KEEWAY ATV250 - Page 88

84
not adjusted
The engine can not start -Jam of carburetion
Appropriately
-Ignition in advance
or lag
-Mixed air is too
sparse or dense
4.Disassemble and check spark plug Spark plug is wet
-Airproof valve of
carburetion is too
tight
-Seep of carburetion
-Mixed air is too dense
Spark plug is dry -Air cleaner is too
dusty
-Fuel goes into
firebox
5.Measure the air pressure Air pressure is too
of the cylinder infirmness -Air valve seat tooths
incorrectly
-Clearance of air
valve is narrow
-Air valve opens in
lag
The air pressure is normal -Abration of piston and
cylinder
-Ruin of cylinder head
whasher
-Air valve is blocked
-Ignition in advance
or lag
6. Start
·Power lacking of engine Reasons possible
1.Eddy the wheel off The wheel runs unfreely