Page 61 - Koso-Catalog
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Wideband a/f ratio, boost and intercooler temperature meter
This X‐2 multifunction unit is a great tool for all horsepower enthusiasts that are upgrading their engine with turbo or supercharger. Following many requests, we came up with a unit that combines boost pressure, air/fuel ratio and a temperature function which can be installed on the cooling system or the intercooler. This
meter is made to resist cold temperature, snow,
water and dust.
The X‐2 meter
will give you precious informations to help you pull out more horsepower out of your engine or can save it from bad damages.
  Specifications
(R = Range U= Unit) Digital boost pressure
Temperature
R: 32 ~ 482 °F (0 ~ 250 °C) U: 0.1 °F or °C (alternative)
Over temperature setting
R: 140 ~ 482 °F (0 ~ 250 °C) | U: 1 °F (°C)
Indicator lights
AFR (green), High AFR (red), Low AFR (red), Pressure (red), Temperature (red)
Effective temperature range
14 ~ 140 °F (-10 ~ 60 °C)
Effective voltage
DC 12 V
Sensor included
Boost sensor: BF521000
Bosch oxygen sensor: 28-BOSCH Temp. sensor: BF030000
  R: 0 ~ 15/30 psi | U: 0.5 psi
Peak recall
positive R: 10 ~ 30 psi | U: 1 psi negative R: -1 ~ -30 psi | U: 1 psi
Level boost pressure
15 psi R: 0 ~ 15 psi | U: 0.5 psi 30 psi R:0 ~ 30 psi | U: 1 psi
Boost pressure warning R: 1 ~ 30 psi Digital air/fuel ratio R: 9 ~ 24 | U: 0.1 Level air/fuel ratio R: 9 ~ 21 | U: 0.2 Over LEAN setting R: 14.8 ~ 24
Over RICH setting R: RICH 14.6 ~ 10
Warning function
Screen changes blue to amber
              X-2
   Compatible with 2 stroke or 4 stroke engines
”2 stroke adaptor” BG001855 is mandatory when used on a 2 stroke application
Requires a DC 12 V battery absolutely (will not function with our AC/DC converter) !
     7/8’’
4 1/4’’ (108.7 mm) (22.5 mm)
1 1/16’’
                       (26.8 mm)
  part
BA029001
snowmobile version
                59
 2 5/8’’ (66.7 mm)
























































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