Xmotos XB31, Operating Instructions Manual

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2.
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 3
3.
Carburetor Air Screw Inspection - Check the carburetor air screw. Turn the screw clockwise until you feel it stop. Do not
tighten. Back out the screw counter clockwise 1.5 turns.
Is the air screw setting correct?
No
- Adjust using the procedure above.
Yes - SEE STEP 4
4.
Ignition Timing Inspection
- See your local Xmotos dealer or motorcycle repair shop to have the ignition timing inspected.
Only attempt these procedures if you are qualified and have the proper tools needed.
Is the ignition timing normal? (Timing is non-adjustable)
No - Faulty CDI ignition box
- Faulty ignition pulse generator
Yes - See your Xmotos dealer to have your motorcycle serviced
1.
Examine the Fuel Line
- Disconnect the fuel hose at the carburetor.
Is there fuel flowing freely?
No
- Clogged fuel hose/line or clogged fuel filter
- Clogged Fuel Valve
- Clogged fuel tank breather hose
Yes - SEE STEP 2
2.
Carburetor Inspection
- Disassemble the carburetor and check for clogs.
Was the carburetor clogged and dirty?
No
- SEE STEP 3
Yes - Carburetor is not serviced frequently enough, contaminated fuel
3.
Ignition Timing & Valve train Inspection
- See your local Xmotos dealer or motorcycle repair shop to have the ignition timing
inspected. Only attempt these procedures if you are qualified and have the proper tools needed.
Are the ignition timing, valve timing and valve springs normal? (Timing is non-adjustable)
No - Faulty CDI ignition box
- Faulty ignition pulse generator
- Broken valve spring
- Broken or damaged camshaft sprocket
Yes - See your Xmotos dealer to have your motorcycle serviced
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.
NOTICE
TROUBLESHOOTING
POOR PERFORMANCE AT IDLE & LOW SPEED Cont.
POOR PERFORMANCE AT HIGH SPEED