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KAWASAKI 500KLE CANNOT TURN FUEL TAP TO PRIME POSITION

CANNOT TURN FUEL TAP TO PRIME POSION

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

mb50sa
  • 79 Answers

SOURCE: Hi, On the fuel tap

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.

Posted on Sep 06, 2010

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

  • 11 Answers

SOURCE: suzuki gsx600f 1991, has been stood for a few

If you are in a location with high humidity there is a chance water built up inside the tank. Best solution would be to completely drain the tank and refill with new gas. Run position on the fuel tap is 6 o'clock.

Posted on Feb 28, 2011

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1 Answer

Which way to turn the reserve tank switch on


There are 3 positions (as you probably know). Reserve, on and prime. Under normal conditions with a properly working fuel tap, prime is the by-pass that allows fuel to flow through without the engine running. On and reserve will only allow fuel to pass when the engine is running (uses vacuum from the carb).
  • PRIME has the handle facing down
  • ON is when it is facing the front
  • RESERVE when it faces the rear.
Do not leave the tap in the prime position EVER as this allows the fuel to fill the carb and with the engine running or attempting to start will cause hydrolock that will bend the pistons con-rods. Only use it to fill the carb with fuel and turn it to on or reserve as soon as you can.
If the bike runs using the prime position but will not run when on or reserve, then you may have a vacuum problem or a dodgy tap......assuming you have fuel that is.
Hope that helps.

Sep 14, 2015 | kawasaki KLE 500 Motorcycles

1 Answer

KX65 will not start, has spark and fuel, What's next?


make sure you have compression
ensure fuel will flow out of garb drain bowl when fuel tap on (you need to override vacuum operation by "prime" position)
check the reed valve, must open/close properly
new spark plug

Aug 03, 2014 | 2004 kawasaki KX 65

1 Answer

Had a flat battery, tried to push start for a while but did not start.replaced battery, now fuel seems to leak from air filter body when try to start, still no go. is this flooded and how to unflood?


definately flooded
not sure of your model but if it has a vacumn fuel tap there is no OFF position
you need to drain the carb bowls with the small drain screws at the bottom, and make certain the air filter element is not full of fuel, and check the oil is not overfull due to fuel contamination.then try and start with full throttle. Do not run the bike with fuel tap in PRI position or it may flood again

If it has an off position on fuel tap
check air filter
check oil
turn fuel off
start with full throttle
turn fuel on

Apr 07, 2011 | kawasaki ZZR 250 Motorcycles

1 Answer

Petrol leaking from the exhaust pipe Kawasaki Zephyr 550; high leak rate (more than 1 l/hr)


At least one carb is flooding badly and will need a clean, but the vacumn fuel tap is also leaking or it is in the prime position.

Mar 23, 2011 | 1990 kawasaki Zephyr 750

1 Answer

Where is the prime position on the fuel on a GSX 750 fn


THIS IS QUITE EASILY RECTIFIED, REMOVE THE FUEL LINE FROM THE TAP,SLOWLY TURN THE TAP FROM 1 DIRECTION TO THE OTHER, WHEN FUEL FLOWS READILY FROM THE OUTLET ON THE TAP, NOTE THE POSITION ON THE TAP AS FUEL WILL ONLY FLOW WHEN IN PRIME POSITION. {VACUME TYPE TAP REQUIRES ENGINE TO RUN FOR FUEL TAP TO OPEN, WHEN NOT RUNNING FUEL SHOULD ONLY EXIT THE TAP IN PRIME POSITION). REASON FOR FUEL FLOW WHILE NOT RUNING WITH TAP IN ANY POSITION, COULD BE DIAPRAM FAILURE IN TAP.

Dec 04, 2010 | 1998 Suzuki GSX 750 F (Katana)

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

2 Answers

I have a 1986 ninja 1000r it will start and idle but as soon as i start to take off and get to bout 15 mph it will die?


This sound like a fuel supply problem, perhaps the fuel tap is stuck. you could try it with the tap in the pri (prime) position, if this helps it may need a new fuel tap rebuild kit

Sep 01, 2010 | 1986 kawasaki GPz 1000 RX

1 Answer

My 1996 750 Katana runs but it will only run with


You may need to rebuild the fuel tap with a new diaphram kit.

The fuel tap has a small rubber diaphram and plunger, which can go hard, stick closed , or wear out and get a hole.
Also check the vacumn hose than opperates the tap is in good condition
Pri bypasses the vacumn opperated fuel tap, sometimes this can cause the carbs to flood or have higher than normal float levels..
Running it on prime can also cause the carbs to flood fuel into the engine filling the sump, which then s ucks fuel vapour through the crank breather into the airbox, and then through the carbs causing over rich.
If this has happened you also need to change the oil and fit a new air filter element

Jul 17, 2010 | 1996 Suzuki GSX 750 F (Katana)

2 Answers

Bike difficult to start when hot


possibly needs a valve adjustment. how many miles on the motor?

May 22, 2010 | 1997 kawasaki ZX-6R Ninja

1 Answer

Fuel tap position for 1994 GSXR 750


down for on, forward for reserve, backwards for prime

Feb 20, 2009 | 1993 Suzuki GSX-R 750 WP

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