Arysal

TORS is unplugged, parking brake is off push started bike succesfully, have opened and cleaned carb, slow full leak on alternating carbs (will try stuck fix), engine can't get to power band on either carb, still misfiring on left carb. Have tried additional spark with plug out of socket still misfiring on left side, both exhausts hot when bike riding have checked air filters which are clean, tried running bike without air filters same issue occurs. Will change the fuel and oil tonight to see the issue. Thanks for the quick replies so far!

Ok some history, this bike ran very well before this and no modifications have happened before the event. I have left my bike in storage over the summer 1-2 months and now it does not want to go fast. After trying to take it out for a spin, again not going beyond 15 km/h, the next day i noticed all the petrol had leaked out of the engine, fuel gauge was not closed though, but never did this before. I have also noticed that only my left exhaust pipe is miss firing when ideling and moving. I have clearned the carboraters, check the fuel line to the carbs, check the sparks and swapped them round plus used sparks from my mates bike still same affect. there is petrol in the tank with 2 stoke mix. I have a banshee 350 2 stroke, any help will be appreciated.