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Evinrude 25-35HP 2-Stroke Outboard Engine Parts

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This page is for Evinrude 25–35HP 2‑Stroke outboard engines. Use it to find compatible parts and service information, including maintenance tips, common replacement items, and troubleshooting guidance. You can also browse our main Evinrude collection. Scroll to the bottom of this page to start browsing parts for this engine, and on the collection page use the Filter & Sort controls to narrow results by horsepower, year range, and part category/section.

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How to Identify Your 25–35HP Model

  • Locate the nameplate on the transom bracket or swivel bracket. It shows the model code and often the serial number.
  • Model codes include letters for features such as starter type (electric vs. rope), shaft length (S = 15 in, L = 20 in), and control type (tiller vs. remote). Example: E25KLEDC.
  • These 2‑Stroke engines are commonly inline‑3, carbureted platforms; verify whether yours is a 25, 30, or 35 HP variant as carburetor and jetting may differ.
  • If equipped with oil injection, note the presence of an oil tank and lines; premix models will not have an injection system.

Platform Overview

Inline‑3 Carbureted 2‑Stroke (25/30/35 HP)

Feature Description
Configuration Inline‑3, carbureted 2‑Stroke. Rope or electric start, tiller or remote controls, short (15 in) or long (20 in) shaft.
Common Models Examples include E25 and E35 variants such as E25KLEDC (1996). Similar families span 25/30/35 HP with different carburetor calibrations and features.
Advantages Lightweight, simple maintenance, strong low‑end torque for small boats, widely supported parts availability.
Notes Many ignition, cooling, and gearcase parts interchange between 25–35 HP within this platform. Match carburetor, jetting, and linkages to the exact model code; year and shaft length can affect part selection.

Routine Maintenance & Service Parts

Intervals below are general guidelines for typical recreational use. Always consult and follow your engine’s official service manual for exact procedures and specifications.

Item Interval* Remarks Parts Link
Gear oil (lower unit) Every 100 hrs or annually Inspect for water intrusion (milky oil) and metal. Replace seals if contamination is found. Johnson/Evinrude/OMC Lower Unit Seal Kits
Spark plugs Inspect every 50 hrs; replace 100 hrs/annual Check gap and condition; replace if fouled or worn. Spark plug
Inline fuel filter Every 100 hrs or each season Replace sooner if fuel is stale or contaminated; verify primer bulb condition. Fuel Filters
Water pump impeller/kit Every 2 seasons or 100 hrs Essential for cooling; replace more often in sandy/silty water. Johnson/Evinrude/OMC Water Pump Repair Kits
Anodes (zinc/aluminum/magnesium) Inspect 3–6 months; replace when 50% worn Choose alloy for your water (salt/brackish/fresh). Maintain good electrical bonding. Johnson/Evinrude/OMC Anodes
Propeller & hub inspection Every 50–100 hrs Remove prop to check for line on the shaft; inspect blades and hub for damage or slip. Johnson/Evinrude/OMC Propellers
2‑Stroke oiling (premix or oil injection) Every outing (confirm mix) / 100 hrs (inspect lines) Premix engines typically run 50:1. If equipped with injection, inspect oil lines, clamps, and tank filter; service per manual. Johnson/Evinrude/OMC Hoses
Thermostat Every 2–3 years Test opening temperature; replace if sticking or corroded to maintain proper operating temp. Johnson/Evinrude/OMC Outboard Parts

Frequently Used Parts Categories

Common Symptoms & Quick Checks

Symptom Check First Related Parts
Weak tell‑tale stream or overheat alarm Inspect intake screen for debris, check impeller condition, verify thermostat operation, and ensure cooling passages are clear. Water pump kit, thermostat, intake screen/grommets
Poor acceleration or power loss Confirm fresh fuel and proper premix, replace fuel filter, check prop for damage/slip, clean carb jets and synchronize linkages. Fuel filter, propeller/hub, carb rebuild parts, spark plugs
Hard starting or rough idle Prime system, verify choke/primer operation, inspect spark plugs and ignition leads, and check for air leaks at fuel lines. Spark plugs, fuel lines/hoses, inline filter, primer bulb
Excessive smoke (2‑Stroke) Verify premix ratio, ensure choke isn’t stuck on, inspect oil injection (if equipped) for misadjustment or leaks. Spark plugs, fuel hoses, oil lines, choke/primer components
Gearcase noise or metal in gear oil Drain and inspect gear oil, check for fishing line on prop shaft, verify shift adjustment and prop hub integrity. Lower unit seal kit, prop shaft seals, propeller/hub components

FAQs

Are parts interchangeable between 25, 30, and 35 HP models?

Many components in the cooling, ignition, and gearcase systems interchange within the inline‑3 platform, but carburetor parts, jetting, and some exhaust or intake pieces are horsepower‑specific. Always confirm by model code and year before ordering.

When should I replace the water pump impeller?

For typical use, replace the impeller every 2 seasons or about 100 hours, and sooner if operating in sandy or silty water or if the tell‑tale stream weakens.

How often should I change lower unit gear oil?

Change gear oil at least annually or every 100 hours. Inspect for water intrusion or metal; if present, service seals before running again.

What information helps confirm part compatibility?

Provide the complete model code (e.g., including shaft length and starter/control letters), serial number if available, horsepower, approximate year, and whether the engine has oil injection or is premix.

Ready to find the right parts? Browse the main Evinrude collection and use Filter & Sort to narrow by horsepower, year, and model.

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If you’re unsure about your model, send us a clear photo of the nameplate and the part you need—we’ll help verify compatibility.
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