Yamaha 35HP 2-Stroke Outboard Engine Parts

(13 products)

This page is dedicated to Yamaha 2‑Stroke 35HP outboard engines. Use it to find compatible parts and practical service guidance, including maintenance tips, common replacement items, and troubleshooting checks. You can also browse our main Yamaha catalog for broader coverage. Scroll to the bottom to start browsing parts for this engine, and remember you can use the Filter & Sort controls on the collection page to narrow results by horsepower, year range, and part category.

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How to Identify Your 35HP Model

Locate the nameplate/serial sticker on the transom bracket or the swivel bracket. It lists the model code and serial number.
Decode the model suffix: common letters indicate shaft length (S = 15", L = 20"), start type (E = electric), and controls (R = remote, M = tiller). Match these when selecting parts.
Confirm it’s a 2‑stroke model (premix or oil‑injected). Many 2‑stroke 35HP models share components with 30/40HP families; verify via the exact model code.
If unsure, note the full model code, serial, and any tag color/year code before ordering.

Platform Overview

Yamaha 35HP 2‑Stroke (Typical Platform)

Feature	Description
Configuration	Carbureted 2‑stroke, typically inline‑2; some year/market variants share architecture with 30/40HP families.
Common Models	35HP 2‑stroke variants with suffixes for shaft length, start, and controls (e.g., S/L, E for electric start, R/M for remote/tiller).
Advantages	Lightweight, simple maintenance, strong low‑to‑mid rpm torque for small boats.
Notes	Many routine service parts (plugs, impeller, anodes, gearcase seals) are shared across adjacent HP models of the same era. Always confirm fitment by model code and serial.

Routine Maintenance & Service Parts

Intervals below are general guidelines; always follow your official Yamaha service manual for procedures and model‑specific schedules.

Item	Interval*	Remarks	Parts Link
Gear oil (lower unit)	Every 100 hours or annually	Inspect magnet for metal; milky oil indicates water intrusion (check seals).	Yamaha Outboard Parts
Spark plugs	Inspect every 50 hours; replace 100 hours or annually	Use the plug type and gap specified for your exact model/year.	Spark Plugs
Inline fuel filter / water separator (if equipped)	Inspect 50 hours; replace 100 hours or annually	Replace sooner if contaminated fuel or storage issues are suspected.	Fuel Filters
Water pump impeller / kit	Every 2 seasons or 200 hours	Essential for proper cooling; replace sooner if weak telltale or overheat alarms.	Yamaha Water Pump Repair Kits
Anodes (internal & external)	Inspect every 50 hours; replace when 50% depleted	Use correct material for your waters (aluminum, zinc, or magnesium).	Yamaha Anodes
Thermostat	Inspect annually; replace as needed	Stuck thermostats can cause cold‑running or overheat issues.	Yamaha Outboard Parts
Oil injection system (if equipped) / Premix	Inspect 100 hours or annually	Verify tank filter and lines on oil‑injected models; for premix models, use the ratio specified by Yamaha.	Hoses
Lower unit seals (as needed)	On condition	Replace if gear oil shows water intrusion or leaks after prop shaft fishing line damage.	Yamaha Lower Unit Seal Kits

Frequently Used Parts Categories

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

Common Symptoms & Quick Checks

Symptom	Check First	Related Parts
Weak telltale / overheat alarm	Inspect intake screens for debris, verify impeller condition, confirm thermostat operation.	Water pump kit, thermostat, intake screen components
Poor acceleration / power loss	Check prop for damage, plugs for fouling, fuel quality, and carb jets for varnish; ensure no air leaks on fuel lines.	Propeller, spark plugs, fuel filter, carb gasket/jet set, hoses
Hard starting / rough idle	Prime bulb firmness, choke/enricher function, idle mixture settings, compression test if needed.	Spark plugs, fuel pump diaphragm, carb kits, hoses
Excessive smoke (2‑stroke)	Confirm premix ratio or oil injection setting; avoid extended cold idling.	Spark plugs, oil injection line/filter, fuel
Gearcase noise / metal in oil	Drain oil and inspect; look for water intrusion (milky oil) and fishing line on prop shaft seal.	Gear oil, lower unit seal kit, bearings

FAQs

Are parts interchangeable between different years or adjacent HP models?

Many 35HP 2‑stroke components are shared with 30/40HP models from the same era, but interchange varies by model code and suffix. Always verify with the full model and serial to ensure proper fit.

When should I replace the water pump impeller?

As a preventive measure, replace the impeller every 2 seasons or about 200 hours—sooner if the telltale is weak, you’ve run through sand or weeds, or you see overheat warnings.

How often should I change the lower unit gear oil?

Change gear oil every 100 hours or annually. Inspect for metal on the drain plug magnet and for milky appearance indicating water intrusion, which may require new seals.

What information helps confirm part compatibility?

Provide the complete model code, serial number, shaft length, start type (manual/electric), and whether it’s premix or oil‑injected. Photos of the nameplate and the part needing replacement are also helpful.

Ready to find parts by horsepower, year, and model? Browse our main Yamaha catalog and use the filters to quickly narrow down compatible components for your 35HP 2‑stroke.

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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 before you buy.