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Go Back   Only Cub Cadets > Cub Cadets > Cub Cadet Rear Engine Rider & ZTR (RER)

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Old 08-13-2026, 02:43 PM
mjpa58 mjpa58 is offline
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Join Date: Aug 2026
Location: PA
Posts: 1
Default Ultima ZT1 46 - Hard Engine Cranking When Hot

I have a ZT1 that's a little over 3 years old. Kohler KT725 engine starts flawlessly when cold. No issues at all. My concern is trying to restart following mowing/cleaning the machine while the engine is still hot (ie., sitting for about 5 minutes or less). Starter engages, cranks for less than a second, then freezes. Have to wait about 15-20 minutes, then restarts again without any problems. Mainly happens mowing when temps are in the 80's/low 90's. I don't have restarting issues mowing in the fall when temps are in the 60's and 70's. Any suggestions? I can live with it, however, it is a nagging issue. AI is suggesting starter/solenoid or valve adjustment which I can do, however, I was hoping to get some expert advice here instead of going down the AI rabbit hole. Thanks everyone.
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Old 08-13-2026, 06:30 PM
Grandpa53 Grandpa53 is offline
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Join Date: Dec 2019
Location: Minnesota
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Have you made sure there is no trash/debris behind or underneath the tins blocking airflow?
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.

MTD Products, Inc. of Cleveland, Ohio purchased the Cub Cadet brand from International Harvester in 1981. Cub Cadet was held as a wholly owned subsidiary for many years following this acquisition, which allowed them to operate independently. Recently, MTD has taken a more aggressive role and integrated Cub Cadet into its other lines of power equipment.

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