Irbit Motorcycle Factory Gear up 2005, Owner'S Manual

Page: 31 / 96

31
Note: It is very important to back off on the enricheners as soon as the engine will sustain
itself without stalling. Since the Ural is a carbureted air cooled engine, the plugs will foul quickly
(as soon as one minute) if the engine mixture is too rich. If one plug fouls and the other doesn’t,
the engine will run unevenly and may cause internal damage.
When the engine is hot, do not choke or enrichen the carburetors. To do so risks flooding the
engine.
To start an engine that is flooded, first open the throttle fully, hold it there and give the engine up
to 10 swift kicks. If it still doesn’t fire, take the spark plugs out to see if they are wet with gaso-
line. If they are wet, dry them. Clear excess gasoline from the cylinders by kicking the engine
over 10 times with the plugs out and the throttle closed. Then replace the plugs and repeat the
starting procedure described at the beginning of this section (1).
WARNING: S
USTAINED OPERATION ON ONLY ONE CYLINDER FOR EVEN JUST A FEW MINUTES COULD OVER
-
HEAT THE CYLINDER AND CAUSE IRREVERSIBLE DAMAGE TO EITHER THE VALVES OR PISTON
. T
HUS IT IS CRITI
-
CAL TO IMMEDIATELY SHUT THE ENGINE DOWN IF IT APPEARS TO BE RUNNING ON ONLY ONE CYLINDER
.
Additional Warnings: Once the engine starts, do not allow it to run at a high speed as this could
cause abnormal wear of the parts and may lead to seizure of the piston pin and pistons in the
cylinders since cold oil flows through the oil ducts with difficulty and fails to ensure sufficient lubri-
cation.
A correctly adjusted warm engine should run steadily at low speed with the throttle control twist grip
fully closed.
Do not let the motorcycle sit at idle for more than three minutes, as overheating could result.
OPERATING PRECAUTIONS
WARNING: M
AKE SURE THAT SIDECAR WINDSHIELD IS IN THE FULL BACK POSITION SO IT DOESN
’
T INTER
-
FERE WITH THE RIGHT HANDLEBAR
.
To move the motorcycle from rest, shift to 1
st
gear only. Avoid releasing the clutch suddenly, be-
cause the engine is liable to stall or the motorcycle will start with a jerk. Do not drive the motor-
cycle at speeds below the recommended speeds with the 2
nd
, 3
rd
or 4
th
gears engaged. It is not
advisable to use the 1
st
and 2
nd
gears for a long time, unless so required by road conditions.
typically takes about 5-10 rotations to start the engine. As soon as the engine starts, retract
both enricheners (after a few seconds).