Inside of the chicken with the salt and pepper. Truss the chicken. Push the spit through it starting at the breast end. Dry it thoroughly, rub with butter and sprinkle with salt.
Secure the strips of blanched bacon over the breast and thighs with string. Because of the bacon, no basting is necessary until the very end. Use moderate heat and rotisserie for about 1 h 30 min to 1 h 45 min.
Remove the bacon 15 minutes before the end, and baste with the pan drippings until the chicken is browned and done.