1984 Honda VT 500 C Shadow "engine loses power bogs down" Questions

...power was running fine them it just bog down dies when I stop lots for popping noise heavy smell of fuel from the exhaust BillFurr, Could be a couple of things. One, could be the carbs allowing too ...

...engine begins to lose power and bogs down, and back fires around 60 mph... even with the throttle fully open. (A mechanic friend of mine recently put in a fuel filter and carb rebuild kit.) After it ...

...engine seems to be bogged down, then last night , when travelling down hill the bike would just lose all power. I hit the brake & ignition & the bike restarted. I'm using km/hr , so it would be ...

...power also it may be piston rings worn (2) if White smoke is jetting out when reving engine, depending on the fact that we are talking about 2 stroke engines then check 2 stroke oil mix is measured ...