Ambassadeur 650(91-0 Plus)

Technical Service Protocol: Abu Garcia Ambassadeur 650 (Foot Number 91-0 Plus)

The Abu Garcia Ambassadeur 650, identified by foot number 91-0 Plus, is a standout model from the early 1990s. The "Plus" designation in this era often referred to the inclusion of specialized features like the instant anti-reverse or upgraded bearing systems designed for the American and European markets. As a wider-frame reel compared to the 5000 series, the 650 is built for higher line capacity and heavier resistance. To maintain the structural integrity and smooth power delivery of this vintage machine, a methodical lubrication strategy is essential.

To optimize the 91-0 Plus, we recommend Deuthlon Reel Gear Grease for the heavy-duty drive train and Deuthlon Reel Power Oil for the fast-moving oscillation components. These lubricants provide a modern performance edge to this 1990s classic.

Phase 1: Breakdown and Solvent Cleaning

Start by removing the handle assembly and the side plate thumb screws. The 91-0 Plus features a robust internal frame and a synchronized levelwind system. Carefully extract the spool and the drive gear assembly.

Thoroughly degrease all metal components using a specialized reel cleaner. It is vital to remove the "sludge" that forms when older mineral-based greases break down over decades. Use a soft brush to ensure the teeth of the brass main gear and the grooves of the worm shaft are stripped to the bare metal. Ensure all parts are completely dry before re-lubricating to allow for maximum surface bonding.

Phase 2: High-Torque Gear Lubrication

The main gear and pinion in the 650 model are designed to handle significant torque. These components require a lubricant with high film strength to prevent metal-on-metal fatigue.

• Main Gear and Pinion: Apply Deuthlon Reel Gear Grease to the teeth of the main gear. Use a precision brush to paint a thin, uniform coating onto the gear face. This grease is formulated with high-load additives that cushion the gear mesh, resulting in a silent and powerful retrieve even under the pressure of a large fish. Lightly coat the pinion gear and the clutch yoke to ensure a smooth transition between free-spool and gear engagement.

Phase 3: Optimizing the Levelwind and Idler Gears

Since the Ambassadeur 650 utilizes a synchronized levelwind—where the line guide moves during the cast—the efficiency of the oscillation system is the primary factor in casting distance.

• Worm Shaft and Pawl: Apply Deuthlon Reel Power Oil directly to the grooves of the worm gear. Avoid using grease here, as it can trap dust and create a "sluggish" movement that significantly shortens your cast. The Power Oil allows the line guide to oscillate rapidly with minimal friction.

• Idler Gears: These gears bridge the energy from the spinning spool to the levelwind assembly. Apply Deuthlon Reel Power Oil to the idler gear posts. The thin viscosity of this oil ensures the gear train remains "light," allowing the spool to spin freely without being bogged down by internal mechanical drag.

Phase 4: Spool Shaft and Friction Management

Consistency in your cast is achieved by maintaining the spool shaft ends and the tension system with a high-speed synthetic oil.

• Spool Shaft: Polish the ends of the stainless steel spool spindle until they are mirror-bright. Apply a single drop of Deuthlon Reel Power Oil to each end of the shaft.

• Tension Shims: Apply a tiny amount of Deuthlon Reel Power Oil to the copper shims inside the cast control caps. This provides a protective hydraulic layer that ensures a smooth, consistent spool speed and prevents the shaft from wearing into the shim during high-speed operation.

Final Assembly and Performance Tuning

Reassemble the side plates, ensuring the brake blocks are seated correctly on their pins. Once the handle is secured, adjust the cast control knob until there is a minute amount of lateral play in the spool. Cycle the handle several times to allow the Deuthlon Reel Gear Grease to seat into the gear teeth.

By using specialized lubricants—grease for the heavy-duty gear teeth and oil for the fast-moving oscillation parts—you ensure your Ambassadeur 650 remains a silent, powerful, and long-casting tool. This maintenance routine preserves the 91-0 Plus's internal integrity while providing a level of smoothness that modern anglers demand.