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Old 04-28-2017, 02:00 AM   #1
SBJ
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Default 2-stroke carb cleaner

What's up everybody? Got a question about cleaning the carburetor on a little 2 stroke motor. My chainsaw bit the dust and is going in the garbage (in pieces) so I picked up another used one cheap. It starts and idles fine but will bog down and stall if I apply the throttle abruptly. I can get it up to full RPMs if I apply the throttle gently but it will still want to bog down at full throttle. It has fresh gas in it and I have cleaned the air and fuel filters. I suspect the carb is dirty. Long story short...carbs and I don't play well together. Every time I try to adjust one or take it apart for cleaning it always ends up running worse than before I started. I have learned to accept that as one of my shortcomings and would rather buy a new one than try to mess with it. Are there any good additives for the fuel I can put in to clean it without digging into it? I reset the clearance on the magneto with a matchbook (it was pretty far back from the flywheel) and will replace that shitty champion plug that's in there. Also, I will run fuel stabilizer since I find most yard equipment doesn't like ethanol.
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Old 04-28-2017, 03:06 AM   #2
cadillacdude1975
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i have had tood luck with both seafoam and valvoline synpower spray cleaner. i dont know if valvoline even makes the synpower stuff anymore.
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Old 04-28-2017, 03:08 AM   #3
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Thanks man, I will try a little seafoam in it and see if it works.
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Old 04-28-2017, 03:09 AM   #4
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it probably has some crap stuck in the jet. that is the usual culprit with those small carbs.
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Old 04-28-2017, 03:11 AM   #5
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Ah. If that's the case I might just buy a new one for it. Last I checked those little walbro carbs are pretty cheap and I'll spend more than that trying to get it to work lol. Why do I always have to try turning the screws to see what happens? Why can't I just leave them alone?

EDIT: New carb has been ordered. Not even gonna mess with it.

Last edited by SBJ; 04-28-2017 at 03:23 AM.
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Old 04-28-2017, 06:35 PM   #6
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Quote:
Originally Posted by cadillacdude1975 View Post
it probably has some crap stuck in the jet. that is the usual culprit with those small carbs.
Well the new one won't be here for a couple weeks so I might try to mess around with it. I'd like to get some work done since there are still a lot of tree branches lying around that came down in the storms this winter. I think it is clogged since it will run if I pour gas directly into the spark plug hole. Man I hate carbs.
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