Question about 1999 Suzuki GSF 600 N Bandit

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The petrol tap is blocked

The petrol runs when the tap is in the prime position but not in the on or res position

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

Benimur
  • 6966 Answers

SOURCE: wont run on prime setting on fuel tap

Hi,

On most Japanese bikes, the PRI position allows fuel to flow from the tank to the carbs even if the engine is not running. In the ON position, the fuel gate valve would only allow fuel to flow if there is vacuum which of course would mean that the engine is running. There is normally a vacuum hose from the intake manifold of cylinder 1 that leads back to the fuel valve that triggers the internal diaphragm to open the fuel line.

If we are to assume that for some reason the PRI position is blocked, then switching the "fuel tap" to this position would not allow fuel to go down the carbs. Thereafter, the engine used what fuel was left inside the carbs (100 meters) and the engine died. Switching the "fuel tap" back to ON again would not allow fuel to flow down from the tank to the carbs since there is no vacuum and very little vacuum when starting the bike; and the bike would not start, no fuel inside the carbs.

Correct action of course would mean overhauling the "fuel tap" and initially setting it to PRI and then to ON soon as the engine is running on its own. Temporary remedy/workaround would be to manually feed fuel to all the carbs with the use of an external container with rubber hose/fitting. Alternately, you can try spraying starter fluid or car injector cleaner. This should be done with the air cleaner off. A word of caution, in some older bikes I have worked on, this condition would result to an overflow of the carbs soon as the engine starts indicating that the float(s) inside the carbs are sticking.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information. Good luck and kind regards. Thank you for using FixYa.

Posted on Nov 11, 2008

  • 16 Answers

SOURCE: Fuel tap position for 1994 GSXR 750

down for on, forward for reserve, backwards for prime

Posted on Feb 21, 2009

  • 125 Answers

SOURCE: my sukuki 125 inturder petrol problem

Check the vacuum line from the fuel valve to the intake,(between carb and engine)

Posted on Jun 15, 2009

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  • 1 Answer

SOURCE: hi i have a drz 400 sm which will only start and

I had this problem too. Further investigation showed that I forgot to reattatch the vacum tube that runs from the top of the carb to the fuel valve, sucsion from this lets the fuel through.

Posted on Jul 01, 2009

protuha
  • 208 Answers

SOURCE: I hav a gsf 600 bandit year2000 WITH A FUEL

Chack fuel filter, maybe it's dirty, plugged or incorrectly positioned. It hase arrow which shows fuel flow direction. Maybe someone put it up side down.

Posted on Dec 13, 2010

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1 Answer

Which way is on position for gas on my 2005 katana gsx600f


Arrow pointing up on the knob is (RES) reserve to the side is (PRI) prime which bypasses the vacuum part of the tap and ON is downwards.use prime only when you have run out of fuel n on and you need to switch to reserve ,prime will let you refill the carbs without running the engine.

Mar 14, 2015 | 2005 Suzuki GSX 600 F (Katana)

1 Answer

Gas tank


no...Full is on...res is reserve...Pri is Prime.
Do not leave it on prime !!! This is for re-filling the carbs when they have been emptied.
It is a vacuum operated tap, when switched to full or reserve, fuel only flows when the engine turns over...prime flows fuel all of the time.
The tap should be set to full unless fuel is running low.
Leaving it on prime when not running can lead to serious engine damage !!!

Mar 26, 2014 | 2008 Keeway Supershadow 250

1 Answer

2008 Keeway Super Shadow


Full is on...res is reserve...Pri is Prime.
Do not leave it on prime !!! This is for re-filling the carbs when they have been emptied.
It is a vacuum operated tap, when switched to full or reserve, fuelicon1.png only flows when the engine turns over...prime flows fuel all of the time.
The tap should be set to full unless fuel is running low.
Leaving it on prime when not running can lead to serious engine damage !!!

Mar 26, 2014 | 2008 Keeway Supershadow 250

1 Answer

Why is fuel draining into my oil?


the float valve that cuts the petrol off is not sealing so the carbs(s) flood into the air box then runs down the engine breather pipe in to the engine.dont use the bike as the enginewill be damaged. or if you have a diaphram fuel tap the diaphram has gone, take the petrol pipe off the tap there should be no fuel coming out when the tap on or on res if there isfuel coming out you need a new tap

Feb 13, 2013 | Motorcycles

1 Answer

I have a 78 650 Yamaha what position is off on the pit-****. I see res, on and pri


Hi, there is no off position on this tap, it is vachume opperated which means no fuel will flow from the tap in either the on or reserve position unles the engine is being turned over, so removing the fuel pipes from the tap will not cause any fuel to leak from the tap when in either of these positions, it will however flow in the prime position so avoide this position while the fuel lines are removed, if the fuel does flow in the on or resrve poss, the diapram is faulty and will need replacing

Jul 30, 2011 | 1978 Yamaha XS 650 SE

1 Answer

Where should the gas tank switch be located for operating and when storing? There is three locations but I cannot tell which is which except the res. The other is RPI? I am not sure what that is. It also...


The three positions will be,
on normal riding.
res(reserve, when it runs low).
pri (prime).
so leave it on or res for riding and storing, it will be a vacumn opperated tap that turns itself off when the engine stops and there is no longer vacumn.
Prime is for initial priming of carbs only, do not ride it or store it on prime.
The second key may be for a steering lock on the side of the head stem.

Jun 10, 2011 | 2005 Suzuki Boulevard S40

1 Answer

Hi, On the fuel tap what is the Prime position function.


You have a vacuum operated fuel tap. It should have 'on' , 'res' and 'prime'.
In the prime position fuel will always flow from the tank. In the other positions the engine must be running to allow fuel to flow. If the bike has been standing for a few days, fuel will evaporate from the carbs and the bike can be difficult to start. By switching to prime for a minute, the carbs are replenished and starting should be easy. Dont forget to return the tap to on or reserve once started.

Sep 06, 2010 | 1997 Suzuki GSF 1200 Bandit S

1 Answer

What position on fuel lever is off there is fuel on, res, prime?


It is a vacumn opperated tap, fuel should flow on res or on only when the engine is running. fuel will flow on prime whether the engine is running or not.
There is no off, if fuel flows from res or on when the engine is stopped it needs a fuel tap kit. Also it is best to fix it as they have a habit of flooding the sump with fuel.

Aug 13, 2010 | 1980 Yamaha XS 400 Special

4 Answers

What position on the petcock is on off or res on a 93 katana gsx600f


There is no OFF, you have RES toward front , ON is all the way down, and prime toward back, PRI is used when it has been sitting for awhile. RES and ON wont let gas out unless bike is runnig. There is a vac hose on back of petcock that lets ON and RES work it must be connected..

May 29, 2010 | 1993 Suzuki GSX 600 F (Katana)

2 Answers

Position on a petcock for a 1994 suzuki katana 600which is on off and prime


I have the same problem on my gsx 600f! there is no markings to say which is ON, or PRIME, or RESERVE on the petrol tap!

I'd like to know before I run out of petrol on reserve!

Is the ON position with the arrow pointing down? lots of people seem to be asking the same thing across the web! Can we have a solution please!!!!

Oct 30, 2009 | 1994 Suzuki GSX 600 F (Katana)

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