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2016 Hyperstrada 939, 93 900ss, 2017 CRF250L RALLY, 2003 F650GS DAKAR, 1993 KLR250, 1986 HONDA TLR20
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Discussion Starter #1
Well I have a bad level sensor in my 93ss luckily I have a spare used one however I hate tossing hard to get parts.
I was wondering if anyone tried this yet there are complete thermistors in the can available on ebay. (see picture)
My plan is to cut the original can to access the plus wire while leaving enough of the old can to use as a place to solder on the new can. As long as it is placed at the same height it should work I think the hardest part will be accessing the positive wire. Any opinions or input welcome.
Regards,
JD
990749
 

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I would be worried if it was rated for submersion in fuel and whether it had any potential for sparking which would be disastrous in the presence of fuel vapors.
 

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2016 Hyperstrada 939, 93 900ss, 2017 CRF250L RALLY, 2003 F650GS DAKAR, 1993 KLR250, 1986 HONDA TLR20
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105 Posts
Discussion Starter #3 (Edited)
These thermistors are specifically made to be submersed in fuel.
search ebay to findone of the many available.
look for
Automotive Fuel Level Sensor Fuel Pump Alarm Sensor NTC Thermistor
 

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too much VooDoo engineering for me lol
 

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Read this thread.
 

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Read this thread.
The old SuperSports, like OP's 1993, don't have computer do-jiggery.
 

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2016 Hyperstrada 939, 93 900ss, 2017 CRF250L RALLY, 2003 F650GS DAKAR, 1993 KLR250, 1986 HONDA TLR20
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Discussion Starter #7
I read through that thread it was very good. But yeah its not going through a computer. 12v flows through the lamp to the thermistor the other side of the thermistor is to ground as it heats up resistance drops and grounds the bulb intern lighting it. So when its submerged in fuel there is not enough path to ground hence bulb off when in air current flow increases resistance drops the bulb will light. What I do not know is if the spec on those ebay sensors will work. Hey I have pissed away 15$ on worse I will give it a try. What I like is the sensor is already in the can i can just solder it to part of the original.
JD
 

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1994 900SS CR, 2002 998 Trackbike
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The whole thing is pressed together pretty good but if you can get enough purchase on the positive wire I think this plan can succeed.

Better than my "simple" idea of making a new sensor with a float switch. I could not get it to seal, the fuel was sleeping through the strands of wire (fuel pump power supply) inside the insulation, and into the plug below the tank. It was too much of a fire hazard to keep trying.
 

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you can buy the genuine thermister for the later model bikes, not too expensive for a genuine part. solder that in.
 

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2016 Hyperstrada 939, 93 900ss, 2017 CRF250L RALLY, 2003 F650GS DAKAR, 1993 KLR250, 1986 HONDA TLR20
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105 Posts
Discussion Starter #10
Well the chineese sensor came amd its a no go wont make the light come on.
 
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