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Discussion Starter #1
Hello...
...anybody know the inside diameter of the top radiator hose? (in MM)

Thanks Eric
 

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You need an 18 mm coolant hose temperature sensor adapter (Koso):
http://www.kawaner6s.es/forum/index.php?showtopic=10608

Coolant only flows there from the engine when the thermostat is open though... It'd be easier to read engine oil temperature. A common 1/8" pipe thread temperature sender could be installed in the oil pressure access plug (3/8" pipe thread) by tapping a 1/8" pipe thread hole in it, or with a 3/8" NPTF male (1) to 1/8" NPTM (2) female adaptor.




Brass Hex Reducer Bushing 3/8" NPTF Male Pipe x 1/8" NPTF Female Pipe (#33220-06-02 $0.86): http://www.discounthydraulichose.com/Hex_Reducer_Bushing_Brass_p/33220.htm

Kawasaki # 57001-1233 $5.56 from: http://www.cheapcycleparts.com/Street.aspx

Koso temp gauge: http://www.denniskirk.com/jsp/product_catalog/Product.jsp?skuId=&store=Main&catId=&productId=p408372&leafCatId=&mmyId=

Shindy temp gauge: http://www.denniskirk.com/jsp/product_catalog/Product.jsp?skuId=&store=Main&catId=&productId=p40663&leafCatId=&mmyId=

Cyberdyne digital: http://www.cyberdynegauges.net/temperaturegaugesproduct.php

http://www.race-mart.com/items/products/instruments~gauges/cyberdyne-gauges/cyberdyne-engine-oil-temperature-gauge/CYBA022E361Y-detail.htm
 

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Discussion Starter #3
thanks Invader

Thanks Invader..... good info!!! (will check this out)

Eric
 

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I was also looking at tapping onto the ECU's water temperaure sensor output signal to operate a gauge. According to jh61 who showed the available LED display: "The probe is an NTC. Its value decreases in logarithmic mode when the T increases. Therefore a signal conditioning (with high impedance) is necessary to obtain a linear V/T scale."

Water temperature voltage input is 5 volts as in automotive applications. Voltage output should be between 2.80 and 2.97 volts at 20° C (68° F).
Water temperature sensor resistance:
–20°C (–4°F): 18.80 ±2.37 kΩ
0°C (32°F): About 6.544 kΩ
40°C (104°F): 1.136 ±0.095 kΩ
100°C (212°F): 0.1553 ±0.0070 kΩ

Have you seen this?



Lamps
 
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