Parsun 4-Stroke 9.8HP Outboard Engine Parts

(3 products)

This page supports Parsun 4-Stroke 9.8HP outboard engines. Use it to find compatible parts and key service information, including maintenance tips, commonly replaced items, and quick troubleshooting guidance. You can also browse our main Parsun collection from here, and at the bottom of this page you’ll find an easy way to start browsing parts for this engine. On the collection page, use the Filter & Sort controls to narrow by horsepower, year range, and part category/section.

Browse All Parsun Parts

How to Identify Your 9.8HP Model

Nameplate/serial plate: Typically found on the transom bracket or clamp bracket (often starboard side). Note the model and serial number exactly.
Model code & suffix: A code like F9.8 followed by letters/numbers indicating shaft length (S=15", L=20"), start type (M=manual, E=electric), and control style (tiller vs. remote).
Platform distinctions: This 4-stroke twin-cylinder is carbureted. Many parts are shared with similar 8 hp Parsun models, but jetting and certain components can differ—confirm by serial.
Year/build info: A production label or sticker near the nameplate may indicate a build year or series. Use this along with the serial number to verify parts.

Engine Overview

Parsun 9.8HP 4‑Stroke Platform

Feature	Description
Configuration	Inline 2‑cylinder, SOHC, carbureted 4‑stroke; manual or electric start; tiller or remote control options.
Common Models	Examples include F9.8S (15" shaft), F9.8L (20" shaft), with M/E for start type and R designations for remote control on some variants.
Advantages	Lightweight portable power, quiet operation, good fuel economy, straightforward maintenance.
Notes	Many service parts are shared with the Parsun F8 family; verify by serial number, shaft length, and start/control configuration to ensure compatibility.

Routine Maintenance & Service Parts

Intervals below are general guidelines for typical recreational use. Always follow your official Parsun service manual and local operating conditions.

Item	Interval*	Remarks	Parts Link
Engine oil + filter	Every 100 hrs or annually	Use FC‑W marine oil; verify viscosity in manual (often 10W‑30). Warm engine before draining.	Oil Filters
Gear oil (lower unit)	Every 100 hrs or annually	Use marine gear lube; inspect for water/emulsion and metal on magnets. Replace seals if contamination found.	Lower Unit Seal Kits
Spark plugs	Inspect 100 hrs; replace 200 hrs or as needed	Check gap and color; replace if fouled, worn, or cracked.	Spark Plugs
Fuel filter (inline)	Every 100 hrs or annually	Inspect for debris/water. Replace more often with ethanol fuels or dirty tanks.	Fuel Filters
Water pump impeller/kit	Every 2 seasons or 200 hrs	Replace sooner if weak tell‑tale, overheat alarm, or sand/silt use.	Water Pump Impeller Rebuild Kits
Anodes (zincs)	Inspect quarterly; replace when 50% consumed	Match alloy to water type (salt/brackish/fresh). Clean contact surfaces.	Anodes
Propeller & cotter/shear pin	Check every trip	Remove prop periodically to clear line; inspect blades and hub for damage.	Propellers
Battery/charging checks (E‑start)	Monthly	Load‑test battery; verify charge voltage at idle and cruise.	Electrical Items

Frequently Used Parts Categories

Routine Service – Service & Maintenance Kits
Cooling System – Water Pump Impeller Rebuild Kits
Fuel System – Fuel Filters
Ignition / Electrical – Electrical Items
Propulsion – Propellers
Corrosion Protection – Anodes
Induction & Tuning – Carburetor

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak tell‑tale or overheat alarm	Inspect intake screens for debris; verify strong water stream; check thermostat function	Water pump kit, intake screen, thermostat
Poor acceleration or power loss	Confirm fresh fuel; check inline filter; inspect spark plugs; verify prop pitch/condition	Fuel filter, spark plugs, carburetor repair kit, propeller
Hard starting or rough idle	Prime fuel bulb and check connectors; set choke/enrichment properly; clean idle circuits	Spark plugs, carburetor kit, fuel line/connector
Gearcase noise or metal in gear oil	Verify oil level and condition; check for water intrusion; inspect prop shaft for fishing line	Lower unit seal kit, prop shaft seals, gear lube
Excessive vibration	Check prop for bent/damaged blades; inspect mounting hardware and bushings	Propeller, prop hub, bushings

FAQs

Are parts interchangeable between F8 and F9.8 models?

Many service items and components are shared across the F8/F9.8 platform, but certain pieces (carburetor jetting, gear ratios, electrical details) can vary by year or sub‑model. Confirm with the exact model/serial before ordering.

When should I replace the water pump impeller?

As a rule of thumb, replace the impeller every two seasons or about 200 hours, and sooner if the tell‑tale weakens, the engine overheats, or the motor sees sandy/silty use.

How often should the gear oil be changed?

Change lower unit gear oil every 100 hours or annually. Inspect the drained oil for water (milky/emulsified) and metal, and address any seal issues promptly.

What information do you need to confirm part compatibility?

Please provide the full model designation, serial number, shaft length (S/L), start type (manual/electric), and control type (tiller/remote). A clear photo of the nameplate also helps ensure accuracy.

Ready to find what you need? Browse our main Parsun collection by horsepower, year, and model to locate compatible parts.

Browse All Parsun Parts

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.