Description
2003–2008 Suzuki LT-Z400 / LTZ400 Repair Service Manual (PDF Download)
This is the full service manual for the 2003–2008 Suzuki LT-Z400/LTZ400, covering every year before Suzuki switched the Z400 to fuel injection in 2009. All six model years in this range — 2003 through 2008 — share the same 398cc, liquid-cooled, DOHC single-cylinder engine with a carbureted 36mm Mikuni fuel system, so the carb rebuild and jetting procedures in this manual apply consistently across the whole range, with no mid-range EFI split to account for.
The PDF is 349 pages, bookmarked by chapter so you can jump straight to engine, chassis, electrical, or fuel-system sections. It covers full teardown and reassembly procedures, a wiring diagram, and troubleshooting guides. Also included is a separate parts-fiche PDF with exploded component diagrams and OEM part numbers, bundled with the manual in one ZIP file (23.04 MB).
Delivered as an instant digital download — no shipping, no physical book. Works on Windows and Mac. Print any page or zoom into diagrams as needed.
Frequently Asked Questions
What years and models does this manual cover?
2003 through 2008 Suzuki LT-Z400 and LTZ400 QuadSport ATVs — the carbureted generation, before Suzuki introduced fuel injection on the 2009 model.
What format do I get, and how do I access it?
A ZIP file (23.04 MB) containing the main PDF manual and a separate parts-fiche PDF. You get instant download access after checkout — nothing is shipped.
Does it include wiring diagrams and a parts catalog?
Yes. The manual includes a wiring diagram schematic, plus a bonus PDF with exploded parts diagrams and part numbers.
Will this cover carburetor rebuilds?
Yes. It covers the carbureted fuel system used across all 2003–2008 model years, including teardown and reassembly.







