Question about 2002 Yamaha Xv 250 Virago S

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The Bike was sitting for 2 years with gas in it had carb cleaned. Bike starts and idles, but when you go togive it gas it dies. How do I fix?

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Larry Maranto

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Try checking the high speed jet---it may be adjusted improperly

Posted on May 16, 2010

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Yamaha r50 The bike has been left for 6 months was running fine, but has just been sat there ever since. It won't start with the button it trys but it isn't going to. I have managed to bump it had it...
Sounds like the gas went bad and plugged up the idle jets in the carb.

When gas sits too long, it's components start to separate (simplistic explanation), and turns almost into a varnish.

This starts plugging up things, starting with the smallest orifice, which is the idle circuit.

Take carb apart, and clean out idle circuit.
Clean/replace idle jet.

Nov 24, 2013 | Motorcycles

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750 virago 1983. Dying after giving it any throttle
If the bike has been sitting awhile it more than likely needs a carb clean. But don't do a carb clean by putting any kind of cleaner in the gas. It will just plug the jets that much more.

I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_5bac37c3cb991fdb

Nov 12, 2013 | Motorcycles

1 Answer

I just bought a 2004 Honda Shadow 600cc that had been sitting for a while. When I pull the choke the engine will idle but as the choke hits the middle the bike dies. also once its running I have to ride...
Sounds like you have a float sticking in your carburetor, is this a single carb or a duel carb? , also gas can go stale and your bike will run like **** if it also has been subjected to tank condensation and water in your gas, that also maybe your problem, I would drain the tank and drain the carb or carbs, and start off with fresh gas and would use 89 octane or better, also pickup some StarTron Enzyme gas treatment, it will stabilize your gas for up to 2 years, and remove the ethanol from your gas, that is a bad for your motor, try it you will never go without it. Good luck, Rick.

Aug 06, 2011 | 2004 Honda VT 600 C Shadow

1 Answer

Hit the gas and the engine almost dies. Idles and starts fine. Changed the spark plug - no change.
What kind of bike? It sounds like clogged carbs, if pilot jets are plugged from lack of service or sitting for a while then your bike could still start but will fall on its face when opening throttle due to lack of fuel, solution=clean your carbs thoroughly and flush your tank.

Jun 10, 2011 | Yamaha B50 Cross Junior Motorcycles

1 Answer

1986 v65 Mag - will start with full choke only but will die as soon as you back the choke off or crack the throttle. Has fuel pressure and is warmed up. Last year it did the same thing but once it warmed...
You need to disassemble and properly clean the slow circuit/slow jets of your carburetors. Unfortunately, Your carb rack is very delicate. There are some brittle and expensive($40 each) crossover pipes that may crack or leak if the rack is removed for cleaning. I would try lowering my fuel level to just the lower tank and adding half of a cup of "Chevron Techron" to the gas (basically you want one gallon of gas with a shock treatment). Unplug the fuel line from the fuel pump and pour some Techron directly into the carbs. Now start the bike and run it long enough to make sure the treated fuel is in all the carbs. Turn off the bike and let it sit overnight. In the morning drain the carbs, restart the bike , and idle or slow drive till the carbs idle again( usually 5 to 15 minutes). If bike is starting to idle, drive to the gas station , fill the tank and drive the treatment through. With any luck this will solve your problem without an expensive disassembly/cleaning. Use "Chevron Techron", not Chevron fuel treatment with Techron, Techron is more concentrated.

Jul 11, 2010 | Honda V-Twin Magna Motorcycles

2 Answers

Will not idle
Your carbs are dirty and need to be cleaned. A tank of bad gas or old gas can gel up the jets. You buy gas, drive home, and when you get there the bike stops idling. Light gelling can be fixed by draining the carbs (screw on bottom of bowl), pulling the fuel line off the tank, and squirting some motorcycle carburetor cleaner down the fuel line. Plug the fuel line back in turn on the gas and start up the bike. If that doesn't work, using the same procedure buy some Chevron Techron fuels system cleaner, pour directly into the carbs and let sit over night (also drain tank and heavily treat one gallon of gas and put in tank) Fire up bike and let run ,idle, slow drive for 5 to ten minutes. This will usually get cycle idling without disassembling carbs. If it still wont idle you will have to take off the carbs, disassemble and clean blowing through the jets and jet passageways.

May 08, 2010 | 2005 Honda VT 600 C Shadow

1 Answer

The bike will start and run as long as i give it gas...it won't sit there and idle without dying.
hi buddy on carb there 2 screws the big screw you need this is the idle screw you need to turn it in 1/4 of turns with bike started d93bfac.jpg

Sep 02, 2009 | 2005 Honda CRF 150 F

2 Answers

I just purchased a 94 Katana 750cc -- sort of a project bike. The bike has just under 13K miles and the previous owner stated that he had only put about 500 miles on it, in the last 2 years. When I first...
Sounds like it sat allot.. That causes problems with the carbs.. I would say it runs pretty good for sitting so much.. I would suspect the carbs need cleaning.. or maybe rebuilt,, jetted and synced.. Try some carb cleaner and work you way up from there..

Rate well ;o)

Jul 24, 2009 | 1994 Suzuki GSX-R 750 WR

1 Answer

Wont run /idle
i'd start with removing the carbs and giving them a thorough cleaning as when bikes sit for so long, the carbs begin to get gummy/varnished from the old gas.

check for blocked holes in the pilot jet & main jet and look for "hard & dried up" gas in passages. be careful of the float bowl gasket as to not tear it or you will need a replacement.

Mar 03, 2009 | 1999 kawasaki ZR-7

1 Answer

Wont start without choke
I am having a similiar problem. bmw r 1100 s will only start with full choke and will die if I cut off choke or give it any throttle. This is my first bike and it has been sitting in a garage for 2 years. I took out the carbs, cleaned them and rebuilt them. I didn't find any residual in the carbs and they were very clean. Today, I was able to get the bike running and took it down the neighborhood but after the bike warms up it idles at 6K! Man... If I can't find any answers from this forum, I will probably drop it off at the motorcycle shop just down the hill from me. Any suggestions anyone? I think I will try to drain the fuel and give it new gas. But still....

Nov 20, 2008 | 2003 BMW R 1100 S Boxercup Prep

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2002 Xv 250 Virago S

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Yamaha r50 The bike has been left for 6 months was running fine, but has just been sat there ever since. It won't start with the button it trys but it isn't going to. I have managed to bump it had it...

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