Question about 1994 Yamaha XV 535 Virago DX

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Virago blowing out through air filter

Bike has sat for years yet seemed to be turning over ok. Solved fuel problems and bike fired up but back cyclinder is not right and air is comoing out the air filter.Is this valves or piston ring problem? Thanks Will.

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  • 665 Answers

Will, let me tell you the "Old school" way to fix this.(1) Remove all of the spark plugs. (2) Disconnect the fuel lines. (3) Pour light weight oil directly into the heads.(I know, sounds weird) (4) Crank Crank Crank Crank. Until the engine turns smoothly. If the valves were stuck, this should cure it! (5) Blow the oil out by the compression of the engine cranking. (6) Pour alcalhol into the cylindars to clean the oil out of the top of the pistons.(Starting fluid also works well) (7) Again, Blow it out using the compression of the engine. (8) Put everything back together and fire it up! NOTE!!!! Any time you know you are going to store anything with an internal combustion engine, treat the engine in the same way, by pouring oil into, and onto the pistons directly. This prevents seize ups, and helps to preserve oil seals. ^^

Posted on Dec 10, 2014

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Posted on Jan 02, 2017

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SOURCE: 95 xv750 Virago fuel leak

Probabilly a stuk carburettor float or needle.
Try to solve this problem to gently tap on the carburettor bodies. If this doesn't help you have to clean out the carburettors, and/or replace the float neeldes

Posted on Apr 02, 2009

  • 3567 Answers

SOURCE: yz 250 2008 possible 5th gear stripped?

I doubt that any gears are stripped. Believe me you would have known it when it happened at 40mph which is where you would have to be in 5th gear. This is a bent shift fork. The actual gear is fine. The slider gear is not moving far enough to engage with 5th gear. The YZ does tend to have this problem in 5th and 1st. "Dirt rider Magazine " did a story on it. Best to let the shop do the repair as the entire motor gets torn down into about 100 parts.

Please rate this solution. Thanks!

Posted on Apr 08, 2009

  • 3567 Answers

SOURCE: bike only fires once

Okay, let's have a look at it. Say Ahaaa.
The probable cause of the problem is not the spark. Get a fresh set of Stock NGK spark plugs, ground the plus to the engine, and check each cylinder for spark as the starter button is pressed for 3 seconds or so. I will wager that the spark is present.

The likely problem is the fresh gas was put into a very rusty gas tank. Bits of rust now inhabit your carb and are having fun plugging up the carb. Look at the gas valve. With a little luck there is a small bowl behind the valve. Remove it and tell me what you see in the bowl.

Posted on Apr 11, 2009

  • 635 Answers

SOURCE: motorcycle back fires when you let off throttle,

Your fuel mixture is incorrect, take a look at your plugs, if they are white or clean it's too lean, black and sooty too rich, grey to light tan good mixture.

Posted on Apr 05, 2010

  • 653 Answers

SOURCE: Yamaha Virago 535 Fuel Pump Dead

My first question: is it ok to run the bike using only gravity fed fuel if I'm ok with a top end of only 60 mph, or am I damaging something else on the bike by doing that?
To answer your it, you fuel pumps still works and you are not doing anymore harm than possible.

**My second question: is there a way around buying the $300+ fuel pump in order to get the bike running properly again?
YES, go to a bike dismantler/wrecker who does the same tipe of bike

***My third question: WHY DOES THE FUEL PUMP COST
$300+!!?!?!??!
Well, can not answer that because I don't know....

Good enough?

Posted on Aug 01, 2010

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1 Answer

Bike stalls at idle and under load when hot or cold?


Hi Todd, sure sounds like a fuel problem, since i dont if you have carb or fuel injection lets start with your carb. remove the float bowl and see if there is water in the bottom. if so remove fuel tank drain it completely clean the filter then air blow it dry also mahe sure the line from petcock to carb is not pinched or bent to restrict flow then check your vacuum line to the petcock is attached at both ends and is not cracked max vacuum is necessary to pull the diaphram in the petcock to allow fuel to flow, disasemble petcock and check rubber diaphram for cracks or pinholes. reasemble petcock and check with vacuum gauge to make sure its holding vacuum. put 1 gallon of uncontaminated fuel back in tank and take it for a ride.
if you have fuel injection, check fuel pump pressure sorry i dont have specs on that but call your local service dept and they can hook you up. clean fuel filter then blow dry tank and proceed as above. if none of this helps get back to me and we can try some electrical trouble shooting good luck

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I got a 1982 yamaha virago xv920 it won't start back up after the motor is hot


Check your switch wires are all ok ,,
Then check the carbs are getting fuel when you have the problem... then make sure your air filter its clean ,,if it is not clean replace it for a stock filter for your bike,,,as long as you have fuel and air you should be in business...

