APRILIA RS 250 Service And Repair Manual page 236

 


  
The running-in of the engine is important to ensure its
correct functioning.
If possible, drive on hilly roads and/or roads with many
bends, so that the engine, the suspensions and the
brakes undergo a more effective running-in.
During running-in, change speed. In this way the compo-
nents are first ìloadedî and then ìrelievedî and the en-
gine parts can thus cool down. Even if it is important to
stress the engine components during running-in, take
care not to exceed.


Only after the first 1500 km (937 mi) of run-
ning-in you can expect the best performance
levels from the vehicle.
Keep to the following indications:


Do not open the throttle completely if the speed is low,
both during and after the running-in.


During the first 100 km (62 mi) put on the brakes with
caution, avoiding sharp and prolonged brakings.
This ensures a correct bedding-in of the pads on the
brake disc.


During the first 800 km (500 mi) never exceed 6000
rpm.

After the first 1000 km (625 mi), carry out the
checks indicated in the column "After run-
ning-in" of the REGULAR SERVICE INTER-
VALS CHART, see p. 9-25 (PERIODIC SERVICE
CHART FOR THE COMPONENTS), in order to avoid
hurting yourself or other people and/or damaging the
vehicle.


Between the first 800 km (500 mi) and 1600 km (1000
mi) drive more briskly, change speed and use the max-
imum acceleration only for a few seconds, in order to
ensure better coupling of the components; never ex-
ceed 9000 rpm (see table).


After the first 1600 km (1000 mi) you can expect better
performance from the engine, however, without ex-
ceeding the maximum allowed rpm (12000 rpm).
Engine maximum rpm
recommended
Mileage km (mi)
0÷800 (0÷500)
800÷1600 (500÷1000)
oltre 1600 (1000)
9 - 16
rpm
6000
9000
12000
      
  
Follow with care these recommendations when repairing,
disassembling and reassembling the vehicle.

The use of naked flames is forbidden for any
type of operation.
Before commencing any service or inspection
operation on the vehicle, switch off the engine and
remove the key, wait until the engine and the exhaust
system have cooled down and, if possible, raise the
vehicle with the suitable equipment onto firm flat
ground.
In order to avoid burns, be careful not to touch any
parts of engine or exhaust system which have not
cooled down completely.
The vehicle is constructed of inedible parts.
Do not bite, suck, chew or swallow any part of the ve-
hicle for any reason whatever.
If not expressly described, the reassembly of the
units is carried out by reversing the order of opera-
tions. Do not run the engine in closed or badly venti-
lated places.
Handle fuel with the greatest caution.
Never use fuel as a solvent for cleaning the vehicle.
Disconnect the negative cable (–) from the battery
when electric welding.
When two or more persons are working together,
make sure that each is working in safe conditions.
– Use only original aprilia SPARE PARTS.
– Use the recommended lubricants.
– Use, when necessary, the special tools
for this vehicle.
– Always use the centre stand, if the vehicle is provided
with it.

– In order to carry out certain interventions we recom-
mend using a stand
position.
– When tightening screws and nuts, begin with those
having greater diameters or with inner ones, proceed-
ing diagonally.
Tighten screws or nuts in successive passages before
applying driving torque.
– Clean and wash carefully any disassembled parts with
low inflammability detergents.
– Whenever possible, lubricate the parts before reas-
sembly.
– Make sure that each component has been reassem-
bled correctly.
– Always replace gaskets, grommets, circlips, O-rings
and split pins with new ones.
– Before disconnecting the joints (pipes, cables, etc.),
mark the positions on all of them and mark them with
different distinguishing signs.
Each piece must be marked clearly, in order not to
have problems during installation.
The bearings must rotate freely, without halting a/o
noise otherwise they must be replaced.

Never use a circlip twice. When a circlip is re-
moved, it must be replaced with a new one.
When assembling a new circlip be careful not
to stretch its ends more than strictly necessary to put
it on the shaft.
After installing a circlip, make sure that it is com-
pletely and firmly inserted in its seat.
RS 250

designed
to hold the vehicle in a vertical