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Cruiser style starts here.
Getting into the fun of V-twin cruising has never been more affordable than with this nimble, confidence-inspiring and economical cruiser. FeaturesKey Features: Light weight and a seat just 27 inches from the pavement make the Virago 250 a great trainer as well as a great choice for riders who appreciate the fun that comes in small packages. Dual exhausts, plenty of quality chrome and typical Yamaha attention to detail; this is one sharp little cruiser. Front disc brake provides highly controllable stopping power. Engine:  2007 Yamaha Virago 250 Chassis/Suspension: Additional Features: ---- SPECS 2007 Yamaha Virago 250 Engine Chassis Dimensions Other 2 comments: Yamaha Virago 250 XVrider (6682) - Posted on 06.6.2008 I have been riding the Virago 250 for many years and have found that with a couple of mod’s that it does an effective job at keeping up with the larger bikes.
No 1 : Replace output sprocket with a one tooth larger and rear sprocket with three teeth smaller, thus making 55 mph the upshift speed at which to shift into fifth gear.
No 2 : Drill four holes in the back of the
baffle located in the resessed area of the inside of the lower exhaust (use a 7/64 drill bit and a flood lamp to see way up in there. Do not modify the upper exhaust pipe because that would ruin everything with overheating problems!!! Now look under
the bike where the battery overflow tube hangs down and remove the 10mm bolt sticking out of the snake exhaust and drill a 1/64 hole all the way through the center of the bolt.
and reinstall with the washer.
Next , drop the fuel valve off the left side of the gas tank and remove the bolt that fastens the gas tank to the frame(under the front of the seat) and prop up the back of the tank with a small block of wood , Make sure gas tank is below reserve fuel level and take carburetor bowl off (do not remove carburetor !) only the float bowl. Unscrew the brass jet with a hand held impact wrench with a large flat blade screwdriver bit inserted in the end. Unscrew the original jet(in plain sight) and reinstall with a 122.5 for northern longitudes or a 125 jet for southern living. You now have a bike that you can cruise with any of the big dogs. If you vary away from these instructions you will develop dangerous engine heat and failure.
Follow these instructions and she will run cool and reliable with power to spare.
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Posted on
07.21.2008 @ 17:34
As far as millage goes , I was getting 67mpg.... and after the mods I am currently getting 59-60 An engine does four things... When you open up the blow, it is going to cause the engine to "lean out" because of the ease at which the engine is able to evacuate, It will cause overheating... if the larger jet isn’t installed. The trick is to drill the four holes at the lower exhaust pipe beyond the visible end plate . The exhaust tube in the center is about 7" inches long and I drilled four holes in the baffle at the FAR END of the exhaust tube with a really bright light you can see the baffle at the far end through the length of the tube, as if you are looking through a gun barrel into the breach block. This method keeps the visible end plate intact , inspectable and provides back pressure for the modification that you have performed(seven inches further inside). As a result, the sound of the engine becomes louder but at the same time sounds mellow and throaty verses ratty and annoying, You also have an added layer of protection from going overboard with the drilling because you still have the end plate to help contain some of the free flowing gasses. I have drilled the four holes up to 1/8 diameter before going overboard with power loss and excessive engine heat. When you do take the dive, and re-jet your carb , this re-balances the "lean out" syndrome encountered from the free flowing exhaust and restores normal operating temperatures and maintains engine longevity.The power gain is fairly impressive. With the higher gears, the engine at 60mph went from screaming to a well adjusted "purrring" along side with the big bikes. The new ratio did not subtract from the available power and the xv bike in my opinion is a more safe machine because of it.
Signed Doug Miller, in extreme North Texas