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  #1  
Old 05-14-2015, 09:16 PM
homebuilt homebuilt is offline
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Default 16 HP Vanguard, surge

I've got my engine up and running, and it runs great when i'm working her. however when just moving around the yard I have a surge. is there a common issue with these engines? if not i'll have to start searching a little harder.
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Old 05-15-2015, 06:49 AM
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They tend to be jetted lean on the slow speed jet. You'll probably need to remove the plastic cap at the back of the carb that prevents you from adjusting it.
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Old 05-15-2015, 09:22 PM
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I've noticed they have better torque when you leave the choke on a little bit. I've done some drilling in a couple areas of those carbs to get more fuel
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Old 05-15-2015, 09:58 PM
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It could be a vacuum leak between the carb and engine. I had a B&S 16.5hp IC that did the exact same thing you described. I put a thin layer of RTV on both ends of the plastic intake tube between the carb and engine and the surge went away.
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Old 05-16-2015, 08:04 AM
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I appreciate the comments. I hope to check it out today
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Old 05-16-2015, 10:02 AM
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spray carb cleaner or ether around the intake to see if you have a leak . you'll hear a engine rpm change if you have one
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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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