I have a 18HP kohler in my argo 8x8 just purchased it about 3 months ago it seems to be under powered I noticed the rear spark plug is always chalk white front plug is golden brown, I have changed plugs 3 times but they stay the same also how do I check the compression in the cylinders do I start the motor or just turn it over.
Re: Kohler Magnum Build « Reply #10 on: October 13, 2008, 07:34:52 PM » I would first try to find a flywheel off a command and try and see if it fits first and then go from there that would be your best bet.
Kohler repair parts and parts diagrams for Kohler M18-24585 - Kohler Magnum Engine, Made for American Yard Products, 18hp, 13.4kW
Flywheel 13-15-57 (TP-2233-C) diagram and repair parts lookup for Kohler M18-24506 - Kohler Magnum Engine, Made for Cub Cadet, 18hp, 13.4kW
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Kohler M18 Starter
LIMITED 2 YEAR MAGNUM ENGINE WARRANTY Kohler Co. warrants to the original consumer that each new MAGNUM engine sold by Kohler Co. will be free from manufacturing defects in materials or workmanship in normal service for a period of two (2) years from date of purchase, provided it is operated and maintained in accordance with Kohler Co.'s instructions and manuals. Page 16 FORM NO.: 52 590 02 ...