Honda motorcycle parts
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1982 Honda CB900F · Electrical Buying guide
A no-crank fault, loss of spark and a discharged battery need different tests. Check battery condition, cable connections, fuses and the affected circuit before replacing a main loom or electronic unit. Identify any modified lights, ignition or battery before choosing parts.
CB900F main wiring loomMain harness referenced to 32100-438-670, explicitly listed for the 1981–82 CB900F Supersport.View part
NGK DR8EA spark plugConventional resistor plug; NGK lists DR8EA as the replacement for discontinued DR8ES.View part
Rick's ignition coil with wiresReplaces 30500-422-003 or 30500-422-013; wires attached, with two coils specified per motorcycle.View part
Related parts: Ignition coil sub-harness A · Rick's eight-wire rectifier/regulator · Starter solenoid relay with fuse
Honda’s 1982 CB900F addendum specifies NGK DR8ES. NGK’s published discontinued-plug table lists DR8EA as its replacement, explaining the current listing’s different suffix. The separately listed DR8EIX is an iridium option; confirm the correct recommendation for the market and any modified engine or ignition.
The main loom and coil sub-harness are separate purchases. A relay connector, horn branch or damaged terminal may be the only wiring repair needed. If there is heat damage, inspect the adjoining wires and find the cause before energizing new parts.
Check the battery under load, cable connections, grounds, starter relay and start-control circuit first. The clutch and neutral interlock circuits also need testing. Replace the loom only when inspection and circuit tests identify damage requiring that repair.
NGK’s 2021 South African catalogue identifies DR8EA as the replacement for DR8ES. Honda’s 1982 addendum lists DR8ES as standard. Keep that replacement relationship with the full plug code, and check market-specific or modified-engine requirements before substituting another heat range.
Only if the box itself is the fault. Inspect for shorts, overloads, loose contacts and damaged wiring. Preserve the specified fuse rating and repair the cause; a higher-rated fuse is not a remedy.
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