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1.
Examine the Carburetor - Be sure there is fuel flowing into the carburetor.
Is there fuel flowing into the carburetor?
No- Clogged fuel hose/line or clogged fuel filter
- Clogged Fuel Valve
- Clogged fuel tank breather hose
- Sticking or stuck carburetor float
Yes- SEE STEP 2
2.
Examine the Spark Plug - Remove the spark plug and inspect. (see page 44)
Is the spark plug in good working condition?
No
- Flooded engine and/or carburetor
- Choke valve is closed
- Throttle is stuck open
- Dirty or clogged air filter
- Excessively worn piston rings (replace engine)
Yes
- SEE STEP 3
3.
Spark Test - Test for ignition spark by removing the spark plug and inserting it into the spark plug cap. Place the open end of
the spark plug on a metal part of the engine and kick start the engine. You should see a nice blue spark on the end of the spark
plug. A faint spark will not start the engine.
Is there a good spark?
No
- Fouled or faulty spark plug
- Broken or shorted spark plug wire or spark plug cap
- Broken or shorted ignition coil
- Faulty ignition CDI Box
- Faulty or shorted magneto assembly
- Broken or shorted engine stop switch
- Loose or corroded wires and/or connectors (always clean bad electrical connections)
Yes
- SEE STEP 4
4.
Cylinder Compression Test - Perform a simple compression test by kick starting the engine slowly. Be sure you have the spark
plug installed. While pushing down on the kick starter slowly, you should feel a very hard firmness that will abruptly soften as the
kick start lever moves further down. No hard firmness in the kick start lever means you have poor compression.
Is the compression normal?
No
- Valve stuck open/seized or improper valve timing (see your Xmotos dealer)
- Worn cylinder wall and/or piston rings (replace engine)
- Leaking or damaged cylinder head gasket (see your Xmotos dealer)
Yes
- SEE STEP 5
5.
Engine Start Condition- Start the engine by using the normal starting procedure (see page 26)
Does the engine start but then stop quickly afterward?
Yes- Improper choke operation
- Dirty or improperly adjusted carburetor (Contact your Xmotos Dealer)
- Intake manifold/pipe leak
- Improper ignition timing (see your Xmotos Dealer)
- Dirty or contaminated gasoline
DO NOT TOUCH THE SPARK PLUG OR PLUG CAP
WHILE TRYING TO START THE ENGINE. YOU WILL
RECEIVE AND ELECTRICAL SHOCK WHICH COULD
RESULT IN SERIOUS INJURY OR DEATH.
46
NOTICE
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