This is my first time posting on here holler at me if I do something wrong, i maintain a fleet of forklifts of many different models and brands I am currently working on a Toyota 8 series 4 cylinder l.p. it is backfiring and blowing the air filter and cover clear off, it runs great at ideal and before load
is applied, right before it backfires you can hear it big down and a bit and then it throws a fit of backfires and even cuts off. Any help would be appreciated