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Old 06-03-2017, 07:55 PM
martyrant martyrant is offline
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Join Date: Nov 2012
Location: Maine
Posts: 124
Default 1250 Coming to a crawl / stalling out under load

It's been a while since I've been on here but poked around briefly before posting this and noticed a lot of familiar faces still posting, so hello to everyone again.

I had someone rebuild the engine in my 1250 a couple years ago and once I got it back in the tractor and hooked it up, things looked good until I started to try to use it like I normally would (beat the hell out of it, put it through the runner, etc.) and it would begin to crawl, then eventually stall out.

I feel like this is a self-inflicted problem and honestly hadn't gone back to it until recently when I had some time, so I got it running again today, fixed my silly PTO issue (one of the cables running to a fuse fell off the spade connector), and started to get something hooked up to it to test with (threw a agrifab rake on it for now), realized my hydraulic levers are frozen and need to go about getting those freed up, but on to the issue:

I can't remember if it really had this much thrashing/movement to it at idle [I do know the exhaust hood is missing some screws that adds to the drama on the thrashing], but it goes away a bit at higher throttle, however I noticed it throttling up/down just sitting there, opened the hood and noticed it was doing just that. I've messed with the throttle cable a couple times to shorten it up/lengthen it and still have this issue, but I think this would also cause some issues when I'm actually trying to use it (leveling the driveway with the box blade would even stall it after about 15-20 feet).

Would this most likely be the cause of my woes? Any good ideas on how to fix this? I feel like I may have reassembled it wrong, I noticed the spring at the bottom when the throttle is at low is slack, though it is taut when at high throttle.

Video of it running and me putting my finger on the throttle to hold it there:

https://goo.gl/photos/HaTVY4hboTGhgg8M8

Going to try and figure it out tomorrow as it's getting dark now, but I have a feeling this is at least the start of fixing the issues.

Thanks in advance for any insight.
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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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