Kohler K91, K141, K161, K181, K241, K301, K321, K341 Single Cyliner Engine Service Manual (tp2379)

These Kohler K-series single-cylinder engines usually live on garden tractors, small loaders, generators and pumps, working in dust, vibration and changing weather. This service manual is what I reach for when I need to prove what’s actually failed before I pull a head, split a crankcase, or start ordering parts. For example, if an engine starts hard, smokes, and has a knock, I’ll use this book to walk through compression checks, valve inspections and rod/crank checks in a logical order so I don’t miss the real cause.

Applications & Use Cases

• Trace no-start or hard-start complaints by following the ignition, fuel, and compression checks in sequence.
• Isolate low power or surging by verifying governor linkages, carb adjustments, and basic timing before replacing parts.
• Inspect and rebuild the top end (head, valves, guides) with correct disassembly order, clearances, and reassembly patterns.
• Tear down and reassemble the short block while keeping bearings, seals, and gear timing aligned and properly seated.
• Verify and fine-tune governor and carb adjustments after a rebuild so the engine runs clean under load.

FAQ

Q: Can I use this on a tablet or phone in the shop?

A: Yes, it works well digitally; you can zoom in on diagrams and keep it open next to the machine for step-by-step checks.

Q: Is it worth printing sections of this manual?

A: Definitely—most techs print the pages they’ll need for a job so they can mark notes, oily fingerprints, and torque sequences right at the bench.

Safety Note

Always lock out the machine, disable ignition, and let the engine cool before performing any inspection or disassembly.

Kohler K91, K141, K161, K181, K241, K301, K321, K341 Single Cyliner Index:

General Information
Special Tools
Periodic Maintenance .
Troubleshooting
Air Cleaner And Air Intake System
Fuel System And Governor
Retractable Starters
Electrical Systems And Components
Automatic Compression Release
Disassembly
Inspection and Repair
Reassembly

Kohler