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Kohler Command PRO CH26 - User Manual

Kohler Command PRO CH26
140 pages
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ECH630-ECH749, CH735, CH26, CH745
Service Manual
KohlerEngines.com 124 690 01 Rev. K
2 Safety
3 Maintenance
5 Speci cations
22 Tools and Aids
25 Troubleshooting
29 Air Cleaner/Intake
30 Electronic Fuel Injection (EFI) System-ECH
59 Electronic Fuel Injection (EFI) System-Bosch
92 Lubrication System
94 Electrical System
99 Starter System
103 Disassembly/Inspection and Service
122 Reassembly
IMPORTANT: Read all safety precautions and instructions carefully before operating equipment. Refer to operating
instruction of equipment that this engine powers.
Ensure engine is stopped and level before performing any maintenance or service.

Table of Contents

Questions and Answers

  • B
    bradleycarpenterSep 12, 2025
    Why is oil leaking from the seals and gaskets of my Kohler Command PRO CH26 Crankshaft engine?
    • J
      joseph30Sep 12, 2025
      Oil leaks from the seals and gaskets of your Kohler Crankshaft engine can be attributed to: * A clogged or inoperative crankcase breather. * A broken breather reed. * Loose or improperly torqued fasteners. * Piston blowby or leaky valves. * Restricted exhaust.
  • J
    jessica31Sep 14, 2025
    What to do if Kohler Crankshaft lacks power?
    • I
      ibaileySep 14, 2025
      If your Kohler Crankshaft lacks power, it is recommended to have a Kohler authorized dealer service or replace major engine components.
  • J
    Jeffrey VaughnSep 16, 2025
    What to do if Kohler Crankshaft stops suddenly?
    • J
      Jesse PowellSep 16, 2025
      If your Kohler Crankshaft stops suddenly, service or replace major engine components only by a Kohler authorized dealer.
  • J
    Jackson WashingtonNov 24, 2025
    What to do if my Kohler Command PRO CH26 engine cranks but won't start?
    • P
      Peter SchmidtNov 24, 2025
      If your Kohler Crankshaft engine cranks but doesn't start, several issues could be the cause. Here are some things to check: * Make sure the fuel tank isn't empty. * Ensure the fuel shut-off valve is open. * Poor fuel, dirt, or water in the fuel system. * Check for a clogged fuel line. * Verify the spark plug leads are connected. * Confirm the key switch or kill switch isn't in the “off” position. * Inspect for faulty spark plugs or ignition modules. * Check for SMART-SPARK™ malfunction (on applicable models) or a carburetor solenoid malfunction. * Look for a failed diode in the wiring harness, a malfunctioning vacuum fuel pump, or oil in the vacuum hose. * See if the vacuum hose to the fuel pump is leaking or cracked. * Ensure the battery isn't connected backward a...

Kohler Command PRO CH26 Specifications

General IconGeneral
Fuel TypeGasoline
Cooling SystemAir-cooled
Compression Ratio8.5:1
Crankshaft OrientationHorizontal
Engine TypeOHV
Starting SystemElectric start

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