas how the wiring can be done?