ELECTRICAL SYSTEM 14-8
IGNITION TIMING
0
793 HO Engines
Normally ignition-timing adjustment should not be required. It has
been set at the factory and it should remain correctly adjusted
since every part is fixed and not adjustable. The only time the
ignition timing might have to be changed would be when
removing and reinstalling the magneto housing, replacing
the crankshaft, the magneto flywheel, the trigger coil or the
MPEM. If the ignition timing is found incorrect, first check for
proper crankshaft alignment. This might be the indication of a
twisted crankshaft. Refer to
Chapter 7 - Engine
(Cylinders/Head/Base)
for more details. The ignition timing can
be checked with either the engine hot or cold.
Also, the ignition timing is to be checked at 3500 RPM with a
timing light.
Engine break-in retard timing for the Snow Hawk 600HO is as
follows the first hour of operation.
TYPICAL
1. TDC gauge on MAG side
2. MAG side piston at TDC
●
NOTICE:
Between 3000 and 4000 RPM, the spark advance does not
change. So when checking ignition timing at 3500 RPM, a
change in engine speed within ~ 500 RPM will not affect the
timing mark when checked with the timing light.
Scribing a Timing Mark
o
Clean the area around the MAG side spark plug, and
remove it.
o
Install the TDC gauge in the spark plug hole,
(magneto side) and adjust as follows:
a. Position the MAG piston at approximately TDC.
b. Assemble the gauge with the adaptor and tighten the
roller lock nut. Do not tighten the adaptor lock nut.
c. Screw the adaptor into the spark plug hole and tighten
to prevent movement in the plug hole.
d. Position the dial face toward the PTO. Move the gauge
down until the needle just begins to move, then move
down a further 5 or 6 mm (approximately 1/4 in). Tighten
adaptor lock nut by hand.
Summary of Contents for SH-MAN-2007
Page 17: ...WIRE CABLE AND HOSE ROUTING 16 1 CHAPTER 16 WIRE CABLE AND HOSE ROUTING...
Page 31: ...DIMENSIONS AND TOLERANCES 15 1 CHAPTER 15 DIMENSIONS AND TOLERANCES...
Page 35: ...ELECTRICAL SYSTEM 14 1 CHAPTER 14 ELECTRICAL SYSTEM...
Page 38: ...ELECTRICAL SYSTEM 14 4 WIRING DIAGRAM...
Page 51: ...CHASSIS STEERING SYSTEM AND BODY 13 1 CHAPTER 13 CHASSIS STEERING AND BODY...
Page 52: ...CHASSIS STEERING SYSTEM AND BODY 13 2 CHASSIS AND STEERING SYSTEM...
Page 53: ...CHASSIS STEERING SYSTEM AND BODY 13 3 CHASSIS AND STEERING SYSTEM...
Page 54: ...CHASSIS STEERING SYSTEM AND BODY 13 4 CHASSIS AND STEERING SYSTEM...
Page 55: ...CHASSIS STEERING SYSTEM AND BODY 13 5 CHASSIS AND STEERING SYSTEM...
Page 60: ...CHASSIS STEERING SYSTEM AND BODY 13 10 BODY HOOD...
Page 61: ...CHASSIS STEERING SYSTEM AND BODY 13 11 BODY HOOD...
Page 63: ...CHASSIS STEERING SYSTEM AND BODY 13 13 BODY BELLY PAN...
Page 64: ...CHASSIS STEERING SYSTEM AND BODY 13 14 BODY BELLY PAN 23 24...
Page 69: ...REAR SUSPENSION SHOCKS AND TRACK 12 1 CHAPTER 12 REAR SUSPENSION SHOCK AND TRACK...
Page 70: ...REAR SUSPENSION SHOCKS AND TRACK 12 2 REAR SUSPENSION...
Page 71: ...REAR SUSPENSION SHOCKS AND TRACK 12 3 REAR SHOCK 53 67 68 69 70...
Page 72: ...REAR SUSPENSION SHOCKS AND TRACK 12 4 MIDDLE SHOCK 54 69 67 70...
Page 75: ...REAR SUSPENSION SHOCKS AND TRACK 12 7 SHOCK EXPLODED VIEW 11 10 11 9 2 12 13 7 6 8 1 5 3 4...
Page 77: ...REAR SUSPENSION SHOCKS AND TRACK 12 9 REAR PAD...
Page 93: ...FRONT FORK AND SKI 11 1 CHAPTER 11 FRONT FORK AND TWIN AXIS SKI...
Page 94: ...FRONT FORK AND SKI 11 2 FORK LEG 1 1 3 5 2 2 4 3 6 7 8 9...
Page 112: ...HYDRAULIC BRAKE SYSTEM 10 1 CHAPTER 10 HYDRAULIC BRAKE SYSTEM...
Page 118: ...SECONDARY TRANSMISSION SYSTEM 9 1 CHAPTER 9 SECONDARY TRANSMISSION SYSTEM...
Page 128: ...PRIMARY TRANSMISSION SYSTEM 8 1 CHAPTER 8 PRIMARY TRANSMISSION SYSTEM...
Page 155: ...ENGINE CYLINDERS HEAD BASE EXHAUST 7 1 CHAPTER 7 ENGINE CYLINDERS HEADS BASE EXHAUST...
Page 156: ...ENGINE CYLINDERS HEAD BASE EXHAUST 7 2 ENGINE BOTTOM END...
Page 158: ...ENGINE CYLINDERS HEAD BASE EXHAUST 7 4 ENGINE CRANKSHAFT AND PISTONS...
Page 160: ...ENGINE CYLINDERS HEAD BASE EXHAUST 7 6 ENGINE TOP END...
Page 162: ...ENGINE CYLINDERS HEAD BASE EXHAUST 7 8 ENGINE EXHAUST SYSTEM...
Page 180: ...ENGINE CYLINDERS HEAD BASE EXHAUST 7 26...
Page 190: ...COOLING SYSTEM 6 1 CHAPTER 6 COOLING SYSTEM...
Page 191: ...COOLING SYSTEM 6 2 COOLING SYSTEM...
Page 196: ...REWIND STARTER 5 1 CHAPTER 5 REWIND STARTER...
Page 197: ...REWIND STARTER 5 2 REWIND STARTER...
Page 203: ...ENGINE REMOVAL 4 1 CHAPTER 4 ENGINE REMOVAL...
Page 211: ...FUEL SYSTEM 3 1 CHAPTER 3 FUEL SYSTEM...
Page 214: ...FUEL SYSTEM 3 4 CARBURET0RS TM 40...
Page 227: ...PERIODIC MAINTENANCE 2 1 Chapter 2 PERIODIC MAINTENANCE...
Page 237: ...PERIODIC MAINTENANCE 2 11 Symbols used on the NGK spark plugs...
Page 239: ...GENERAL INSTRUCTIONS 1 1 CHAPTER 1 GENERAL INSTRUCTION...