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ATK · Shim-adjusted overhead-cam four-stroke, wet sump, gearbox shares engine oil, chain drive

GT 650

Library entry covers 2012-2016

29 factory 32 guideline

Published source

Hyosung GT650 Owner's Manual, Periodic Maintenance chart printed p.64 (viewer p.65)

Factory owner's handbook. Covers Hyosung GT650 owner's manual (ManualsLib 810064), year not printed on the chart page; the ATK GT 650 is a rebadged Hyosung GT650 (canadamotoguide.com, 2011-02-16).

61 items for a 2016 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
Chain
Front suspension
Telescopic fork
Rear suspension
Swingarm, single shock / cantilever
Front brake
Disc, hydraulic
Rear brake
Disc, hydraulic
Wheels
Cast / alloy, tubeless
Sidecar
No sidecar
Maintenance schedule

2016 ATK GT 650

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

On the road: every 1,000 km

2 items
  • Check chain slack and rear wheel alignment
    Pre-ride / on the road
    Guideline
  • Lubricate drive chain
    Pre-ride / on the road
    Factory

    Manual: Drive chain (clean and lubricate). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): clean and lubricate every 1,000 km

Every 3,000 km

1 item
  • Clean / inspect air filter
    Fuel and air
    Factory

    Manual: Air cleaner element (clean). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): clean every 3,000 km

Every 5,000 km or 12 months

6 items
  • Clean drive chain thoroughly (remove and soak, re-lube)
    Final drive
    Guideline

    Non O-ring chains on old machines: remove, clean, soak in hot chain grease or lube, refit with the master link clip closed end leading.

  • Inspect chain and sprockets for wear (measure stretch)
    Final drive
    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 wheel bearings for play
    Wheels and tires
    Guideline

Every 6,000 km

20 items
  • Change engine oil
    Engine
    Factory

    Manual: Engine oil (replace). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): replace at 1,000 km first, then every 6,000 km

  • Chassis nuts and bolts (tighten)
    Engine
    Factory

    Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): tighten at 1,000 km first, then every 6,000 km

  • Check and adjust valve clearances
    Engine
    Factory

    Manual: Valve clearance adjust (inspect). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect at 1,000 km first, then every 6,000 km

  • Cylinder head bolt (tighten)
    Engine
    Factory

    Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): tighten at 1,000 km first, then every 6,000 km

  • Exhaust pipe nuts and muffler mounting bolts (tighten)
    Engine
    Factory

    Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): tighten at 1,000 km first, then every 6,000 km

  • General lubrication (lubricate)
    Engine
    Factory

    Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): lubricate at 1,000 km first, then every 6,000 km; lubrication points p.62-63

  • Idle speed (inspect)
    Engine
    Factory

    Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect at 1,000 km first, then every 6,000 km

  • Inspect coolant hoses and clamps
    Engine
    Factory

    Manual: Radiator hose (inspect). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect every 6,000 km

  • Inspect, clean and gap spark plugs
    Engine
    Factory

    Manual: Spark plug (clean). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): clean at 1,000 km first, then every 6,000 km

  • Replace oil filter
    Engine
    Factory

    Manual: Engine oil filter (replace). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): replace at 1,000 km first, then every 6,000 km

  • Check throttle cable(s) free play and return
    Fuel and air
    Factory

    Manual: Throttle cable (inspect). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect at 1,000 km first, then every 6,000 km

  • Replace fuel lines
    Fuel and air
    Factory

    Manual: Fuel hose (inspect). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect at 1,000 km first, then every 6,000 km

  • Adjust clutch free play, lubricate cable and lever pivot
    Primary and gearbox
    Factory

    Manual: Clutch (inspect). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect at 1,000 km first, then every 6,000 km

  • Check steering head bearing adjustment
    Front end
    Factory

    Manual: Steering (inspect). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect at 1,000 km first, then every 6,000 km

  • Front forks (inspect)
    Front end
    Factory

    Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect every 6,000 km

  • Inspect rear shocks for leaks and damping
    Rear suspension and frame
    Factory

    Manual: Rear shock absorber (inspect). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect every 6,000 km

  • Brake fluid (inspect)
    Brakes
    Factory

    Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect at 1,000 km first, then every 6,000 km

  • Check brake pads and discs
    Brakes
    Factory

    Manual: Brake (inspect). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect at 1,000 km first, then every 6,000 km

  • Inspect brake hoses; replace old rubber
    Brakes
    Factory

    Manual: Brake hose (inspect). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect at 1,000 km first, then every 6,000 km

  • Inspect tire tread, sidewalls and date codes
    Wheels and tires
    Factory

    Manual: Tire (inspect). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): inspect at 1,000 km first, then every 6,000 km

Every 9,500 km or 12 months

4 items
  • Check charging voltage and regulator / cut-out
    Ignition and electrics
    Guideline
  • Check swingarm bushes for play
    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

2 items
  • Replace spark plugs
    Engine
    Factory

    Manual: Spark plug (replace). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): replace every 12,000 km

  • Replace air filter element
    Fuel and air
    Factory

    Manual: Air cleaner element (replace). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): replace every 12,000 km

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
  • Synchronize throttle bodies
    Fuel and air
    Guideline
  • Clean and grease rear suspension linkage
    Rear suspension and frame
    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 29,000 km

1 item
  • Replace chain and sprockets (wear based)
    Final drive
    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 6 months

1 item
  • Clean battery terminals, check charge and strap
    Ignition and electrics
    Guideline

Every 2 years

4 items
  • Replace coolant
    Engine
    Factory

    Manual: Engine coolant (replace). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): replace every 2 years

  • Inspect wiring, bullet connectors and ground points
    Ignition and electrics
    Guideline
  • Inspect frame, welds and lugs for cracks
    Rear suspension and frame
    Guideline
  • Replace brake fluid
    Brakes
    Factory

    Manual: Brake fluid (replace). Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): replace every 2 years

Every 4 years

4 items
  • Radiator hose (replace)
    Engine
    Factory

    Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): replace every 4 years

  • Fuel hose (replace)
    Fuel and air
    Factory

    Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): replace every 4 years

  • Brake hose (replace)
    Brakes
    Factory

    Factory: Maintenance chart p.64 (columns first 1,000 km, every 6,000 km, every 12,000 km; star items for dealer or qualified mechanic): replace every 4 years

  • 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.

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Add the bike in the app and this chart loads itself, ready to log against and edit.

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Other 2016 ATK models

All 2016 ATK
2014-2016
GT 250
Guideline
2014-2016
GV 250
Guideline
2014-2016
GV 650
Guideline