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Fuel Gauge adjustment?

Started by Nova, May 29, 2017, 04:53:35 PM

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Nova

My 92 reads very high (the needle is significantly above the full mark) when I fill the tank and even though it drops down nearly to the empty mark I don't think I have ever had to use the reserve. When it is on E and I fill it up I'm putting in maybe a little more than 4 gallons at most. Is that normal? If that is not normal, what could be the possible issue? Is there any way to adjust the fuel gauge so it reads more accurately?

Pat Conlon

When you have exactly 1/2 tank, what does the gauge needle show?

You can adjust the fuel sender float rod by bending it up or down.
This may take you a couple of try's to get it right.
Put in exactly 1/2 tank of gas. Bend the rod so the gauge needle shows 1/2 tank.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

CutterBill

Or... disconnect the hose from the fuel pump and let the tank drain. Now bend the rod until the gauge reads Empty.

Personally, I don't care if the gauge is not accurate when the tank is full.  But I really want to know how much is in the tank when it's getting close to empty. 
Bill
Never Slow Down, Never Grow Old.

Current Stable:                                                     
FJ1100                                              
FJ1200 (4)
1999 Yamaha WR400 (street-legal)
2015 Super Tenere
2002 Honda Goldwing

ZOA NOM

I exclusively use the tripmeter and calculate the MPG at every fillup. My gauge is way above the full line at fillup too. 
Rick

Current:
2010 Honda VFR1200 DCT (Full Auto!)
1993 FJ/GSXR 1200 (-ABS)
1987 Porsche 911 Carrera (Race)
1988 Porsche Carrera (Street)
Previous:
1993 FJ1200 (FIREBALL)
1993 FJ1200ABS (RIP my collar bone)
1986 FZ750
1984 FJ600
1982 Seca

aviationfred

You can replace the gauge fairly easy with a brand new Speed Hut gauge. The gauge is programed to your tanks fuel sending unit. You have the ability to set the Full, empty and low light position wherever you choose.

I have the Fuel/volts combo gauge

Here is a couple of examples.

In the dual gauge, You can have Speed Hut change the 2nd gauge to read Oil Temp for about $35.00 extra. The 3 gauges shown run between $105.00 to $150.00, give or take a few dollars. I am extremely happy with my Speed Hut gauges.


Fred

I'm not the fastest FJ rider, I am 'half-fast', the fastest slow guy....

Current
2008 VFR800 RC46 Vtec
1996 VFR750 RC36/2
1990 FJ1300 (1297cc) Casper
1990 VFR750 RC36/1 Minnie
1989 FJ1200 Lazarus, the Streetfighter Project
1985 VF500F RC31 Interceptor