Cummins/Onan CK-216E — Timing The Ignition
Adjustments
For the Cummins/Onan CK-216E, from the Cummins/Onan service manual.
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Procedure
- Remove breaker box cover and check witness marks.
- Adjust breaker point gap to 0.020 inch at full separation.
- Turn flywheel until TC mark and gear cover mark align.
- Turn flywheel left until degree mark about two inches past mark.
- Turn flywheel slowly clockwise and check if points separate when degree mark aligns.
- Loosen breaker box mounting screws and shift assembly to advance or retard timing.
Tools required
- feeler gauge Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 19° spark advance for 1500-2400 rpm
- 25° spark advance for 2500 rpm and up
- Breaker point gap 0.020 inch
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.