Section 04 ENGINE (2-STROKE)
Subsection 07 (EXHAUST SYSTEM)
25 Nm
(18 lbfft)
F00D29B
25 Nm
(18 lbfft)
5
1
2
3
4
8
7
50 Nm
(37 lbfft)
6
50 Nm
(37 lbfft)
9
50 Nm
(37 lbfft)
24 Nm
(17 lbfft)
12 Nm
(9 lbfft)
Install tuned pipe cone no. 5 with sealing ring
no. 15 and clamp no. 4.
Position clamp no. 4 as illustrated. Do not tighten
clamp yet.
F01D41A
1
2
1. Clamp
2. Exhaust collar
With hose removed, align cone outlet with muffler
inlet.
NOTE: Due to exhaust cone angle, it may have to
be rotated to obtain alignment.
Push cone no. 5 until it touches tuned pipe, then
tighten exhaust clamp no. 4 andtorqueto4N•m
(35 lbf•in).
CAUTION: There must be no gap between
tuned pipe cone and tuned pipe head.
NOTE: Exhaust clamp nuts should be tightened al-
ternately to assure no leakage and to obtain spec-
ified torque.
787 RFI Engines
CAUTION: Torque wrench tightening specifi-
cations must be strictly adhered to. Locking
devices (ex.: locking tabs, elastic stop nuts,
self-locking fasteners, etc.) must be installed
or replaced with new ones where specified. If
the efficiency of a locking device is impaired, it
must be renewed.
NOTE: Loosen all pipe supports from engine be-
fore installing tuned pipe.
Ensure rubber bushings no. 19 and sleeve no. 18
are not damaged and are properly installed into
tune pipe support(s).
CAUTION: Damage to bushings and/or sleeve
will eventually cause stress to tuned pipe and
may cause cracking.
Make sure that gasket no. 16 is properly located
on exhaust manifold prior to finalizing pipe instal-
lation.
Install the tuned pipe end into exhaust hose no. 3.
Do not torque yet.
Torquing Sequence
CAUTION: Torque the tuned pipe in accordance
with the following sequence, otherwise serious
engine damage may occur.
176 smr2004-Complete Line Up