SSR 189 Owner's Manual - page 16
DIRT BIKE OWNERS MANUAL SSR189
Using the recommended oil, cleaning is not required crankcase or
internal engine components as the multigrade oils which have
maintained detergent agents clean and free of sediment all lubricated
components.
2. tires
The proper air pressure gives better stability and driving comfort and
improves the life course of the tire.
• Frequently check the tire pressure and correct if necessary.
• Check the pressure when tires are cold. Check they have no cuts or
any sharp object embedded.
• For safety, replace worn tires excessively.
1. Remove the cover from the front cover. 2. Disconnect the spark
plug cap and remove it with a wrench spark plug. 3. Clean dirt from
the spark plug (remove carbon deposits) with a plug cleaner or, if
necessary, use a wire brush. If the plug is corroded or there is too
coal deposit in it, it must be replaced. 4. Check the clearance
between the spark plug electrodes, using a feeler gauge wire type.
5. The spark plug gap or light should be 0.6-0.7 mm. If necessary
adjust the spark gap:
1. Gently bend the side electrode
2. Ensure that the spark plug washer is in good
condition.
3. While the washer installed, place the spark plug
by hand, to avoid damaging the threads.
In
order to check your bike fuel air mixture & thus
running performance, take out the spark plug and check
the electrode; the color should be golden brown. If it is
white, the engine is running too lean (not enough fuel). If it is black
(sooty color) it is too rich (too much fuel). If it is white & black, the
engine is VERY lean & causing misfire, which you should be able to
detect whilst riding. As your jets are close to what they should be for
the UK, minor alternations can be made by adjusting the needle
height on your carb, without the need for different size jets.
• Ensure the correct pressure in tires 20-30 PSI for off-road.
Unless you have a rim lock fitted to your rear wheel, do not
allow the tire pressure to drop below 20 PSI. this is of
particular importance on bikes with 140cc engine they have the power
to spin the wheel inside the tire & rip the valve off your inner tube. If you
want to run low tire pressure for traction, get a rim lock fitted. Lock it,
load it and then let your air out. Unless you want to pinch your front tire
on a rock and get a puncture, the same pressure applies, min 20 PSI.
check your tire pressure before riding to ensure your trip isn
’t cut short.