Spark Plug Choosing And Checking - Serpento PREDATOR Manual De Usuario

1) Before replacing, engine should be stopped after enough warm-up.
2) Before replacing, put a empty box under engine, open oil sump, take spring, filter out and step reverse-starting arm to ensure the oil out fully.
3) Clear the bolt and filter enough and check seal ring, then put every things it to right order.
4) Immit special new 4 stroke engine oil 15W/40-SG and fix engine oil stuff.
5) Start engine and wait for 3-5 minutes.
6) Stop engine and wait for 2-3 minutes, make motorcycle on solid and level ground, check engine oil line to ensure no leaking.
NOTICE: please deal with the engine oil under environment protection principle. You are suggested to seal the engine oil in a bolt and give it to
the cycle center or service in order to make cycle use. Do not throw it in rubbish can or pour it on ground or into cloaca.
Touch engine oil may cause skin cancer. We suggest you wash hands timely if you touch engine oil.

Spark plug choosing and checking

Spark plug is the important part of engine, remove sleeve of spark plug and check the clearance of electrode. The engine power and ignition
capacity will be affected if carbon stored too much.
Remove spark plug cup, clear the dirt around, using spark plug sleeve spanner in tool kit to remove spark plug, clear dirt of spark plug by using
steel wire brush.
Check the damage of the spark plug, clearance of electrode, seal of the seal ring .if any damage, change the spark plug.
The normal clearance of electrode is 0.6-0.8mm.
The period of spark plug changing is: every 8000km on time.
Fix spark plug on screw thread and tighten the spark plug by using spark plug sleeve spanner when changing spark plug.
NOTICE: engine will be damaged if the spark plug is not right to engine. Different model of spark plug affects the engine
performance, if you can buy the right model of spark plug,
please contact the dealer to buy the appropriate refill spark plug.
Do not tighten the spark plug too much to avoid the damage of the engine screw
thread. On usually case, after hand tighten, and span for 1/4 to 1/2 ring by spanner.
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