If your motorcycle was ridden significantly low on oil and you are experiencing issues such as oil on the spark plugs, backfiring, and difficulty in keeping the engine running, there could be several potential causes and complications. Here are a few possibilities:
Internal Engine Damage: Riding a motorcycle with low oil levels can result in severe engine damage, including worn-out piston rings, damaged cylinder walls, or valve seal leaks. These issues can cause oil to leak into the combustion chamber, leading to oil fouling on the spark plugs and improper combustion, which can cause backfiring and difficulty in keeping the engine running.
Fouled Spark Plugs: If oil is present on the spark plugs, it can interfere with their ability to produce a strong spark, resulting in misfires and backfiring. Fouled spark plugs may need to be replaced to ensure proper ignition and combustion.
Carburetor Issues: Low oil levels and potential engine damage can also affect the performance of the carburetors, leading to fuel mixture imbalances, poor fuel delivery, and increased likelihood of backfiring. It's possible that the carburetors may need to be cleaned, adjusted, or rebuilt to restore proper fuel flow and mixture.
Given the severity of the issues you're experiencing, it is strongly recommended to have a qualified mechanic inspect your motorcycle as soon as possible. They can diagnose the specific problems, assess the extent of the damage, and recommend the necessary repairs or replacements.
Continuing to ride the motorcycle in this condition can worsen the damage and potentially lead to more severe engine problems. Addressing the issues promptly with professional assistance will increase the likelihood of restoring your motorcycle's performance and preventing further damage.