Can a Yamaha Virago Backfire at high altitude?
I SAY VIRTUALLY ELIMINATED AS I WILL STILL BACKFIRE WHEN QUICKLY BACKING OFF THE GAS IF I’M AT HIGH ALTITUDE. MOUNTAIN ROADS ABOVE 7,000 FEET ARE STILL A PROBLEM BUT THIS IS UNDER-STANDABLE WITH THE THINNER AIR AT ALTITUDE. Since the publishing of this recommended fix, several other members have asked for solutions to backfiring problems.
Can a virago backfire on a commercial toilet?
I own a 1983 virago xv920k with which I have had the decel backfire problem. The mixture control valve works exactly like a flush valve for a commercial toilet! Intake manifold vacuum acts on a diaphragm which in turn actuates a plunger allowing air to be inducted into the front #2 cylinder.
What to do about compression backfiring on a Yamaha Virago?
IN REGARD TO THE COMPRESSION BACKFIRING PROBLEM WHEN DE-ACCELERATING, I THINK I MAY HAVE A CURE. A COMBINATION OF INSTALLING HIGH QUALITY SPARK PLUGS (SUCH AS SPLIT FIRE) GAPPED METICULOUSLY, CLEANING THE PLUGS AND CHECKING THE GAP EVERY 1,000 MILES, AND USING AN OCTANE IMPROVER IN THE GAS HAS VIRTUALLY ELIMINATED MY PROBLEM.
Where is the starter located on a 84 Virago?
It came to the U.S. on the ’84 XV 1000 (981 cc) shaft drive cruiser model. When we refer to the “starter” we are talking about the unit that sits in the front of the motor at the base of the front cylinder. This unit is actually made up of two separate components, the start motor, and the reduction gear assembly. See the attached diagram.
I SAY VIRTUALLY ELIMINATED AS I WILL STILL BACKFIRE WHEN QUICKLY BACKING OFF THE GAS IF I’M AT HIGH ALTITUDE. MOUNTAIN ROADS ABOVE 7,000 FEET ARE STILL A PROBLEM BUT THIS IS UNDER-STANDABLE WITH THE THINNER AIR AT ALTITUDE. Since the publishing of this recommended fix, several other members have asked for solutions to backfiring problems.
I own a 1983 virago xv920k with which I have had the decel backfire problem. The mixture control valve works exactly like a flush valve for a commercial toilet! Intake manifold vacuum acts on a diaphragm which in turn actuates a plunger allowing air to be inducted into the front #2 cylinder.
IN REGARD TO THE COMPRESSION BACKFIRING PROBLEM WHEN DE-ACCELERATING, I THINK I MAY HAVE A CURE. A COMBINATION OF INSTALLING HIGH QUALITY SPARK PLUGS (SUCH AS SPLIT FIRE) GAPPED METICULOUSLY, CLEANING THE PLUGS AND CHECKING THE GAP EVERY 1,000 MILES, AND USING AN OCTANE IMPROVER IN THE GAS HAS VIRTUALLY ELIMINATED MY PROBLEM.