No photo of this model in the library yet.

Have this bike? Send a photo or the manual's service chart

Hyosung · Shim-adjusted overhead-cam four-stroke twin, wet sump, gearbox shares engine oil, belt drive

ST7 (678 cc)

Library entry covers 2010-2019

29 factory 46 guideline

Published source

Hyosung 2010 ST7 service manual, periodic maintenance chart p.2-1 (ManualsLib viewer p.19)

Factory service manual. Covers Hyosung 2010 ST7 service manual (ManualsLib title); later years not compared.

75 items for a 2012 model, grouped by interval the way a factory chart is laid out.

How this bike is built (what the schedule is based on)

Engine cycle: Four-stroke
Engine lubrication: Wet sump (oil in crankcase)
Oil filtration: Replaceable cartridge or spin-on filter
Valve gear: Overhead cam, shim adjusted (incl. desmo)
Ignition: Electronic (CDI / transistor / ECU)
Charging: Alternator / stator with rectifier
Battery: Wet cell (flooded lead-acid, needs topping up)
Fuel system: Fuel injection
Cooling: Liquid cooled
Primary drive: Gear or chain inside engine, shares engine oil
Gearbox oil: Shares engine oil
Clutch control: Hand lever, cable
Final drive: Toothed belt
Front suspension: Telescopic fork
Rear suspension: Swingarm, twin shocks
Front brake: Disc, hydraulic
Rear brake: Disc, hydraulic
Wheels: Cast / alloy, tubeless
Sidecar: No sidecar

Maintenance schedule

2012 Hyosung ST7 (678 cc)

On the road: every 300 km

1 item

Check engine oil level

Pre-ride / on the road

Guideline

Each fuel stop on old machines. Dry sump: check the tank hot, engine idling or just stopped, per your manual.

On the road: every 500 km

2 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline

On the road: every 800 km

1 item

Check coolant level

Pre-ride / on the road

Guideline

Every 1,000 km

1 item

Drive belt (inspect)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): inspect every 1,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.

Every 1,600 km or 6 months

1 item

Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 3,000 km

1 item

Air cleaner element (clean)

Fuel and air

Factory

Factory: Periodic maintenance chart (p.2-1): clean every 3,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.

Every 5,000 km or 12 months

7 items

Check throttle cable(s) free play and return

Fuel and air

Guideline
Check steering head bearing adjustment

Front end

Guideline
Inspect fork seals, stanchions and fork boots

Front end

Guideline
Check footrests, pegs, rear brake and gear lever pivots

Rear suspension and frame

Guideline
Grease and check center / side stand and springs

Rear suspension and frame

Guideline
Check brake pads and discs

Brakes

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

Every 6,000 km

19 items

Chassis bolts and nuts (tighten)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): tighten at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Cylinder head bolts (tighten)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): tighten at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Engine oil (replace)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): replace at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Engine oil filter (replace)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): replace at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Exhaust pipe bolts and muffler mounting bolts (tighten)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): tighten at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Idle speed (inspect)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): inspect at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Radiator hoses (inspect)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): inspect every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Rear suspension (inspect)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): inspect every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Spark plug (clean)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): clean at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Valve clearance (inspect, adjust)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): inspect at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Fuel hose (inspect)

Fuel and air

Factory

Factory: Periodic maintenance chart (p.2-1): inspect at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Clutch (inspect)

Primary and gearbox

Factory

Factory: Periodic maintenance chart (p.2-1): inspect at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Front forks (inspect)

Front end

Factory

Factory: Periodic maintenance chart (p.2-1): inspect every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Steering (inspect)

Front end

Factory

Factory: Periodic maintenance chart (p.2-1): inspect at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Brake fluid (inspect)

Brakes

Factory

Factory: Periodic maintenance chart (p.2-1): inspect at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Brake hoses (inspect)

Brakes

Factory

Factory: Periodic maintenance chart (p.2-1): inspect at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Brakes (inspect)

Brakes

Factory

Factory: Periodic maintenance chart (p.2-1): inspect at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Tires (inspect)

Wheels and tires

Factory

Factory: Periodic maintenance chart (p.2-1): inspect at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Throttle cable (inspect)

Controls and cables

Factory

Factory: Periodic maintenance chart (p.2-1): inspect at 1,000 km and every 6,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.

