Camshaft Profile Limits; Flywheel, Fan And Ignition System - Honda GX160 Tech Manual

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Owner's manual (60 pages)

Operational manual (47 pages)

Technical regulations (10 pages)

Table Of Contents

Table of Contents

IN TAKE

Degrees

0.050"

10.5 to 14

0.100"

26.5 to 30

0.150"

45 to 48.5

0.180 Split"

0.200"

71 to 74.5

Maxlift .227"

Peak 104 – 107 ATDC

0.200

136 to 141

0.180 Split"

0.150"

162.5 to 167

0.100"

180.5 to 185

0.050"

197.5 to 201

Check max lift at intake and exhaust.

FLYWHEEL, FAN AND IGNITION SYSTEM

Caution should be used when removing flywheel. Do not hit with hammer or other heavy objects.

Service manual show flywheel to be removed with commercially available 6" puller. Another method is

inertia type knocker that threads onto crankshaft end.

The transistorized magneto ignition is fixed at 25 degrees BTDC and may not be altered in

any way. Firing must not exceed 0.104 "or 26 degrees BTDC.

Quick check: Turning flywheel clockwise-if the leading edge of the depression of flywheel rim

where the magnet is mounted is not still under the right hand coil leg at0.115" BTDC, it is probably

illegal and should be checked further. If timing needs to be checked further see page 19.

A. Flywheel keyway or its position must not be altered.

B. Key may not be deleted or altered in any way.

C. Magnet and its position may not be altered in any way.

D. Magnet retaining screw may not be altered in any way. Screw may not be replaced with larger

or smaller screw. No heli-coiling of mounting hole.