{"product_id":"onan-k-series-generator-sets-engines-workshop-repair-service-manual-981-0504","title":"Onan K-Series Generator sets \u0026 Engines Workshop Repair Service Manual (981-0504)","description":"\u003c!-- START SHOPIFY PRODUCT LISTING TEMPLATE --\u003e\n\u003cdiv class=\"shopify-manual-description\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; max-width: 900px; margin: 0 auto; color: #1e293b; line-height: 1.6;\"\u003e\n\n    \u003c!-- High Impact Callout Banner --\u003e\n    \u003cdiv style=\"background: linear-gradient(135deg, #065f46 0%, #047857 100%); color: #ffffff; padding: 24px; border-radius: 12px; margin-bottom: 24px; box-shadow: 0 4px 12px rgba(4, 120, 87, 0.15); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;\"\u003e\n        \u003cdiv\u003e\n            \u003cspan style=\"background-color: #34d399; color: #064e3b; font-size: 11px; font-weight: 800; text-transform: uppercase; padding: 4px 10px; border-radius: 20px; letter-spacing: 0.5px;\"\u003eInstant PDF Download\u003c\/span\u003e\n            \u003ch2 style=\"margin: 8px 0 4px 0; font-size: 22px; font-weight: 800; color: #ffffff;\"\u003eOnan K-Series Generator Workshop Manual\u003c\/h2\u003e\n            \u003cp style=\"margin: 0; font-size: 14px; color: #a7f3d0;\"\u003eOfficial Factory Service \u0026amp; Repair Publication #981-0504\u003c\/p\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background-color: rgba(255, 255, 255, 0.15); border: 1px solid rgba(255, 255, 255, 0.3); padding: 10px 18px; border-radius: 8px; text-align: center;\"\u003e\n            \u003cspan style=\"display: block; font-size: 12px; color: #ecfdf5; font-weight: 500;\"\u003eFormat\u003c\/span\u003e\n            \u003cstrong style=\"font-size: 16px; color: #ffffff;\"\u003eDigital PDF (107 Pages)\u003c\/strong\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Product Description Overview --\u003e\n    \u003cdiv style=\"margin-bottom: 28px; font-size: 15px; color: #334155;\"\u003e\n        \u003cp style=\"margin-top: 0;\"\u003e\n            Keep your Onan portable generator set running at peak performance with this official \u003cstrong\u003eOnan K-Series Genset Workshop Manual (Form 981-0504)\u003c\/strong\u003e. Whether you are conducting routine maintenance, troubleshooting electrical voltage output failures, rebuilding the carburetor, or performing a full engine overhaul, this comprehensive manual contains all factory specifications, detailed schematics, and step-by-step diagnostic workflows.\n        \u003c\/p\u003e\n        \u003cp style=\"margin-bottom: 0;\"\u003e\n            \u003cstrong\u003eInstant Delivery:\u003c\/strong\u003e Upon completing checkout, you will immediately receive access to download the full, high-resolution PDF file to your computer, tablet, or mobile device.\n        \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Models Covered Grid Card --\u003e\n    \u003cdiv style=\"border: 1px solid #e2e8f0; border-radius: 12px; overflow: hidden; margin-bottom: 28px; background-color: #ffffff;\"\u003e\n        \u003cdiv style=\"background-color: #f8fafc; border-bottom: 1px solid #e2e8f0; padding: 14px 20px; font-weight: 700; font-size: 16px; color: #0f172a;\"\u003e\n            ⚙️ Models Covered in this Workshop Manual\n        \u003c\/div\u003e\n        \u003cdiv style=\"padding: 20px; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px;\"\u003e\n            \u003cdiv style=\"background-color: #f1f5f9; padding: 16px; border-radius: 8px;\"\u003e\n                \u003ch4 style=\"margin: 0 0 8px 0; color: #0369a1; font-size: 14px; font-weight: 700;\"\u003eGenerator Models (Single \u0026amp; Dual Voltage)\u003c\/h4\u003e\n                \u003cul style=\"margin: 0; padding-left: 18px; font-size: 13px; color: #334155; leading: 1.7;\"\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eK400 \/ K450\u003c\/strong\u003e (0.40 - 0.45 kVA)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eK800 \/ K1000\u003c\/strong\u003e (0.80 - 1.0 kVA)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eK1200 \/ K1400\u003c\/strong\u003e (1.2 - 1.4 kVA)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eK1800 \/ K2100\u003c\/strong\u003e (1.8 - 2.1 kVA)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eK2500\u003c\/strong\u003e (2.5 kVA)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eK3000 \/ K3050\u003c\/strong\u003e (3.0 - 3.05 kVA)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eK3500\u003c\/strong\u003e (3.5 kVA Dual 1 \u0026amp; Dual 2)\u003c\/li\u003e\n                \u003c\/ul\u003e\n            \u003c\/div\u003e\n            \u003cdiv style=\"background-color: #f1f5f9; padding: 16px; border-radius: 8px;\"\u003e\n                \u003ch4 style=\"margin: 0 0 8px 0; color: #0369a1; font-size: 14px; font-weight: 700;\"\u003eEngine Models (Air-Cooled 4-Cycle)\u003c\/h4\u003e\n                \u003cul style=\"margin: 0; padding-left: 18px; font-size: 13px; color: #334155; leading: 1.7;\"\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eGN550 \/ GN550-DG-A3\u003c\/strong\u003e (55cc \/ 3.36 cu.in.)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eGS130 \/ GS130-DG-A-2-3\u003c\/strong\u003e (130cc \/ 7.93 cu.in.)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eGN1850 \/ GN1850-DG-A3\u003c\/strong\u003e (183cc \/ 11.17 cu.in.)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eGN2500 \/ GN2500-DG-A3\u003c\/strong\u003e (252cc \/ 15.38 cu.in.)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eGS280 \/ GS280-DG-A3\u003c\/strong\u003e (276cc \/ 16.84 cu.in.)\u003c\/li\u003e\n                \u003c\/ul\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Feature Highlights --\u003e\n    \u003cdiv style=\"margin-bottom: 28px;\"\u003e\n        \u003ch3 style=\"font-size: 18px; font-weight: 700; color: #0f172a; margin-bottom: 14px;\"\u003eKey Topics \u0026amp; Technical Systems Included:\u003c\/h3\u003e\n        \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px;\"\u003e\n            \u003cdiv style=\"border: 1px solid #e2e8f0; padding: 16px; border-radius: 8px; background-color: #ffffff;\"\u003e\n                \u003cdiv style=\"font-weight: 700; color: #047857; margin-bottom: 4px;\"\u003e🔌 Generator \u0026amp; Electrical Diagnostics\u003c\/div\u003e\n                \u003cp style=\"margin: 0; font-size: 13px; color: #64748b;\"\u003eComplete testing for AVR (Automatic Voltage Regulator), main\/sub coil resistance, diodes, carbon brushes, and slip ring clearances.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv style=\"border: 1px solid #e2e8f0; padding: 16px; border-radius: 8px; background-color: #ffffff;\"\u003e\n                \u003cdiv style=\"font-weight: 700; color: #047857; margin-bottom: 4px;\"\u003e⚡ Advanced Ignition System Analysis\u003c\/div\u003e\n                \u003cp style=\"margin: 0; font-size: 13px; color: #64748b;\"\u003eDetailed breakdowns for CDI (Capacitor Discharge Ignition) and Transistor Ignition (T.I.) magnetos, SCR rectifiers, and spark advancing timing.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv style=\"border: 1px solid #e2e8f0; padding: 16px; border-radius: 8px; background-color: #ffffff;\"\u003e\n                \u003cdiv style=\"font-weight: 700; color: #047857; margin-bottom: 4px;\"\u003e🛢️ Oil Watch \u0026amp; Auto Idler Systems\u003c\/div\u003e\n                \u003cp style=\"margin: 0; font-size: 13px; color: #64748b;\"\u003eWorking mechanics, wiring, and testing procedures for both float and oscillating-type low-oil protection and solenoid-driven slow-down systems.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv style=\"border: 1px solid #e2e8f0; padding: 16px; border-radius: 8px; background-color: #ffffff;\"\u003e\n                \u003cdiv style=\"font-weight: 700; color: #047857; margin-bottom: 4px;\"\u003e🔧 Complete Engine Overhaul Specs\u003c\/div\u003e\n                \u003cp style=\"margin: 0; font-size: 13px; color: #64748b;\"\u003eStep-by-step disassembly, torque specifications (kgf-cm, N-m, ft-lbs), cylinder bore wear limits, piston ring gaps, and valve seating tolerances.