Every 6,500 km or 12 months

2 items

Inspect, clean and gap spark plugs

Engine

Guideline
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Guideline

Every 8,000 km or 12 months

3 items

Change engine oil

Engine

Guideline

Pre-1970 machines: many owners run non-detergent or classic-spec oil with no filter, so short intervals matter. Dry sump: drain the tank and the crankcase/sump, flush the tank and clean the feed and return screens.
Replace oil filter

Engine

Guideline
Inspect drive belt, pulleys and tension

Final drive

Guideline

Every 9,500 km or 12 months

7 items

Inspect coolant hoses and clamps

Engine

Guideline
Clean / inspect air filter

Fuel and air

Guideline

Mesh or oiled foam: clean and re-oil. Paper: blow out or replace. Some very early machines have no filter at all.
Check charging voltage and regulator / cut-out

Ignition and electrics

Guideline
Check swingarm bushes for play

Rear suspension and frame

Guideline
Inspect rear shocks for leaks and damping

Rear suspension and frame

Guideline
Lubricate control cables and lever pivots

Controls and cables

Guideline
Lubricate speedometer / tachometer cables, check drive

Controls and cables

Guideline

A dry speedo cable whips the needle and eventually kills the instrument.

Every 12,000 km

3 items

Spark plug (replace)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): replace every 12,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Air cleaner element (replace)

Fuel and air

Factory

Factory: Periodic maintenance chart (p.2-1): replace every 12,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Cylinder head and cylinder (remove carbon)

Fuel and air

Factory

Factory: Periodic maintenance chart (p.2-1): every 12,000 km. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.

Every 16,000 km or 2 years

1 item

Compression test (or leak-down)

Engine

Guideline

Every 19,500 km or 2 years

3 items

Replace air filter element

Fuel and air

Guideline
Synchronize throttle bodies

Fuel and air

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 24,000 km or 3 years

1 item

Change fork oil

Front end

Guideline

Some early telescopic forks are grease filled or use very small oil quantities. Check your manual.

Every 24,000 km or 4 years

1 item

Check valve clearances (shim adjusted)

Engine

Guideline

Every 25,500 km or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 32,000 km or 4 years

2 items

Repack / replace steering head bearings

Front end

Guideline

Many old machines use loose balls in cups and cones. Taper roller conversions are common.
Repack / replace wheel bearings

Wheels and tires

Guideline

Cup-and-cone and taper roller hubs need periodic repacking and adjustment.

Every 38,500 km or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

Every 40,000 km or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 48,500 km or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 80,500 km

1 item

Replace drive belt (wear or damage based)

Final drive

Guideline

Every 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 2 years

6 items

Engine coolant (replace)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): replace every 2 years. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Replace coolant

Engine

Guideline
Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline
Brake fluid (replace)

Brakes

Factory

Factory: Periodic maintenance chart (p.2-1): replace every 2 years. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Replace brake fluid

Brakes

Guideline

Every 4 years

6 items

Radiator hoses (replace)

Engine

Factory

Factory: Periodic maintenance chart (p.2-1): replace every 4 years. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Fuel hose (replace)

Fuel and air

Factory

Factory: Periodic maintenance chart (p.2-1): replace every 4 years. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Replace fuel lines

Fuel and air

Guideline

Old rubber and modern ethanol fuel do not mix well.
Brake hoses (replace)

Brakes

Factory

Factory: Periodic maintenance chart (p.2-1): replace every 4 years. Columns: initial 1,000 km, every 6,000 km, every 12,000 km. Service more often under severe conditions.
Inspect brake hoses; replace old rubber

Brakes

Guideline
Rebuild calipers and master cylinders (seals)

Brakes

Guideline

Every 6 years

1 item

Replace tires on age (regardless of tread)

Wheels and tires

Guideline

Guideline lines: Intervals here are general guidelines for the machine's era and layout, compiled for this app. They are not factory manual figures. Check your workshop manual, and edit any interval in the bike's Schedule tab.