Fuel Pump; Exhaust System - BRP ROTAX FR 125 MAX Repair Manual

Fuel Pump

Note: Only the diaphragm and gasket set of
the full pump can be replaced. If the
cause for an engine malfunction is
suspected to be the fuel pump, it can
be found out only by replacement of the
pump.
Verify the impulse line (1) the fuel supply line (2)
and the fuel outlet line (3) for good condition. Renew
as required.
Note: If the fuel pump is attached on the support bracket of the intake silencer
than oil condensate could settle in the impulse line during engine stops.
Pull off the impulse line (1) from the fuel pump, remove any oil condensate and dispose
of it ecologically.
Attention: If the pump is attached in a position from where the oil condensate can not
drain, it could impair the operation of the fuel pump and consequently result
in engine malfunction or engine damage.

Exhaust system

Note: Distinguish between two different exhaust systems which differ mainly in
the diameter of the connecting bend between muffler and after-muffler.
Inspect exhaust system for cracks
Clean the ball joint from combustion deposits and
inspect for wear
Verify the riveting of the cover (3 or 6) for tight fit.
Note: If the noise emission of the exhaust
system increases, the damping mat (2
or 5) may be renewed.
grind open the riveting of the cover (3 or 6)
remove the old damping mat
roll the damping mat into a cylindrical shape and
fit it into the after-muffler
fit the cover (3 or 6) and secure by rivets.
Page 42
Repair Manual FR 125 MAX and FR 125 Junior MAX
Figure 57
Figure 58
Edition 11/2000