Ski-Doo REV Series Shop Manual

Section07ELECTRICALSYSTEM
Subsection 04 (ELECTRIC STARTER)
Test for Ground Circuit in the Armature
Use growler test probes. Check between arma-
ture core and the commutator bars. If growler
lamp turns on, bars are grounded. If so, replace
armature.
A09E08A
1
2
1. Test probes
2. Commutator bars
Test Armature for Shorted Winding
When the armature is rotated in the growler with a
steel strip (hacksaw blade) held above it, the strip
will vibrate over that area of the armature which
has short circuit. Replace armature if so.
A09E09A
1
2
1. Steel strip (hack-saw blade)
2. Growler
Test the Armature for Open Circuit
Use growler test probes. Place one test probe
on a commutator bar and the other test probe
on the neighboring bar. Repeat this operation for
all bars, moving one test probe at a time. If the
growler lamp does not turn on, the armature cir-
cuit between these 2 bars is opened. The arma-
ture should be replaced or repaired; open circuits
most often occur at the commutator riser where
coils are soldered. (Burnt commutator bars are
usually an indication of an open-circuit armature
coil).
Brush Holder
Check the brush holder for insulation using
growler test probes. Place one test probe on the
insulated brush holder and the other test probe
on the brush holder plate. If the growler lamp
turnson,thebrushholderhastoberepairedor
replaced.
Brush Length
Measure brush length. If less than the specified
value, replace them.
LENGTH
MODEL
NEW WEAR LIMIT
All
10 mm
(.400 in)
6mm
(.236 in)
A03E05A
1
2
TYPICAL
1. New
2. Wear limit
End Housing
Check the mica insulation of the positive brush
and also the roller bearing condition. Replace, if
necessary.
266 mmr2004-Rev

Ski-Doo REV Series Specifications

General

Chassis	REV
Track Width	15 in
Fuel Capacity	10.6 gal
Seating Capacity	1
Reverse	Available on most models
Electric Start	Available on most models