20
period of significant over-temp. If tripped, review blast cooling and/or other cooling impediments.
Operating temperatures should, but are not required, to be kept below 200 degrees.
4) Ohm Check all plug wires and examine for evidence of wear or chafing. Lead resistance should
be roughly 180 ohms per foot of wire
for wire with no “F” markings. Newer wire sets will
measure roughly 40 ohms per foot and will be marked “F40” at intervals along the wire.
5) Remove and inspect spark plugs for signs of unusual wear or build-up. Replace plugs at 125
hrs. Re-gap plugs per instructions. When re-installing auto style plugs with auto plug adapters,
review plug/adapter installation guidelines. Ref. Appendix 1.
6) Remove ignition and examine shaft for bearing play
–
disassembly of ignition is not necessary.
Look for excessive radial and axial play. Shaft rotation should be free, with no catching, flat
spots, or grinding. While you have access, inspect the ignition drive cushions which may get
hard over time.
7) Reinstall the ignition - see Setup instructions.
8) Verify proper operation including:
a) Perform Ignition Checks on each ignition
– see Ignition Check section for guidelines:
i) Basic internal alternator Ramp Check.
ii) Internal alternator Cut-Out test
– record results in logbook for L, R, Both.
Mode Switch Check, if installed.
