Hawk gas gauge not working.

OneLeggedRider · 03-08-2019, 11:15 AM

And yes I did try to search the forums first and it said the word gas is either too short or too long so it brought a bunch of threads about gauge clusters.

I hadn't really noticed before today but I've got the tank about half full and the gauge hasn't budged off the E. Just wondering if this is a common thing or maybe a wire is bad etc. I'm not even really that worried about it because most bikes don't have them, but..

**JerryHawk250** · 03-08-2019, 11:24 AM

Pull the tank and check the wire and connector for breaks or bad connections. I recently had to solder the connection on the sending unit. It's just crimped on there and the slightest bit of corrosion will make it not work.

Here a thread that someone else posted and where I got the info from to fix mine.
http://www.chinariders.net/showthrea...t=sending+unit

OneLeggedRider · 03-08-2019, 11:46 AM

Thanks Jerry, I'll look into that as soon as this bug passes.

Red Hawk · 03-08-2019, 12:13 PM

I remember humanbeing saying the float would putout O - 100 Ohm's empty to full on the tank sensor's output. Check that with a multimeter !

41bigdawg · 03-08-2019, 01:38 PM

Check your connections behind the headlight too. Mine quit once and that is where the problem was

timcosby · 03-11-2019, 06:07 PM

Quote:

Originally Posted by Red Hawk

I remember humanbeing saying the float would putout O - 100 Ohm's empty to full on the tank sensor's output. Check that with a multimeter !

and it has metal ear on each side that the arm stops on that you can bend till you get the correct readings. i remember 10-90 but either would probably be close enough.

Jeff46 · 03-11-2019, 07:14 PM

Is it normal for the gauge to bounce around like crazy while riding?

Red Hawk · 03-11-2019, 10:02 PM

Ya, especially if your tank is half full. I thought about adding a 5k Ohm resister to slow the effect. I could use a Radio Shack now.

Painlesstom · 03-14-2019, 07:35 PM

I pulled my sending unit apart and took the slop out of the arm that caused a connection break in the pontentiometer arm. Works perfectly and reliably now. http://www.chinariders.net/showthread.php?t=23159

03-08-2019, 11:15 AM	#1
OneLeggedRider Join Date: Nov 2018 Location: Stockport, Oh. Posts: 1,442	Hawk gas gauge not working. And yes I did try to search the forums first and it said the word gas is either too short or too long so it brought a bunch of threads about gauge clusters. I hadn't really noticed before today but I've got the tank about half full and the gauge hasn't budged off the E. Just wondering if this is a common thing or maybe a wire is bad etc. I'm not even really that worried about it because most bikes don't have them, but..
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03-08-2019, 11:24 AM	#2
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,585	Pull the tank and check the wire and connector for breaks or bad connections. I recently had to solder the connection on the sending unit. It's just crimped on there and the slightest bit of corrosion will make it not work. Here a thread that someone else posted and where I got the info from to fix mine. http://www.chinariders.net/showthrea...t=sending+unit __________________ 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel Last edited by JerryHawk250; 03-08-2019 at 11:40 AM. Reason: Added link to thread
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03-08-2019, 12:13 PM	#4
Red Hawk Join Date: Jul 2018 Location: NEPA Posts: 273	I remember humanbeing saying the float would putout O - 100 Ohm's empty to full on the tank sensor's output. Check that with a multimeter ! __________________ 2018 Hawk P&P Decked .040 off the head. 17/43 D.I.D. 428, NGK Iridium plug, DeCat, Wrapped pipe, Custom S.S. Muffler core, Nibbi PE30 115/35, L.E.D. Lights, Digital Cluster, USB port, Cutting Bord skid plate, Oil cooler w/ custom CRF oil filter inline, 5Wt fork oil, Rear Shock, CNC Back Rack, 30mm FAT bars, Bark Busters, ProGrips, Adjustable levers, Shinko 700’s lots of Loctite!
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03-11-2019, 10:02 PM	#8
Red Hawk Join Date: Jul 2018 Location: NEPA Posts: 273	Ya, especially if your tank is half full. I thought about adding a 5k Ohm resister to slow the effect. I could use a Radio Shack now. __________________ 2018 Hawk P&P Decked .040 off the head. 17/43 D.I.D. 428, NGK Iridium plug, DeCat, Wrapped pipe, Custom S.S. Muffler core, Nibbi PE30 115/35, L.E.D. Lights, Digital Cluster, USB port, Cutting Bord skid plate, Oil cooler w/ custom CRF oil filter inline, 5Wt fork oil, Rear Shock, CNC Back Rack, 30mm FAT bars, Bark Busters, ProGrips, Adjustable levers, Shinko 700’s lots of Loctite!
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03-08-2019, 11:46 AM	#3
OneLeggedRider Join Date: Nov 2018 Location: Stockport, Oh. Posts: 1,442	Thanks Jerry, I'll look into that as soon as this bug passes.
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03-08-2019, 01:38 PM	#5
41bigdawg Join Date: Sep 2018 Location: Tennessee Posts: 41	Check your connections behind the headlight too. Mine quit once and that is where the problem was
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03-11-2019, 07:14 PM	#7
Jeff46 Join Date: Jan 2019 Location: Corpus christ TX Posts: 27	Is it normal for the gauge to bounce around like crazy while riding?
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03-14-2019, 07:35 PM	#9
Painlesstom Join Date: Feb 2019 Location: Ludowici, GA. Posts: 19	I pulled my sending unit apart and took the slop out of the arm that caused a connection break in the pontentiometer arm. Works perfectly and reliably now. http://www.chinariders.net/showthread.php?t=23159
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