Yamaha DE-DHT Sterndrive Service Manual 6U41 6U51 – 2006 Workshop PDF

Description

Yamaha DE-DHT Sterndrive Service Manual — Complete Workshop Reference

This Yamaha DE-DHT Sterndrive Service Manual is the definitive workshop reference for the DE-DHT-C (6U41) and DE-DHT-D (6U51) sterndrive units. Published by Yamaha Motor Co., Ltd. under document number 6U5-28197-ZJ-11, this 388-page manual provides step-by-step procedures for disassembly, repair, assembly, and inspection of every major sterndrive system. Whether you are servicing the hydraulic clutch, adjusting shim packs in the upper or lower unit housing, or diagnosing a power trim fault, this Yamaha stern drive service manual delivers the exact procedures, specifications, and exploded diagrams required to complete the job correctly.

File Details

• Manual type: Stern Drive Service Manual
• Brand: Yamaha
• Models covered: DE-DHT-C (6U41), DE-DHT-D (6U51), INT-HD (6U00)
• Document number: 6U5-28197-ZJ-11
• Edition: 1st Edition, August 2006
• Language: English
• Page count: 388
• File format: PDF
• Publisher: Yamaha Motor Co., Ltd.

Chapters Covered

• Chapter 1 — General Information: Outdrive identification, safety precautions, pre-delivery inspection, propellers, propeller selection
• Chapter 2 — Specifications: General specifications, maintenance specifications, hydraulic clutch system, power trim system, tightening torque, special tools, steering cable requirements, wiring diagram, drawings and dimensions
• Chapter 3 — Periodic Inspection and Adjustment: Maintenance intervals, outdrive oil level and change, oil strainer, water intake, anode inspection, power trim/tilt fluid level, air bleeding, power steering fluid, engine alignment, continuity wire, bellows and hose inspection, propeller shaft and nut, drive shaft universal joint, intermediate unit lubrication, shift cable installation and adjustment, trim sender and trim limit switch adjustment, oil pump output pressure
• Chapter 4 — Upper Unit Housing: Drive unit removal and installation, shim selection, gear 2 assembly, F-gear and R-gear shim adjustment, drive shaft pre-load, backlash check, clutch assembly, selector valve housing, final assembly
• Chapter 5 — 6U41 Lower Unit Housing: Shim selection, stamping locations, F-gear shim adjustment, pinion gear and drive shaft shim adjustment, drive shaft pre-load, R-gear shim adjustment, inner propeller shaft shim adjustment, propeller shaft pre-load, backlash check, disassembly, bearing carrier, final assembly
• Chapter 6 — 6U51 Lower Unit Housing: Full lower unit housing service covering 6U51-specific shim selection, disassembly, inspection, assembly, and pre-load checks
• Chapter 7 — Intermediate Assembly: Gimbal housing, gimbal ring and swivel bracket, transom plate, drive shift cable, bellows, exhaust collector, gimbal housing and transom plate removal, disassembly, inspection, repair, installation
• Chapter 8 — Steering System: Power steering system, power steering cylinder removal, disassembly, inspection, assembly, installation, hydraulic hoses, steering cable
• Chapter 9 — Power Trim System: Power trim pump removal, disassembly, inspection, assembly, motor assembly, trim cylinder removal, disassembly, inspection, assembly
• Chapter 10 — Troubleshooting: Performance, hydraulic clutch system, drive unit overheating, abnormal noise and vibration, power steering system, power trim and tilt system

Each chapter opens with exploded diagrams that show component relationships and correct assembly order, followed by numbered step-by-step procedures. Warnings, cautions, and notes are clearly distinguished throughout, and special tool part numbers are called out at every stage where they are required. The manual also includes a comprehensive tightening torque table, shim selection charts with calculation formulas, and detailed measurement procedures for pre-load and backlash adjustment.

What This Yamaha Sterndrive Manual Enables You to Do

This Yamaha DE-DHT sterndrive service manual gives you the complete factory procedure set for maintaining and repairing the DE-DHT-C (6U41) and DE-DHT-D (6U51) sterndrive units. You can remove and reinstall the drive unit, disassemble and reassemble the upper unit housing, service the hydraulic clutch assembly, adjust F-gear and R-gear backlash, set drive shaft and propeller shaft pre-load, replace bearings and oil seals, inspect and repair the gimbal housing, service the power steering cylinder, rebuild the power trim pump, and diagnose faults across the entire sterndrive system. Every procedure includes the specified torque values, service limits, shim selection formulas, and special tool references you need to complete the work accurately.

Using the correct Yamaha sterndrive service procedures matters because these units rely on precise shim selection, correct pre-load, and exact backlash settings. The manual provides the measurement techniques and calculation formulas for shim selection (T1, T2a, T2b, T3, T4, T5, T6a, T6b, T7) along with the stamped housing values needed to determine the correct shim thickness. Following the manual eliminates guesswork, prevents damage from incorrect assembly, and ensures the sterndrive performs reliably after repair.

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Instant PDF Delivery

This Yamaha DE-DHT Sterndrive Service Manual is delivered as an instant PDF download after payment. There is no shipping, no waiting, and no physical media to handle. The PDF works on any device — computer, tablet, or smartphone — and every page is printable so you can take the relevant sections directly to your workspace. Whether you are a professional marine mechanic or a boat owner performing your own maintenance, this Yamaha sterndrive service manual gives you the complete factory information in a convenient, portable format.