Oil quality is a major contributor to your engine's performance and life. Always select good quality engine oil. Suzuki recommends the use of suzuki performance 4 motor oil or equivalent engine oil. Use sf/sg or sh/ sj with jaso ma in api (american petroleum institute) classification.

Api: american petroleum institute jaso: japanese automobile standards organization
Sae engine 011 viscosity
Suzuki recommends the use of sae 1 ow-40 engine oil. If sae 10w-40 engine oil is not available, select an alternative according to the following chart.

Jaso T903
The jaso t903 standard is an index to select engine oils for 4- stroke motorcycle and atv engines. Motorcycle and atv engines lubricate clutch and transmission gears with engine oil. Jaso t903 specifies performance requ irements for motorcycle and atv clutches and transmission.
There are two classes, ma and mb. The oil container has following classification for confirming the standard.

Energy conserving
Suzuki does not recommend the use of "energy conserving" oi ls. Some engine oils which is api sh or greater has "energy conserving" indication in api classification doughnut mark.
These oils can affect engine life and clutch performance.
Fuel
Engine coolant solutionFront fork parts inspection
Refer to “front fork disassembly and assembly” .
Inner and outer tubes
Inspect the inner tube and outer tube for scratches
Slide bushing / guide bushing
Inspect the slide bushing and guide bushing for wear or
damage. If they are worn or damaged, replace them with
new ones. If they are not ...
Clutch adjustment
Clutch cable play should be 1 0 -
15 mm (0.4 - 0.6 In) measured at
the clutch lever end. Adjust clutch
cable play according to the following
procedure:
Minor adjustment
Turn the clutch cable adjuster 1
to provide the specified play.
Major adjustment
Turn in the adjuster 1 all the ...
Most accidents can be avoided
The most common type of motorcycle
accident in the u.S. Occurs
when a car traveling towards a
motorcycle turns left in front of the
motorcycle. Is that because other
drivers are out to get motorcyclists?
No. Other drivers simply
don't always notice motorcyclists.
Ride defensively. Wise mot ...