Titan part 779-089 is a throttle lever control assembly used to regulate engine speed on compatible PowrLiner stripers. This complete assembly includes the lever, cable, spring, and mounting hardware. A worn or sticky throttle control can cause erratic engine performance or unsafe speed changes. Replacing the assembly restores smooth, precise throttle operation.
| Part Number | 779-089 |
|---|---|
| Part Description | Throttle Lever Control Assembly |
| Brand | Titan |
| Fits |
PowrLiner 8900, 8900 XLT, 8900 XLT SP, 6950, 6900 XLT, 6900 XLT SP, 4950, 4900, 4900 XLT |
| Condition | New |
The Titan 779-089 Throttle Lever Control Assembly is a complete replacement kit for the engine throttle control on compatible PowrLiner line striping machines. It allows the operator to smoothly increase or decrease engine speed for consistent spray output and safe machine movement.
Over time, throttle cables can stretch, levers can crack, springs can lose tension, and pivot points can corrode. These issues cause sticky, loose, or non‑responsive throttle control, which can lead to dangerous speed surges or stalling. Replacing the entire assembly restores factory feel and reliable engine response.
| Engine speed regulation | Adjusts throttle plate position from idle to full throttle |
|---|---|
| Return‑to‑idle | Spring‑loaded lever returns engine to idle when released |
| Operator comfort | Ergonomic lever with smooth, progressive feel |
| Safety | Prevents unintended high‑speed operation |
| Sticky / binding lever | Lever does not move freely throughout its range |
|---|---|
| No return to idle | Engine stays at high speed when lever is released |
| Cracked lever or broken spring | Visible damage to plastic lever or missing return spring |
| Frayed or stretched cable | Cable housing damage or excessive slack |
Titan part 779-089 is a direct replacement throttle lever control assembly for the following PowrLiner models. Always verify with your machine’s parts diagram for the correct revision.
| Model | Component |
|---|---|
| PowrLiner 8900 | Throttle lever control assembly |
| PowrLiner 8900 XLT | Throttle lever control assembly |
| PowrLiner 8900 XLT SP | Throttle lever control assembly |
| PowrLiner 6950 | Throttle lever control assembly |
| PowrLiner 6900 XLT | Throttle lever control assembly |
| PowrLiner 6900 XLT SP | Throttle lever control assembly |
| PowrLiner 4950 | Throttle lever control assembly |
| PowrLiner 4900 | Throttle lever control assembly |
| PowrLiner 4900 XLT | Throttle lever control assembly |
When replacing the throttle control assembly, inspect these related components for optimal performance.
Bent or worn guides can cause cable binding and erratic throttle.
Check for bent linkage or missing return springs on the engine side.
Loose or stripped mounting points can affect lever feel and alignment.
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