20 Most Recent 1997 Yamaha Royal Star XVZ 1300 A - Page 4 Questions & Answers

Hello
Your gas tank petcock is diaphram operated.
there is a vacuum line coming off the intake, that goes straightb to the petcock.
when you turn the motor over a vacuum is created, pulling the petcock diaphram back and allowing fuel to flow to your carburetor. when you turn the motor off the vaumm is gone and the spring behind the diaphram pushes it closed and stops the fuel flow to the carbs.

Now the reason the carbs are overflowing is because the floats valves are not closing, in other words the floats are sticking.
Usually a good carb clean will cure the problem, especially for that year.
the older ones usually require new float valves/seats that are usually found in a good carb rebuild kit. You shouldn't need one.

If your really broke try tapping on the bowls of the carburetor lightly, while the engine is running, sometimes the vibration will vibrate a particle loose that may be holding open the float valve.
if it works then the fuel should stop overflowing while running.

if you know how to work on it, try this, with the engine off.
open the carburetor drain screws so that fuel will run out the carb. drain. flush out the carb.
get a container to catch the gasoline.
while fuel is flowing tap the carb bowls a few times then closed the drain screws.
clean up any spilled gasoline .
start your bike.see if they stop leaking and the floats are closing.
if it still leaks, you'll need the cleaning.

Happy Riding
Best Regards
Big Al

Check fan relay.OR fan sencer Also check fuses MOPAR KENNY

Backfiring is a sign of an air leak. Somehow air is being allowed into the exhaust system. If you or a previous owner has drilled out the baffles to increase sound, this could be the cause. A burned valve could contribute but is not likely unless the engine has been severely overheated. A burned valve will also cause poor performance and it can pop upon acceleration which was not mentioned in your original question so I doubt it is a valve causing the problem. Plus - these engines are pretty reliable and robust. I bet on the air leak.

Scott

In rare cases just by turning the ignition switch on your battery can crack between the cells. Have the battery load tested. Try hooking a car headlight bulb directly to the battery to see if it gets bright instantly or remove the battery and take it to the dealer for the load test. Try jumping the bike from a car battery (with the car turned off). This will also help verify if it is an issue with the battery. If the battery checks out good you may be dealing with an ignition switch issue. Try blowing out the key hole with compressed air to remove water.Pull the headlight out of the bucket and check for loose wire connections. Unrelated to the rain if a power wire has unplugged itself it could be the simplest fix ever just to plug it back in.

http://www.onlinemcparts.com/products/yamaha-royal-star-xvz1300-repair-manual-1996-2003-453384293-m374.html

Listen to the guy behind the counter.

Best bet is to go to www.venturers.org they cover the Venture and Tour Deluxe, excellent tech advice.

If you go to www.venturers.org their tech library shows how to replace the stator on the Venture...the steps removing the middle gear case cover (behind which lies the slave) are in the write up....great site!

You will be well advised not to use A2 stainless as the material is likely to fail and if you lose your brakes, that would not be too helpfull. Plus in the UK it will fail an MOT for that reason.

Yes, you can reuse that washer, as long as it looks in good shape and it is metal. If it looks bent, do not use it. If its an o-ring, replace it. If its a teflon washer replace it.
It wont hurt to put a small dab of pipe dope on the plug before you put it in. Some people perfer it just for piece of mind.
From my personal experiences, i'v reused all of them and just check for a leak after i add the oil.

replce your
valve seal

low milage tells me most likley the carb is gummed up. You may need to remove and clean out or try some fuel injection cleaner. Use twice as strong as recommended. Your description points to not enough fuel when cold which is when it needs the most. If your handy I would remove the bowl and blow out all chambers and tubes with brake cleaner.

There are two bolts, one on each side, from the underside front of the tank to mounting holes on the frame just behind the fork pivot, they require an allen wrench to loosen. A third mount, a bolt behind the tank, under the front seat (yes, you'll have to remove the seat) can be loosened with a small adjustable wrench. Remove the trim plate from around the gas cap (4 allen bolts), disconnect the harness (two wires), disconnect the fuel line from the petcock (TURN THE PETCOCK TO "OFF" FIRST), and the tank's ready to go...

There is a non-serviceable cam in the low/high beam switch that changes contacts on the switch, sounds like it's broken. Bite the bullet, and have the switch replaced.

Hello. You have some crud in it somewhere. Get a bottle of a fuel additive called seafoam, at most auto parts stores. Pour the measured amount into the fuel tank and top it off with gas. Then operate it for a few miles. You will be amazed. Joe

Hello, I believe I know what your problem might be as I have experienced the exact same thing you are going through. As long as you changed your fuel filter too, (I hope you did) the problem is your power jets are starving because the port between the power jet and the Venturi in the carburetor throat is restricted or gummed up with varnish. When you pulled your carburetors apart was there varnish in the bottom of the float bowls? If so , you'll have to pull the carburetors apart one more time. Although you clean the jets , you probably have varnish in the line that runs between the jet and the Venturi. Normally , the carburetor assembly is soaked in an acid bath to completely dissolve the varnish that accumulates during the evaporation of the fuel , especially when the motorcycle sits for a long time without use. Since the motorcycle idles OK , you'll have to clean the main jet (power jet which is the jet with the bigger hole) port between the power jet itself and the Venturi in each carburetor. You'll have to unscrew the power jet and remove it, then insert a long stainless steel cleaning wire into the port while pouring solvent into the port at the same time . Bend the wire and spin it back and forth while you feed it through the port of all the way up to the Venturi until you can see it in the carburetor throat. Once you have completely cleaned it use pressurized air to blow through the port. Also , while you're at it , make sure all of the ports are clean and free of varnish . It's not, clean them the same way you did the power port. Finally , be certain your floats are set correctly . The best way without using the gauge tool is to invert the carburetor and make sure the top of the float is parallel with the carburetor base.

sounds like the float level height is set a little low. you might have accidently readjusted the setting. just raise the float level height a little bit and you should be okay.

with the key on the left hand side down by the ridder seat turn the key and pull up on seat sometimes to get the key to turn you have to push down on the rider seat

4.8-gallon, teardrop-style fuel tank (including a 0.9-gallon reserve)
It has a cruising range of more than 170 miles (273.58848 k)

good!