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#1
06-08-2024, 01:31 PM
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Over reving onan
Guys, I’m stuck in need need help. About a year ago, I took my onan out of my 1914 To replace the starter. I put it all back together and it ran like a dream. However, about 30% of the time when I start it up the engine revs Like it’s Going to blow up. I can control it by pulling the throttle all the way to slow, but I only get about a quarter inch of movement on the throttle stick before it’s at wide open throttle. There are times where I can shut the engine off, Not touch the throttle , Wait a minute and start it back up and it’ll run perfectly fine again. I’ve taken the air cleaner off several times to try and Find some sort of a problem In the linkage but I just can’t find anything. I’ve never experienced anything like this before with an engine. Anybody have any ideas?
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Regards, Adam Proud owner of "Big Al" Cub Cadet 1914 
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#2
06-08-2024, 10:52 PM
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Since you say you pulled the engine, you must have disconnected the throttle cable. Therefore, I would look and make sure the outer throttle cable sheathing is properly attached. And check that the governor linkage hasn't been compromised.
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Two 125's and a 124 all with 42" decks Plow blade #2 Cart QA36 snowthower
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#3
07-16-2024, 11:22 PM
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The Onans have a flyball governor, and they have been known to loosen up over time and cause all kinds of erratic governor behavior. There is an updated spacer that prevents overspeeding if the spacer slips on the camshaft. This may be what is happening to yours.
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http://www.solunagarage.com
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| 1914, carb, onan, super, throttle |
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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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