Selva 2-Stroke 8HP Outboard Marine Engine Parts

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This page is dedicated to Selva 2‑Stroke 8HP outboard engines. Use it to find compatible parts, routine service guidance, maintenance tips, common replacement items, and troubleshooting help. You can also browse the main Selva parts collection from here. Scroll down to the bottom of the page to start browsing parts for this engine, and remember that on the collection page you can use the Filter & Sort controls to narrow results by horsepower, year range, and part category.

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How to Identify Your 8HP Model

Nameplate location: Look on the transom clamp bracket for the model/serial plate. Record the exact model code and serial number for parts matching.
Decoding the suffix: Letters often indicate shaft length (S = short, L = long), start type (M = manual, E = electric), and control (tiller vs. remote). This helps confirm propeller, control, and harness compatibility.
Platform distinctions: Selva 8HP 2‑strokes are typically inline‑2, carbureted engines. Some families (e.g., Izmir vs. Naxos) differ in displacement and shared parts. Verify by model code or displacement in your manual.
Check the gearcase: Note gear ratio and lower unit style; small differences can affect propeller and seal-kit selection.

Engine Overview

Selva 8HP 2‑Stroke (Inline‑2, carbureted)

Feature	Description
Configuration	Inline‑2, carbureted 2‑stroke with CDI ignition; manual or electric start depending on model; portable external fuel tank.
Common Models	Examples include Izmir 8 and Naxos 8 variants in short (S) and long (L) shaft options. Confirm exact model code and serial number before ordering.
Advantages	Lightweight, simple maintenance, responsive throttle, and easy serviceability for small craft and tenders.
Notes	Use NMMA TC‑W3 two‑stroke oil at the mix ratio specified on your model tag/manual (often 50:1). Lower unit uses GL‑5 80W‑90 gear oil. Many wear parts are shared across 6–10HP siblings, but confirm by model code.

Routine Maintenance & Service Parts

Intervals below are general guidelines for small 2‑stroke outboards. Always follow the procedures and schedules in your official Selva service manual for your exact model.

Item	Interval*	Remarks	Parts Link
Lower unit gear oil	Every 100 hours or annually	Use marine GL‑5 80W‑90; inspect for water or metal fines. Replace seals if contamination is found.	Lower Unit Seal Kits
Spark plugs	Inspect every 50 hours; replace as needed	Check gap and heat range per model; replace if fouled or worn.	Spark Plugs
Inline fuel filter	Inspect every 50 hours; replace 100–200 hours	Replace more frequently if fuel quality is uncertain.	Fuel Filters
Water pump impeller/kit	Every 2 seasons or 200 hours (annually in sandy/silty use)	Restore cooling flow and protect against overheat; replace housing if scored.	Water Pump Impeller Rebuild Kits
Anodes (corrosion protection)	Inspect 50 hours; replace when 50% consumed	Use alloy suited to your water (salt/brackish/fresh). Keep unpainted.	Anodes
Propeller & hardware	Inspect each outing; remove and grease shaft seasonally	Check for dings, bent blades, or fishing line at seals; verify pitch for your load.	Propellers
Fuel line connectors/primer bulb	Inspect each season; replace if leaking or soft	Air leaks cause hard starting and stalling; ensure tight fittings.	Fuel Connectors
Lower unit seals (if water in oil)	As needed	Milky oil indicates water intrusion; pressure/vacuum test gearcase.	Lower Unit Seal Kits

*Intervals may vary by model, environment, and usage. Follow your Selva manual if it specifies different timing.

Frequently Used Parts Categories

Routine Service — Service & Maintenance Kits
Cooling System — Water Pump Impeller Kits
Fuel System — Fuel Filters
Ignition / Electrical — Electrical Items
Propulsion — Propellers
Gearcase & Seals — Lower Unit Seal Kits
Corrosion Protection — Anodes

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak tell‑tale or overheat alarm	Inspect intake screens for blockage; verify impeller condition; ensure tell‑tale is clear.	Water pump impeller kit; intake screen; Water Pump Kits
Poor acceleration / power loss	Check fuel quality and filter; inspect spark plugs; verify prop not damaged or over‑pitched.	Fuel filter; spark plugs; propeller
Hard starting / rough idle	Prime bulb firm; check for air leaks at connectors; set choke correctly; inspect plugs and idle mixture.	fuel connectors; fuel filter; spark plugs
Excessive smoke (2‑stroke)	Confirm correct oil mix (commonly 50:1 unless specified otherwise); avoid prolonged choke; use fresh fuel.	Plugs; fuel filter
Gearcase noise / metal in oil	Check oil for milkiness/metal; inspect propshaft for fishing line; pressure/vac test gearcase.	lower unit seal kit; propeller; bearings

FAQs

Are parts interchangeable between different years or Selva 8HP platforms?

Many wear items are shared across similar 2‑stroke 6–10HP Selva engines, but changes in displacement, shaft length, and start/control options can affect part fit. Always confirm by model code and serial number.

When should the impeller be replaced?

Replace the impeller every 2 seasons or ~200 hours, or annually if you run in sandy/silty or shallow water. Any overheat event or weak tell‑tale warrants immediate inspection.

How often should I change gear oil?

At least once per season or every 100 hours. Inspect for water (milky oil) or metal fines; if present, service seals and retest the gearcase.

What information helps confirm part compatibility?

Provide the exact model code, serial number, shaft length (S/L), start type (manual/electric), control type (tiller/remote), and clear photos of the nameplate and the part you’re replacing.

Ready to find parts? Browse the main Selva selection by horsepower, year, and part category to match your 8HP 2‑stroke.

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