What length throttle and shift cables does a 1988 Grady-White 22-foot walkaround need?

A 1988 Grady-White 22-foot walkaround's hull length alone cannot tell you the correct throttle and shift cable lengths; check the existing cable markings, then confirm the route and engine connections. A single engine with mechanical controls needs two cables, with lengths and end fittings that match the installation aboard.

Check the existing cables

Start at the engine end and wipe the outer cable jackets with a damp cloth. Look for a printed or embossed manufacturer's name, part number and length. Check behind the helm too, as markings near the engine often wear away.

A readable length marking is the best starting point if the existing cables follow a sensible route and allow unrestricted engine movement. Photograph the complete code on each cable; do not assume the throttle and shift cables are identical.

• Single mechanical engine: two cables, one throttle and one shift.
• Twin mechanical engines: four cables, with each engine's route checked separately.
• Repowered boat: identify the current engine and control box; the hull year does not establish which cables fit.

Do not buy 22-foot cables simply because the boat is a 22-footer. Helm position, the route beneath the cockpit, engine mounting and later alterations determine the length required.

Measure the cable route

If the existing installation works properly, removing and measuring each old cable is usually the clearest way to establish its replacement length. Follow the replacement manufacturer's measuring instructions. Measuring only the outer sheath can give the wrong ordering length because cable end arrangements differ.

If the old cables are missing, incorrectly routed or too short, measure the intended installation:

1. Run a flexible tape or cord from the control box along the actual cable route to the engine's cable attachment area.
2. Include the turns through the helm, side passage and transom opening. A straight measurement across the cockpit misses these distances.
3. For an outboard, allow a broad service loop to accommodate full steering movement and tilt without pulling the cables tight.
4. Apply the chosen cable manufacturer's allowance for bends and engine movement, then round up to the next available standard length.

For example, if the measurement totals 19 feet 4 inches after adding the required allowances, choose a 20-foot cable if that range comes in one-foot increments. This is a measuring example, not a confirmed specification for your Grady-White.