Charging System Testing - General Information And Precautions; Charging System - Leakage And Output Test - Yamaha TDM850 User Manual

9»24 Electrical system
29.19 Fit a new O-ring onto the rear of the housing
by its spring and is free to move easily in its
holder.
19 Slide the shims onto the end of the armature
(see illustration 29.5b), then fit a new rear cover
O-ring (see illustration). Fit the rear cover onto
the housing, aligning the marks noted or made
earlier (see illustration 29.5a).
20 Slide the shims onto the front of the
armature (see illustration 29.4b), then fit a new
front cover O-ring (see illustration). Apply a
smear of grease to the lips of the front cover oil
seal. Fit the tabbed washer onto the cover (see
illustration), making sure the tabs locate
correctly, then install the cover, aligning the
marks made on removal (see illustration 29.4a).
Remove the protective tape from the shaft end.
21 Check the alignment marks made on
removal are correctly aligned, then install the
long bolts and tighten them securely (see
illustration).
22 Fit the starter motor lead onto the terminal
bolt, then secure it with the nut and cover it with
the rubber boot (see illustration 29.1).
23 Install the starter motor (see Section 28).
29.20b ... and fit the tabbed washer into the cover
29.20a Fit a new O-ring onto the front of the housing .
30 Charging system testing -
general information and
precautions
1 If the performance of the charging system is
suspect, the system as a whole should be
checked first, followed by testing of the individual
components. Note: Before beginning the checks,
make sure the battery is fully charged and that all
system connections are clean and tight.
2 Checking the output of the charging system
and the performance of the various components
within the charging system requires the use of a
multimeter {with voltage, current and resistance
checking facilities).
3 When making the checks,
procedures carefully to prevent
connections or short circuits, as irreparable
damage to electrical system components may
result if short circuits occur.
4 If a multimeter is not available, the job of
checking the charging system should be left to a
Yamaha dealer.
31 Charging system -leakage
and output test
1 If the charging system of the machine is
thought to be faulty, remove the seat (see
Chapter 8) and
checks.
Leakage test
Caution: Always connect an ammeter in
series, never in parallel with the battery,
otherwise it will be damaged. Do not turn the
ignition ON or operate the starter motor when
the ammeter is connected - a sudden surge in
follow the current will blow the meter's fuse.
incorrect 2 Turn the ignition switch OFF and disconnect
the lead from the battery negative (-ve) terminal.
3 Set the multimeter to the Amps function and
connect its negative (-ve) probe to the battery
negative (-ve) terminal, and positive (+ve) probe
to the disconnected negative (-ve) lead (see
29.21 Install and tighten the long bolts
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