Arctic Cat Panther 1974 Manual page 110

ELECTRIC START TESTING
straight (not bent), and sliding part of brush is
clean (not dirty). Connect one lead of the
ohmmeter to positive (+) side brush box, and
the other lead to negative (-) side base plate.
Ohmmeter is to register OPEN. Any other
reading indicates faulty insulation and re-
placement of the brush box is required.
TACHOMETER TESTING
Check Tachometer
Equ i pment Necessary: Electro-Specialties
Voltmeter Model No. MS-10 and Quik Jack
1. Raise the rear of the snowmobile off the shop
floor, using a Quik Jack. Make sure the track
is free to rotate.
2. Start the engine and allow it to idle.
3. Connect one lead of the voltmeter to the
positive (+) terminal on the tachometer, and
the other lead to the negative (-) terminal,
Fig. IV-45. Voltmeter is to register 12-15 AC
volts.
Fig. IV-45
AC - D.C
voltmeter
G~~
o.c
~
AC.
Tachometer
4. I f the voltmeter registers 12-15 AC volts, but
the tachometer does not function, the
tachometer is to be replaced because it is
defective. I f the voltmeter does not register
12-15 AC volts, there is a problem in another
area (proceed to step 5).
5. Connect one lead of the voltmeter to an AC
terminal on the circuit board and the other
lead to GRbUND on the circuit board, Fig.
IV-46. Voltmeter is to register 12-15 AC
volts.
Fig.IV-46
'\\\ 5
10 'IS
1,,/
\\""ll/"'"
o
II>
A.C- D·C.
wltmeter
6. I f voltmeter registers 12-15 AC volts and the
tachometer does not operate, the wires
running from the tachometer to the circuit
board are defective. If voltmeter does not
register 12-15 AC volts, the magneto
alternator may be defective (see Check
Magneto Alternator, page IV-21).
MAGNETO GENERATOR DISASSEMBLY
Remove Recoil Assembly and Fan
Equipment Necessary: Screwdriver Having a
5/16-lnch Blade
1. Remove the four screws and lock washers that
hold recoil assembly on fan housing, using a
screwdriver having a 5/16-inch blade. Slide
recoil starter assembly away from fan housing
IV-26
and carefully allow it to retract against
console-mounted recoil cable bracket.
2. Remove externally -mounted wIring
components (see Section II, Engine Servicing,
Remove External Components, steps 6-8,
page 11- 1 2) .