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Old 09-05-2013, 07:47 AM
vartz04 vartz04 is offline
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Location: IL
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Default 104 starts idles for 5 seconds them dies

I've gotten every kink worked out of my 104 but this one.

When cold I'll set the throttle a little over idle. Choke it crank it and it fires up and runs for 5 seconds or so. It then sputters and dies. That'll happen 2-3 times then it will run.

Also when revving it up when cold it will sometimes die or have a very delayed response. My guess is the carb. I haven't been able to determine what screw does what on my walbro carb. Is the lower screw hi speed or low speed?
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Cub 104 Refurbed Sprinig of 2013

Aftermarket headlights, 3 point, Brinly Adapter, Spring Assist, 42" IH Blade, 42" Mower Deck, 42" Craftsman Grader Blade, 10" Brinly Plow, 6-12 ags and 22x9.50 turfs
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Old 09-05-2013, 07:57 AM
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dvogtvpe dvogtvpe is offline
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if its the one on an angle that's the idle. adjust that out to richen it, that should help with your problem.
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Old 09-05-2013, 08:49 AM
vartz04 vartz04 is offline
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I'll give it a shot. Just to be clear it runs fine after I get it going and it will Idle decent once it's going
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Cub 104 Refurbed Sprinig of 2013

Aftermarket headlights, 3 point, Brinly Adapter, Spring Assist, 42" IH Blade, 42" Mower Deck, 42" Craftsman Grader Blade, 10" Brinly Plow, 6-12 ags and 22x9.50 turfs
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Old 09-05-2013, 09:28 AM
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dvogtvpe dvogtvpe is offline
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engine fuel needs change as it starts to heat up, you could actually be slightly lean when you are at operating temp at idle. when you tune a carb there's give and take there . just because the engine runs don't mean the carb is set correct. you would be surprised to see an engine on a dyno run with exhaust temps at 1500 deg vs 1300 deg, it runs & sounds good both ways but numbers will make you a believer
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