Also buy yourself a workshop manual for your bike pal i highly recommend it

You can then check your valve clearances this my also be the culprit to your issues....hope this helps

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Fuel leaking from air box after shutting down


Hi
Thats the float valve seals not shutting off, did you clean them & set the float heights?
The overflows from the carb bottoms must also be blocked for the fuel to fill up the carbs which then leaks into the air filter
Check also that the fuel tap turns off when bike is not running

Ride Safe
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Scooter has not been started for over 1 year and will not start. New battery added and fuel has been reolaced. Scooter will turn over but not fire. Is there a fuel on/off switch? Is there a choke?


Start by checking to make sure the kill switch is set to "run", as nothing will start the bike if it's "off". And that all the fuses are good. (There should only be two)
Just like a no start problem with a car, it's going to be one of the big three: Fuel, Air or Spark. You can start by removing the spark plug and checking for spark by holding the plug with the plug wire attached, in a gloved hand, near to a part of the frame and turning the engine over. Be aware that it will shock you, if you are not careful.
If no spark, the Stator/ magneto (alternator), Capacitor Discharged Ignition or CDI (timing), or Regulator/Rectifier (voltage control and conversion) could be faulty, and there are no real good tests for these other than using another scooter that works, changing out the parts and rechecking.
If you do have spark, check the fuel by removing the air filter and spraying a small amount of starting fluid into the air intake. Please note however that these scooters require an exact airflow and the bike may not run or idle without it's filter.
Did you clean out the carburetor, or dump the float bowl? If so, it can take a ton of cranking from the engine to put out enough vacuum to draw gas back in. Starting fluid can sometimes get the carb to fire enough to start the engines vacuum.
And if that didn't work, air could be the problem. These Chinese scooters usually don't have many vacuum lines, there is one on the fuel pump, and one on the carb.There is a choke on the carb, but it is electronic and should be self adjusting, requiring no maintenance.

Jan 01, 2010 | RTO Gas Motor Scooter

1 Answer

Bike sat for year,has spark,cranks over,but wont start,bad gas maybe?


yes buddy drain tank put fresh fuel in and kick it over a few turns to allow fresh fuel to flow into engine get back to me if still no start

Oct 04, 2009 | 1995 Yamaha XV 535 Virago DX

1 Answer

Bike has sat up for a year or so,wont start,cranks fine,has spark,maybe bad fuel ?


If no fuel stabilizer was added while the bike sat for a year or so.
It is most likely bad fuel with gum deposits.
This can can create some problematic symptoms for you.

It is vital the bad fuel to be cleared from tank/lines and carbs.
You may need the fuel system cleaned as the gum deposits can cause major headaches in the carbs and jets. If the system is not cleaned and even after you get the bike running, you could be miles away and have the fuel fowl jets/injectors, causing shut down.

Check the spark plugs carefully. Oil on the plugs may just need cleaning. Once you get the bike running the oil should burn off if the rings are still in good shape.

Motor needs clean Air, Clean Gas and a hot spark.

Good luck!

Oct 04, 2009 | 1995 Yamaha XV 535 Virago DX

4 Answers

Re: the smell of gas There is no apparent leaking and the smell seems to be just as strong around the engine as by the exhaust.


thats a good question vibrations sometimes cause this if its not back firing its not the mixture buddy where is the tank breather located it could be this

Sep 02, 2009 | 2005 Yamaha Xv 250 Virago S

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1983 Yamaha virago. Lots of problems.


sounds like your filter mate
replace the filter she'll be good as new

Jun 19, 2009 | 1988 Yamaha XV 535 Virago DX

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95 xv750 Virago fuel leak


Probabilly a stuk carburettor float or needle.
Try to solve this problem to gently tap on the carburettor bodies. If this doesn't help you have to clean out the carburettors, and/or replace the float neeldes

Apr 02, 2009 | 1995 Yamaha XV 535 Virago DX

3 Answers

84 kawasaki voyager bike has sat up for 2 years. has low spark & fuel but will not start once in awhile it will pop or back fire.


fuel problem :
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