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Idle issues

Slate

Well-known member
Steel Soldiers Supporter
682
378
63
Location
Ozona Texas
Just bypassed FDC. New O rings and cleaned a bunch of crap out of HH. Idles 700ish. Runs great but after running a bit and I let off throttle it tries to stumble and die before it come.right back to Idle properly. Have to pull and set throttle up a few clicks to stop stumble when I let off throttle. Any thoughts on starting places besides fuel filters. Thanks

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Jacob2027

Member
65
29
18
Location
Southeast alaska
Just bypassed FDC. New O rings and cleaned a bunch of crap out of HH. Idles 700ish. Runs great but after running a bit and I let off throttle it tries to stumble and die before it come.right back to Idle properly. Have to pull and set throttle up a few clicks to stop stumble when I let off throttle. Any thoughts on starting places besides fuel filters. Thanks

Sent from my moto z3 using Tapatalk
May want to check the booster pump and injectors. What is the condition of the air filter? From my experience with vehicles in general which may not carry over to a duece. It is either a fuel or air issue. Possibly an airless caused by a bad gasket. Hope I am not leading you in the wrong direction. The idea behind the booster pump is if it isn't working then when the ingine spools down the primary might dip lower on fuel pressure due to not having the help when warm.
 

Slate

Well-known member
Steel Soldiers Supporter
682
378
63
Location
Ozona Texas
I saw a video talking about a plug in the side of booster. Has an O ring and a hole in plug that can get clogged up with junk over time. I'll try and check that first. But I may have let some crap in my injectors when I cleaned up HH.

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Broke Down

Member
166
3
18
Location
Pineville,LA
If you checked all of that and it still does it run some fuel additive and a little bit of transmission fluid through it. I fought mine for a month or 2 and a member told me to try that then run the mess out of it. Took it on a drive for 2 hours on some hilly gravel roads and it started running great again. A tad bit of nasty in the fuel system will make you want to pull your hair out.
 
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