Where does the exhaust go in a virago?
As an interesting note, in the stock system (for all Viragos) both headers dump their exhaust into a common box where it gets mixed together before finding its way out of– which exhaust pipe? Who knows. The system is designed to give the best performance/back pressure with the stock carb jetting.
What causes the engine to backfire on a virago?
This, in turn allows some unburnt fuel to get into the exhaust pipes. Then when the engine does fire, these unburnt gasses are ignited in the exhaust pipe, causing the backfire. Newer Virago carbs have an ‘enricher circuit’ which cuts in on deceleration to help this problem.
How much does a Hitachi Virago pipe cost?
Stock Hitachi jets (110-134 in 2 step increments) and Mikuni jets ( most in 2.5 steps from 110 to 150) are available from K&L Supply. I don’t know the cost of these jets. Dynojet will sell you jets for $2 each.
How can I Check my Virago aftermarket pipes?
Go to the carb articles to learn what this is, where your pilot circuit adjustment screws are, how they are uncovered, etc. The pilot circuits should be readjusted (usually richened up a little) to meet the new conditions. I would recommend you at least check these circuits with any pipes you install.
As an interesting note, in the stock system (for all Viragos) both headers dump their exhaust into a common box where it gets mixed together before finding its way out of– which exhaust pipe? Who knows. The system is designed to give the best performance/back pressure with the stock carb jetting.
What causes a Yamaha Virago engine to backfire?
What happens is that the mixture leans out enough to where is fails to ignite consistenty. This, in turn allows some unburnt fuel to get into the exhaust pipes. Then when the engine does fire, these unburnt gasses are ignited in the exhaust pipe, causing the backfire.
Can you put Virago pipes on a 750?
Since the mounting dimensions for 750’s and 1100’s are exactly the same, I suspect that most companies design for the 1100 in terms of sound, back pressure, etc. and then sell the same pipe for the 750. For my money, putting pipes on a 535 or 250 won’t start to get you that cool sound.
Go to the carb articles to learn what this is, where your pilot circuit adjustment screws are, how they are uncovered, etc. The pilot circuits should be readjusted (usually richened up a little) to meet the new conditions. I would recommend you at least check these circuits with any pipes you install.