KristofMI
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Kawasaki FE350D dies when I press on accelerate pedal to fast
So I put a brand new OEM carb on that motor. Right now when I press on gas pedal too fast it will die. I have to press it slow enough and it will run fine. I assume the problem is air/fuel mixture. What do I need to adjust?
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SRTsFZ6
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/13 16:51:03
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If you partially choke the carb, will it then accelerate as it should?
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KristofMI
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/13 19:36:13
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I just tried and if I pull the choke out a little it runs good even if I press on the gas fast
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SRTsFZ6
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/13 21:50:12
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Did you have this issue before you put the new OEM carb on? Has it always done this, or the machine new to you? Ok, that confirms a lean condition on the fuel mix (or an air leak between the carb and head) as your richening the mix with the choke partially on. Being it's a new carb and likely no restrictions it sounds like the main or other carb jet is too small. Unfortunately, nowadays, engines are adjusted to running lean for cleaner air. There are many sub #'s for your engine, can you post it? .
post edited by SRTsFZ6 - 2024/03/13 21:58:24
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KristofMI
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/14 07:36:33
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All it says on the engine sticker is FE350D-BS25
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SRTsFZ6
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/14 07:39:53
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Did you have this issue before you put the new OEM carb on?
Has it always done this, or the machine new to you?
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KristofMI
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/14 07:46:51
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It's new to me. I won it at local auction. Whoever owned it before used OEM carb but there are two of them for this engine. And he used wrong one. Also they used liquid gasket instead of OEM gaskets. Before it was running erratically.
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SRTsFZ6
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/14 07:59:49
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Being it's new to you, I'd remove the intake manifold, CLOSLY inspect it for cracks
deformation, lack of gaskets or improper, etc.
You can also spray carb cleaner in that area, while running and listen for any changes
in RPMs. That'd indicate an air leak narrowing down the issue / an issue..
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SRTsFZ6
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/14 08:03:26
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KristofMI
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/14 09:59:12
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Later on after work I will spray it with the carb cleaner and report back the results. Intake manifold and all the gaskets are brand new. I replaced everything with new carb
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KristofMI
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/14 19:08:55
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Okay I sprayed the carb cleaner everywhere in the carb area and revs don't change
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SRTsFZ6
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/14 19:24:02
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Well, I'm suspecting the carb is simply jetted too lean then if everything else is checking out.
As you have several spare carbs, I'd remove the main jet from one to "open up".
E-Bay has jet drill bits for pretty cheap and you'll also need the handle end to hold the bit.
They ARE VERY SMALL and fragile. Once you have your new tools, slide the main jet over the bit
that fits best. Then, go up one or two sizes with the drill bits. Slow and steady and the drill will
open the jet...
Put the jet back in, re-assemble and see how the engine behaves.. It may need further drilling..
Please post back how it goes...
.
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KristofMI
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/18 08:20:54
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SRTsFZ6
Well, I'm suspecting the carb is simply jetted too lean then if everything else is checking out.
As you have several spare carbs, I'd remove the main jet from one to "open up".
E-Bay has jet drill bits for pretty cheap and you'll also need the handle end to hold the bit.
They ARE VERY SMALL and fragile. Once you have your new tools, slide the main jet over the bit
that fits best. Then, go up one or two sizes with the drill bits. Slow and steady and the drill will
open the jet...
Put the jet back in, re-assemble and see how the engine behaves.. It may need further drilling..
Please post back how it goes...
.
Do I really need to do that? If that's the case why others don't have to drill the main jet?
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SRTsFZ6
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Re: Kawasaki FE350D dies when I press on accelerate pedal to fast
2024/03/18 08:29:31
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You don't have to do anything..
With what you've posted, that's how I would proceed.
I will note that some machines, as they age, they require slightly more fuel
as the EPA has them set on the lean side. A new carb is no different..
If un-comfortable with it, let a competent shop look at it..
.
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