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  #1  
Old 08-09-2025, 06:34 PM
CVACUB CVACUB is offline
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Location: Virginia
Posts: 26
Default 122 CC won’t start

Hello all
Hopefully someone can help me get my cub to start

Back story
Bought 122 with no spark cheap
Turns out they wired the coil backwards + to feed in
Neg to points and no condenser

Replace wiring harness since it had seen better days
Brand new battery on charger so I know it’s good
New coil wired correctly
New carb with 2 turns out from bottomed out on high speed
Idle screw 1.5 turns from bottomed out
New plug
New plug wire
New carb to block gasket
New points and condenser
New fuel and filter


She kicks no problem with Ether but dies once ether is burned off
It’s like she isn’t getting fuel
Now I’m running the fuel line between the coil and the carb down under the carb and feed from below on the points side of the carb. I figure gravity will definitely feed since carb is below the gas tank and The bowl is full

CAN SOMEONE PLEASE TELL ME WHAT IM MISSING
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  #2  
Old 08-09-2025, 07:40 PM
Grandpa53 Grandpa53 is offline
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Location: Minnesota
Posts: 97
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You can use a spray bottle with gas and spray in carb opening as you crank it over and if it runs on that then you need to disassemble carb and clean. It would be advisable to do this outdoors since a backfire could make things interesting in a hurry.
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  #3  
Old 08-09-2025, 07:57 PM
CVACUB CVACUB is offline
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It’s a brand new carb. Received it in the mail yesterday so I doubt it needs rebuilding and spraying gas into a carb is not something I would ever do
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  #4  
Old 08-09-2025, 08:07 PM
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CubDieselFan CubDieselFan is offline
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Pictures would help us, help you better.
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  #5  
Old 08-09-2025, 08:28 PM
Grandpa53 Grandpa53 is offline
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Didn't say anything about REBUILDING the carb. You need to make sure the passages in the carb are open. If you are using a Chinese knockoff for a carb the passages could very well be plugged. It's your tractor but the quickest way to know if it's the carb is to squirt gas in the carb. Or waste a bunch of time trying to figure it out other ways.
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  #6  
Old 08-09-2025, 08:38 PM
Ambush Ambush is offline
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If it runs on ether, then you have spark. That leaves fuel. The float could be stuck in your new carb, or a line plugged. Is there gas to the carb if you pull the hose off there? If so, is the bowl full?
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  #7  
Old 08-09-2025, 09:15 PM
CVACUB CVACUB is offline
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Grandpa53 sorry if I came off harsh it wasn’t meant to When I was a young man I did spray gas in a carb on a push mower it backfired and that lead to the mower catching on fire and a 4x4 burn patch in my parents front lawn needlessly to say when dad got home I didn’t sit for a week. I’m also old school you buy something and it’s supposed to work WITHOUT issues and without me having to check some morons work that he was paid to perform so tomorrow I will check it out rip it down and see if I got a Monday hangover carb. Thank you for your help

To answer OP question it states the bowl is full and now I’m going to fill a bowl and relax
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  #8  
Old 08-10-2025, 10:06 PM
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darkminion_17 darkminion_17 is offline
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This most likely your problem.


She kicks no problem with Ether but dies once ether is burned off
It’s like she isn’t getting fuel
Now I’m running the fuel line between the coil and the carb down under the carb and feed from below on the points side of the carb. I figure gravity will definitely feed since carb is below the gas tank and The bowl is full.
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  #9  
Old 08-14-2025, 03:28 PM
CVACUB CVACUB is offline
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So it’s starting and running
Resolved by running gar line right over the carb. She was starving for gas when I ran the gas line under the carb line Thank you to everyone for your guidance
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