Question about 1979 Yamaha XS 650 F

1 Answer

My xs1100 starts and drives fine then all of a sudden emptys the fuel filter and stutters,have cleaned carbs and replaced fuel hoses,washed out the tank.if you stop the bike and wait 5mins it fills the fuel filter and appears to be fine for another few miles,then repeats the problem

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,167 Answers

Try bigger pipes also the vaccum tube that alows air into the tank maybe blocked ?? get back to me

Posted on Oct 01, 2009


1 Suggested Answer

  • 2 Answers

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

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Hi, I have a 13.5hp Briggs & Stratton motor which starts and will only run on choke slow rpms and mild smoke.

check the point where the fuel hose goes to the fuel tank
there is very fine filter in the hose that could be blocked preventing full fuel flow
only running on choke indicates insufficient fuel flow

Apr 02, 2017 | Briggs & Stratton Garden

1 Answer

My Ryobi Brush Cutter will not run properly, It starts ok but I cannot get it to full power, it sounds like it is flooding almost. I have replaced the sparkplug, emptied the fuel tank and put in new fuel,...

There may be dirt blocking the fuel supply to the engine. You need to strip and clean the carb, preferably fitting a new carb kit at the same time. Clean out all the passages and orifices by blowing them out, but be careful of loosing small parts like filter screens and screws.

Jul 11, 2011 | Garden

1 Answer

I have a 1997 750ss kawasaki jet ski that has only done about 20hrs (has been in storage for 12 years) that was running fine (with a new battery) and has suddenly stopped. It turns over fine has new plugs...

There may be water in fuel,would suggest rebuild of carb,clean and new carb kit,the diaphragm may be damaged do to age,if fuel tank hoses were clogged then more than likely trash has clogged the jets.

Feb 15, 2011 | kawasaki Z 750 Motorcycles

1 Answer

I have 79 YAMAHA XS1100. I had a problem with 2nd

sounds like the float in one or more carbs are will hahe to remove the float bowls and check if the floats shut off the fuel supply..

Sep 05, 2009 | 1979 Yamaha XS 650 F

2 Answers

My Car won't start

Either the sending unit is bad in the tank, or you could have clogged fuel filter, or bad o2 sensors which would be on if your check engine light is on. I would first replace fuel filter, Also check fuel lines. Also if the check engine light is on, you could have bad fuel pressure regulator. You should check your fuel pressure at the fuel rail as well

Jul 20, 2009 | 1999 Kia Sportage

2 Answers

My poulan riding mower goes dead whether cutting or idling..already checked the gas tank,lines,filter,and carb for trash..all clean...what could be the problem?

Could be bad ignition system. Check for spark when it quits using a new spark plug. Why do you suspect the fuel system? Does the engine quit suddenly or sputter to a stop? Does the engine have to get hot before it will quit? Sudden stop is usually ignition loss whereas sputtering could be either fuel or spark loss. Safety switches--'rider present'--could possibly be a problem and cause ignition loss.

Jun 20, 2009 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

Engine runs but sputters after engaging blades

ck for water in carb bowl. also ck for filter in gas tank, or something in gas tank.

Jun 09, 2009 | Garden

1 Answer

Mower stutters when i turn up to full throttle.

you need to clean the breather out it is located on the side of the valves it is a rectangle shape and has a hose coming out of it to the air filter have you took the carburator out and cleaned the jets as well?

Apr 02, 2009 | Garden

1 Answer

Carburator problem

Hi and welcome to FixYa,

Offhand would suggest a rebuilt/clean of the carbs. A temporary workaround would be to switch off the fuel petcock, remove the fuel hose, partially drain the carbs and spray into the fuel hose (going into the carbs) injector/carb cleaner. Reinstall fuel hose, turn on fuel. Remove the air filter and start the bike. After warmup, rev while spraying injector/carb cleaner into the opening where the air filter should be. Get a hard paper/board (such as a folder) cut to a size bigger than the air filter but would fit inside the opening of the airbox. Rev/pump the bike slowly building the RPM at about 4~5K suddenly cover the opening (with the board) to fully choke the carbs while maintaining throttle. Before the engine dies, remove the cover. Spray again while revving. Repeat choking/spraying several times. The idea is for the vaccum to draw the clog/blockages.

Pls post back result(s). Good luck and Thank you for using FixYa.

Jan 18, 2009 | 1994 kawasaki VN 750 Vulcan

3 Answers

Toro mower with clogged fuel line

That doesn't sound like a clogged fuel line, it sounds like your carb either needs a cleaning or a rebuild. If your fuel line was clogged than you wouldn't be getting fuel to the carb and you wouldn't be able to prime it. First check the smell of your fuel, if it smells stale then you sould empty it out and put fresh fuel in.Next take the air filter housing off unless the carb is exposed enough to get to easily. If you clamp off your fuel line (unless you have a shut off) so no fuel passes to the carb., wipe down or with an air hose blow off the bowl of the carb so there is no debris, pull the screw out of the bottom of the car., be sure to use a clean container to catch the fuel and look for any debris in the fuel. You can also take the bowl off and see what the inside of the bottom of the bowl looks like. Your looking for any debris or gelling of the fuel inside of the carb. if anything is noticed then the carb. is going to need atleast a cleaning. If a cleaning doesn't work then you may need a rebuild kit. Any qeustions on any of this please feel free to ask me.

Jan 09, 2009 | Toro Lawn Mower With Toro Power Tools

Not finding what you are looking for?
1979 Yamaha XS 650 F Logo

Related Topics:

247 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts


Level 2 Expert

281 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1147 Answers


Level 3 Expert

2600 Answers

Are you a Yamaha Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides