TESTING AND SERVICING
Other than the PCV system, the only IMCO component which requires service at a regular interval is the carbon canister within the Evaporative Emission Control system. The carbon should be replaced every two years or 24,000 miles, whichever occurs first.
Beside the carburetor idle speed and mixture adjustments, which are discussed in Engine Performance And Tune-up , none of the IMCO components require any adjustments.
All IMCO components may be simply replaced. No specific procedures for removal and installation are necessary.