Covers all 2.5 - 250 HP 2-Stroke and 4-Stroke Johnson engines. Only Seloc manuals include Skill level Ratings (1 - 4 wrenches) based upon the degree of difficulty along with Special Tool icons where a OEM or electronic testing tool is required to perform the specified procedure. * The most comprehensive information available. * Simple-to-follow illustrated procedures. * Hundreds of drawings, exploding views, photos, and tables. * Troubleshooting, specifications, and wiring diagrams.