I have a 96 Yamaha virago xv1100. Starts up with choke. But doesn't want to stay running. The bike runs great on the highway but then loses power and shuts down almost like it's not getting any gas. I change the fuel filter. Any suggestion? @
Make sure the fuel system is properly vented (gas cap, carburetors) Make sure the petcock will freely flow fuel, If this is a vacuum system, make sure you do not have any vacuum leaks!! The carbs sound like they need a good professional clearing, setting, and synchronizing!!
SOURCE: Gas in oil - Yamaha Virago 250 2006
your carb. is flooding the cylinder when its not running.it will cause ring damage.turn your gas pitcock off when not in use.get carb cleaned &adjusted.
SOURCE: Yamaha V-Star 1100 backfires and will not run without choke on
Here are two solutions for you:
A - Take the carberator off and soak it in some good quality carb cleaner for about 1/2 an hour. That should take care of any residue in the carbs.
B - Alternatively (and for the less technical minded) there is a great product called Sea Foam. Try to find it at your local CSK auto/NAPA/Wal-Mart. Pour a small amount (maybe 1/4 ounce) into each cylinder chamber (take out the spark plugs), try to pour a small amount into the carbs (a turkey baster works great for this), and pour the rest into the gas tank. Let it sit for 5-10 minutes, then start it up. *NOTE - the bike will start VERY hard at first until it burns through what's in the cylinders. ALSO the fumes will be EXTREMELY strong and suffocating - make sure you do this OUTDOORS preferably, or at least in a VERY well ventilated area.
Good luck - I know how frustrating these things can be! :)
P.S. - I am a proud owner of a V-Star 1300 - great bikes! :)
SOURCE: 97 Virago 1100 will start and idle. No highway speed.
sounds like you have trash in your carbs u need to take bottoms off and run a piece of a wire wheel through the jets
SOURCE: Won't idle without choke
The pilot jet controls the air/gas fuel mix at idle . If the jet gets plugged up not enough gas gets to the emgine at idle. You will need to remove the carbs and float bowls and clean them, paying special attention to the pilot valve. Count the number of turns to remove the pilot screw and replace the same number of turns then turn counter clockwise 1/2 turn.
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SOURCE: Yamaha 535 stalling out and losing power after running for a bit
Sounds like a fueling problem either water in the carbs or the fuel flow from the tap is insufficient. If there is a vacuum pipe it may have been dislodged or holed.
Ride Safe
Bike-Doc
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