Ninja 250/300 (All Model years)
hey guys i just picked up a 88 500 EX on june 1st so to start out it was backfiring at around 5 0r 6 tho when i shifted when i got it so i took apart carbs cleaned them out and also cleaned jets and changed spark plugs so when i was testin to see if i fixed the backfire problem i got it right up...