Question about Honda CBR 600 F(4)i Motorcycles

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Indication problem on dash

When tank is down to reserve, fuel does not show in lcd display ,its a 2001 bike with fuel injection ive tried changing the dash and the fuel pump assembly still not working, the dash runs its self diagnosis routine and the reserve blocks come on briefly but wont come on otherwise any ideas thanks richard.

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Sender Unit is Malfunctioning, if the unit has two wires try shorting these out, if you get a positive reaction on LCD then the sender unit has become temperamental. Change it. Its likely that there will be more than two wires so you will have to visit your dealer for diagnostics. If it has 1 sender wire from the sender unit connect this to earth and check for positive reaction at LCD, this would also indicate sender unit intermittent breakdown. Good-luck!

Posted on May 12, 2009


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1 Answer

My bike bike runs on main tank even on low somtimes shows some missing. I think my reserve tank doesn't work.Any suggestions?

Check the reserve fuel line and the main fuel line to make sure they haven't been switched. I purchased a Suzuki Intruder and was riding all the way to reserve to check the mileage and when I ran out I couldn't start it even though I switched to reserve. Turns out that someone had the tank off to service the air cleaner and had reversed the two fuel lines so the fuel valve was running the bike on the reserve tank tube. so when I switched to the reserve position it was hooked to the taller brass tube in the tank and the gas level was already below it. The tanks just have two brass tubes, one taller than another so gas cannot be sucked below the taller tube when on main and then when switched to reserve it sucks from the shorter tube allowing the remaining gas to be used.

Jul 02, 2016 | 2011 Yamaha FZ16

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How to switch to reserve

If your tank has a petcock tap it has a reserve if the tap can rotate up towards the tank
But most bikes don't have a reserve now if fuel injected and a fuel gauge fitted

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Does a 2008 Harley super glide have a choke

This bike is fuel injected, therefore no manual choke. Choke or fuel enrichment in fuel injected terms is controlled by the ECM in conjunction with the engine temperature sensor. There is no 'reserve', but you will get a 'low fuel' warning light when fuel is low, same as cars.

Nov 08, 2014 | 2008 Harley Davidson FXD Dyna Super Glide

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2011 v star 650 stopped running mid ride

check fuel flow, possibly you got some dirt in the carb/injection that is stopping fuel flow. also check spark plugs see if they give a spark. best.

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2007 sportster gas reserve location

Hi Anonymous, if you have a carbuerator the petcock/fuel valve is located on bottom rear of the left side of the fuel tank. With the long end of the lever pointing straight back the fuel valve is in the off position and no fuel will flow to the carbuerator, with it pointing straight down the valve allows fuel flow from the gas tank to the carbuerator, with it pointing straight forward it is in reserve mode and you have roughly 1/2 to 1 gallon of fuel left in the gas tank. If you are fuel injected the is a low fuel warning light either on the dash or speedometer. If you have a fuel gauge refuel before it hits empty just like your car. Good luck and have nice day.

Btw, I’m available to help over the phone in case u need at

May 13, 2012 | 2007 Harley Davidson XL 883 Sportster

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Just got a trophy 3. dont know what position is which on the fuel tap? no markings.

Usually the fuel valve is this
Straight Down = ON
Straight Up = RESERVE
Horizontal/Across = OFF
There may be some difference with the manufacturers, or with custom fuel valves (chrome), also, fuel injected bikes usually do not have reserve or reserve position on fuel valve. If you have fuel injected bike, they do not like to be run out of gas, keep the gas level up.

Jun 24, 2010 | 1995 Triumph Trophy 900

2 Answers

Where is the reserve tank

Is your bike fuel injected or carbureted? If it is fuel injected the tank has a 4.5 gallon tank and that's it. If it is carbureted the fuel petcock is a three position valve (ON, OFF, RES), the valve is configured in the tank where ON allows fuel to flow until you are down to about 1/2 a gallon at which time you would turn the petcock to RES which allows the engine to use the last 1/2 gallon of fuel and gives you time to hunt down a gas station.

There is no separate "reserve" fuel tank.

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1 Answer

I have a hyper charger and v&h straight pipes. I can go 100 miles on a fill up and I am on empty. Is there a reserve or is does this sound odd?

Most non fuel injected bikes do have a reserve, under the tank on the fuel valve where the line goes from the tank to the carb..:)

Jul 31, 2009 | 1999 kawasaki VN 1500 Vulcan Classic

2 Answers

Ruuning to rich

yes definately could be a fuel regulator problem. with the tank lifted. you can see the fuel rail and toward the left you can see a diaghram style fuel regualtor. there is a small vaccum line that goes to it. take that line off and check for any signs of gas moisture. ive seen this to be a consistent problem with alot of the 929's.

Mar 25, 2009 | 2001 Honda CBR 929 RR Fireblade

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