At my wits end with bad idle on a DCOE!
#1
MG Midget /w 12a
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At my wits end with bad idle on a DCOE!
I have a SP 12a /with a DCOE 45. I can't for the life of me get it to idle smoothly. Un-even idle that goes between 750-950 RPM.
Anything more than 1/4 throttle and it runs great. Also great on the freeway, but I cant get it to idle well. I'm using 65f9 jets but I've also tried 55f9 and 70f8. All seem to do that same thing.
I've checked plugs, dizzy, fuel pressure, trimming etc. Out of ideas! Please help.
Anything more than 1/4 throttle and it runs great. Also great on the freeway, but I cant get it to idle well. I'm using 65f9 jets but I've also tried 55f9 and 70f8. All seem to do that same thing.
I've checked plugs, dizzy, fuel pressure, trimming etc. Out of ideas! Please help.
#2
Waffles - hmmm good
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I think Wacky will be able to give the definitive answer here but its probably just the
adjustment of the idle air jets screws. Also you may need to up the idle a bit as a
ported motor is going to be a bit lumpy at low rpms anyway.
I have my Dell on a stock port 12a idling @900 rpm because its gets too lumpy any
lower.
adjustment of the idle air jets screws. Also you may need to up the idle a bit as a
ported motor is going to be a bit lumpy at low rpms anyway.
I have my Dell on a stock port 12a idling @900 rpm because its gets too lumpy any
lower.
#3
MG Midget /w 12a
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I think Wacky will be able to give the definitive answer here but its probably just the
adjustment of the idle air jets screws. Also you may need to up the idle a bit as a
ported motor is going to be a bit lumpy at low rpms anyway.
I have my Dell on a stock port 12a idling @900 rpm because its gets too lumpy any
lower.
adjustment of the idle air jets screws. Also you may need to up the idle a bit as a
ported motor is going to be a bit lumpy at low rpms anyway.
I have my Dell on a stock port 12a idling @900 rpm because its gets too lumpy any
lower.
#4
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is it idleing on the idle circuit? the throttle stop screw (its NOT the idle speed screw!) should be about 1/2 turn in, other wise you will be idling on the 1st transition hole, which makes the idle mixture screws useless.
http://www.tjwakeman.net/TR/WeberDCOEinfo.htm#idle
http://www.tjwakeman.net/TR/WeberDCOEinfo.htm#idle
#5
Waffles - hmmm good
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Not the idle speed adjust screw. I'm referring to the idle air mixture adjustment
screws. I have a Dell so I don't know the weber terminology or their exact location
to advise you.
Earth to Wacky, are you there?
screws. I have a Dell so I don't know the weber terminology or their exact location
to advise you.
Earth to Wacky, are you there?
#6
MG Midget /w 12a
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is it idleing on the idle circuit? the throttle stop screw (its NOT the idle speed screw!) should be about 1/2 turn in, other wise you will be idling on the 1st transition hole, which makes the idle mixture screws useless.
http://www.tjwakeman.net/TR/WeberDCOEinfo.htm#idle
http://www.tjwakeman.net/TR/WeberDCOEinfo.htm#idle
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