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Wiring Schematics Highlight Section --\u003e\n    \u003cdiv style=\"background-color: #f8fafc; border-left: 4px solid #047857; padding: 18px; border-radius: 0 8px 8px 0; margin-bottom: 28px;\"\u003e\n        \u003ch4 style=\"margin: 0 0 6px 0; font-size: 15px; color: #0f172a; font-weight: 700;\"\u003e⚡ Full Connection \u0026amp; Wiring Schematics Included\u003c\/h4\u003e\n        \u003cp style=\"margin: 0; font-size: 13px; color: #475569;\"\u003e\n            Includes color-coded wiring diagrams for control boxes, circuit breakers, switches, receptacles, and AVR harness connections for K1400, K2100, K3000, and K3500 models.\n        \u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- PDF Specifications Summary Table --\u003e\n    \u003cdiv style=\"border: 1px solid #e2e8f0; border-radius: 8px; padding: 20px; background-color: #ffffff; margin-bottom: 28px;\"\u003e\n        \u003ch3 style=\"margin: 0 0 14px 0; font-size: 16px; font-weight: 700; color: #0f172a;\"\u003eManual Details \u0026amp; File Specs\u003c\/h3\u003e\n        \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; color: #334155;\"\u003e\n            \u003ctbody\u003e\n                \u003ctr style=\"border-bottom: 1px solid #f1f5f9;\"\u003e\n                    \u003ctd style=\"padding: 8px 0; font-weight: 600; width: 40%;\"\u003eDocument Title:\u003c\/td\u003e\n                    \u003ctd style=\"padding: 8px 0;\"\u003eOnan K-Series Generator Sets Workshop Manual\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"border-bottom: 1px solid #f1f5f9;\"\u003e\n                    \u003ctd style=\"padding: 8px 0; font-weight: 600;\"\u003eForm \/ Part Number:\u003c\/td\u003e\n                    \u003ctd style=\"padding: 8px 0;\"\u003e981-0504 (10-1995 Reprint Edition)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"border-bottom: 1px solid #f1f5f9;\"\u003e\n                    \u003ctd style=\"padding: 8px 0; font-weight: 600;\"\u003eTotal Pages:\u003c\/td\u003e\n                    \u003ctd style=\"padding: 8px 0;\"\u003e107 High-Quality Pages\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"border-bottom: 1px solid #f1f5f9;\"\u003e\n                    \u003ctd style=\"padding: 8px 0; font-weight: 600;\"\u003eFile Format:\u003c\/td\u003e\n                    \u003ctd style=\"padding: 8px 0;\"\u003eStandard PDF (Searchable \u0026amp; Fully Printable)\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd style=\"padding: 8px 0; font-weight: 600;\"\u003eDelivery Method:\u003c\/td\u003e\n                    \u003ctd style=\"padding: 8px 0; color: #047857; font-weight: bold;\"\u003eInstant Automatic Download After Checkout\u003c\/td\u003e\n                \u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Instant Download Guarantee Box --\u003e\n    \u003cdiv style=\"text-align: center; background-color: #ecfdf5; border: 1px border #a7f3d0; padding: 20px; border-radius: 10px;\"\u003e\n        \u003ch4 style=\"margin: 0 0 6px 0; color: #065f46; font-size: 16px; font-weight: 700;\"\u003e📥 Ready to Repair Your Generator?\u003c\/h4\u003e\n        \u003cp style=\"margin: 0; font-size: 13px; color: #047857;\"\u003eClick \"Add to Cart\" or \"Buy It Now\" to get immediate instant access to the manual!\u003c\/p\u003e\n    \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c!-- END SHOPIFY PRODUCT LISTING TEMPLATE --\u003e","brand":"Digital Resource Hub","offers":[{"title":"Default Title","offer_id":49545627173120,"sku":null,"price":19.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0814\/7337\/2416\/files\/WORKSHOPREPAIRSERVICEMANUAL_6.png?v=1787670327","url":"https:\/\/digital-resource-hub.myshopify.com\/products\/onan-k-series-generator-sets-engines-workshop-repair-service-manual-981-0504","provider":"Digital Resource Hub","version":"1.0","type":"link"}