Kohler 4.5 CKM — Ignition Timing
Adjustments · Ignition system
For the Kohler 4.5 CKM, from the Kohler service manual.
Applies to: Kohler 4.5 CKM, Kohler KT17II engine
Before you start
- Breaker point cover screws must be screwed back into mounting pad after cover is removed to keep engine oil from spurting out crankcase.
Procedure
- Rotate engine until S mark is visible; chalk S line for easy reading.
- Start unit and operate at 1800-1920 rpm.
- Aim timing light into sight hole; light should flash as S mark is centered.
- If light flashes before mark centered, timing is overadvanced; after, retarded.
- If timing is off, remove breaker point cover, loosen gap adjusting screw, shift breaker plate until mark is exactly centered.
- Retighten adjusting screw and recheck timing before replacing breaker point cover.
Tools required
- timing light Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 23° BTDC
- 1800-1920 rpm
Full service-parts list: Kohler 4.5 CKM →
Source: Kohler 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.