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  #1  
Old 08-25-2018, 06:36 PM
Jbo_c Jbo_c is offline
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Default 122 only running sort of great
Picked up a new to me(obviously) 122 this week and it starts and runs great. - sort of.

Using it to pull a little swisher rough cut mower today which should be cake for it. But whenever it’s under any stress (like going up a hill)in second gear, it lugs, acts like it’s going to die- and sometimes does. In first gear it does OK. Third gear is out of the question. On flat land, it does fine in all the gears.

When it dies, I have to wait a minute to crank it back up. Makes me think it’s a Fuel supply issue.

I’ve adjusted the carburetor and even swapped it with a known good one off my 126 and it still acts the same.

Going to replace the fuel filter tomorrow, but what else should I be looking at if that’s not a magic bullet?

Thanks.

Jbo
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Old 08-25-2018, 07:09 PM
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Alvy Alvy is offline
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Hate to ask but does it have enough gas in the tank?

Pull choke and see if it picks up any when issue occurs, if so it’s a fuel supply issue. Maybe tank or sediment bowl screen clogged?

How is the governor adjustment? Top rpm 3600?
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Old 08-25-2018, 07:18 PM
Jbo_c Jbo_c is offline
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Excellent question. Plenty of gas. Choke has zero effect.

Jbo
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Old 08-25-2018, 07:23 PM
Jbo_c Jbo_c is offline
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I’m thinking if the filter is clogged, the choke might not matter much ‘cause it’s not getting fuel anyway.

Thanks.

Jbo
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Old 08-25-2018, 07:27 PM
R Bedell R Bedell is offline
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Quote:
Makes me think it’s a Fuel supply issue.
Sounds like it.
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Old 08-25-2018, 07:40 PM
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Jeff in Pa Jeff in Pa is offline
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Originally Posted by Jbo_c View Post
I’m thinking if the filter is clogged, the choke might not matter much ‘cause it’s not getting fuel anyway.

Thanks.

Jbo
It came from the factory with a sediment bowl. That might need cleaning.
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Old 08-25-2018, 08:01 PM
Jbo_c Jbo_c is offline
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Somebody’s removed the sediment bowl along the way. Just a little pancake style filter now.

Jbo
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Old 08-25-2018, 08:08 PM
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Jeff in Pa Jeff in Pa is offline
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Somebody’s removed the sediment bowl along the way. Just a little pancake style filter now.

Jbo
I highly suggest replacing it with a sediment bowl. Various vendors here have them plus they are available at NAPA and other auto or farm stores.

The thread coming out of the tank is 1/8" NPT

Jeff
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Old 08-25-2018, 08:09 PM
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Clogged filter? Shut-off valve open all the way? Remove the line from the carb and allow fuel to flow into a container. Make sure you good flow.
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Old 08-25-2018, 08:14 PM
Jbo_c Jbo_c is offline
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I have good flow from the filter. (Added a shutoff so fuel briefly went everywhere.

Pardon my ignorance, Jeff, but what’s the advantage of a sediment bowl over or in addition to a fuel filter. Seems to me a fuel filter would be a reasonable replacement for a sediment bowl. ?

Thanks for all the feedback.

Jbo
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