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  #1  
Old 01-04-2014, 09:15 PM
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1811woody 1811woody is offline
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Location: IL
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Default The 1872 starts very hard, why?

When first trying to start the cub after it sat for about a week I cranked and cranked and cranked... occasionally it would try to start and then kick the starter out with out starting. I checked the fuel filter it was full of fuel I lightly pressurized the tank to get fuel to the carb still no start. As a last resort I gave it a shot of ether still didn't start until I gave it a few more shots then it finally hit but acted as though it was really starved for gas (barely running) but finally took off and ran good. I let it run for a few minutes turned it off and checked the spark plugs one was gapped at .035 the other at .025 I gapped them both at .025 like kohler specs said. They were a little carboned up but over all looked to be in good shape with no signs of oil fouling, to lean etc.The electrode was like new. I then grounded them to the block and turned the engine over they have a nice blue spark. You would think if it were a fuel problem then it would have started when I first sprayed it with ether and if it were a spark problem then I wouldn't have the good blue spark. When its running it purrs like a kitten and when I give it the throttle it roars like a lion. What am I missing, what are some of the issues that the magnums had as far a starting problems.
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  #2  
Old 01-04-2014, 10:08 PM
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ken6x6 ken6x6 is offline
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looks like your cub caught the 1872 flu that's been going around. i think your the 4th member i've seen in the past 2 weeks with the same issue.

i hope mine doesn't catch it.
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  #3  
Old 01-04-2014, 10:28 PM
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1811woody 1811woody is offline
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It wasn't to long ago I was telling that to A Cecil. I think there is something going around it must be getting spread through this forum LOL. Good luck with yours.
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Old 01-04-2014, 10:40 PM
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ACecil ACecil is offline
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Something definitely going around with the 1872's. My buddy checked today and my 1872 hardly had any spark. Going to have the ignition module replaced.
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Old 01-05-2014, 12:49 AM
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1811woody 1811woody is offline
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Did that cause it to be a yellowish spark or was still a good blue spark?
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  #6  
Old 01-05-2014, 01:25 AM
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inspectorudy inspectorudy is offline
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My experience similar to yours turned out to be crud in the tank, line and carb. Not enough to keep from running but enough to make it real hard to start and make it run hot due to being lean. Buy a new plug but check the fuel and carb too. Get a good clear glass jar and let all of the gas drain into it and let it sit for a day to see if you have any sediment in it. Do it before the filter just to be sure that it is there or not. Then if it is, clean and flush the tank, get a new fuel line/filter and clean the carb and all of it's orifices.
Good luck
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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.

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