Outboard · 4 Stroke EFI · serial 1R281445 and up
FourStroke 8 HP service and maintenance
The Mercury maintenance schedule, the steps and parts of every procedure, exploded catalog drawings, official Mercury videos and the owner's manual. Source: Mercury operation and maintenance manual 8M0235576.
Showroom page: price, specifications, documents →
Step narratives, plan names and glossary definitions come from the Merkür Deniz workshop records and are in Turkish for now; intervals, step counts, parts lists, prices and capacities read the same in any language.
- Power
- 8 HP
- Engine oil
- 800 ml
- Gearcase
- 320 ml
- Catalog
- 90-8M0223221
Maintenance schedule
4 procedures by engine hours and calendar
First service
3 steps · 2 parts · 1 h
Steps and parts →100hours / yearAnnual service
11 steps (5 dealer) · 7 parts · 1.5 h
Steps and parts →300hours / 3 yearsMajor service
9 steps (7 dealer) · 6 parts · 2.5 h
Steps and parts →SeasonendWinterization and storage
6 steps · 5 parts · 1.5 h
1 video
Steps and parts →Interval rule: hours or calendar, whichever comes first. In salt water, anodes, spark plugs and lubrication points are checked more often.
Every trip
Checks the boat owner does
Pre-use check · 6 checks
Before every trip, a few minutes. Done with the engine off.
- Lanyard stop kontrolü
- Transom kelepçe cıvataları (manuel tilt)
- Direksiyon kontrolü
- Pervane hasar kontrolü
- Yakıt hattı kaçak kontrolü
- Motor yağı seviyesi
After-use care · 2 checks
After every trip; always after salt, dirty or muddy water.
- Dış yıkama
- Soğutma sistemi flush (tuzlu/kirli/çamurlu su)
Know your engine · parts catalog
Exploded drawings of the systems maintenance touches
Drawings from Mercury parts catalog 90-8M0223221; live price and stock on every part.
Videos
Mercury's official walkthroughs for this engine
Capacities and oils
Values specific to this model
| System | Capacity | Oil / spec | Mercury product |
|---|---|---|---|
| Engine oil (with filter) | 800 ml | SAE 10W-30 FC-W (mineral/syn blend) | 92 8M0206950 (1 L) |
| Gearcase (lower unit) oil · Standart 2.08:1 | 320 ml | Premium/HP Gear Lube | 92 8M0219575 (1 L) |
Source: 8M0235576/8M0237504, 8M0235576 and the accessory catalog quick-reference table; confirmed by the Merkür Deniz service team.
This page is information compiled from the Mercury manual; steps marked as dealer work require Mercury dealer training and tools. During the warranty period, maintenance must be recorded at an authorized dealer.