Carburettors Cleaning And Inspection; 1991 To 1998 Tdm Models, All Trx And Xtz Models - Yamaha TDM850 User Manual

4*8 Fuel and exhaust systems
7.7a Slacken the upper or lower clamp screws as required
(arrows)...
clamp the two warmer system coolant hoses to
prevent loss of coolant and disconnect the hose
from the side of each carburettor.
7 Fully slacken the clamps on the cylinder
head intake rubbers, then
carburettors off the intakes and remove them
(see illustrations). To remove
carburettors with the rubbers, slacken the
lower clamp bolts (which
accessible). To leave the rubbers on the
cylinder head, slacken the upper clamp bolts.
Note: Keep the carburettors level to prevent
fuel spillage from the float chambers and the
possibility of the piston diaphragms being
damaged.
Caution: Stuff clean rag into each cylinder
head intake after removing the carburettors to
prevent anything from falling in.
8 Place a suitable container below the float
chambers, then slacken the drain screw on
each chamber in turn and drain all the fuel
from the carburettors (see
Tighten the drain screws securely once all the
fuel has been drained.
*
:
^r^fc -
7.8 Float chamber drain screw (arrowed)
9 If necessary, slacken the clamps securing
the intake rubbers and remove them, noting
which way up and round they fit.
Installation
ease the
10 Installation is the reverse of removal,
the
noting the following.
a) Check for cracks or splits in the cylinder
are more
head intake rubbers, and renew them if
necessary.
b) Make sure the carburettors are fully engaged
with the intake rubbers and the clamps are
securely tightened.
c) Make sure all hoses are correctly routed
and secured and not trapped or kinked.
d) Refer to Section 11 for installation of the
throttle cables. Check the operation of the
cables and adjust them as necessary (see
Chapter 1).
e) Refer to Section 12 for details of choke
illustration). cable reconnection.
f) Check idle speed and carburettor
synchronisation and adjust as necessary
(see Chapter 1).
J ■ ■ A
^ ST'.. By
7.7b
. and remove the carburettors
Carburettors
cleaning and inspection
A
Warning: Refer to the precautions
given in Section 1 before starting
work.
1991 to 1998 TDM models, all TRX
and XTZ models
Disassembly
1 Remove the carburettors from the machine as
described in the previous Section. Note: Do not
separate the carburettors unless absolutely
necessary; each carburettor can be dismantled
sufficiently for
adjustments while in place on the mounting
brackets. Dismantle the carburettors separately
to avoid interchanging parts.
2 Unscrew and remove the top cover retaining
screws (see illustration). Lift off the cover and
remove the spring from inside the piston, noting
the spring seat fitted in the
8.2 Remove the screws (arrowed) and lift off the cover
disassembly, Hs>
1
all normal cleaning and
Staned by Stalker