Author Topic: Gotdang Intake leak  (Read 1036 times)

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Offline JW113

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Re: Gotdang Intake leak
« Reply #25 on: September 18, 2020, 08:32:18 AM »
The only things exposed at idle should be the idle jet hole, which is closest to the exit of the carb, and just the end of the first transfer port, which should be just under the edge of the throttle plate. If all exposed, you have essentially lost all idle mix control, as the transfer ports are feeding fuel to the engine. So I am assuming you need to turn the idle speed screw on the throttle level that far to get the bike to idle at 1000rpm, yes?

Again, what cam are you using?

-JW
2004 FLHRS   1977 FLH Shovelhead  1992 FLSTC
1945 Indian Chief   1978 XL Bobber

Offline PJultra

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Re: Gotdang Intake leak
« Reply #26 on: September 18, 2020, 09:39:32 AM »
The only things exposed at idle should be the idle jet hole, which is closest to the exit of the carb, and just the end of the first transfer port, which should be just under the edge of the throttle plate. If all exposed, you have essentially lost all idle mix control, as the transfer ports are feeding fuel to the engine. So I am assuming you need to turn the idle speed screw on the throttle level that far to get the bike to idle at 1000rpm, yes?

Again, what cam are you using?

-JW

Yes, I do have to turn the idle speed screw in farther to get it to idle.
The cam is the EV-13. And as a reminder, this was an EFI bike. The only other mods are the 2 into 1 exhaust and a stage 1 air cleaner.

Offline JW113

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Re: Gotdang Intake leak
« Reply #27 on: September 18, 2020, 02:03:32 PM »
Got it. EV-13 should not cause enough intake backflow of any concern. Something else is amiss.

What intake manifold are you using with this carburetor?

-JW
2004 FLHRS   1977 FLH Shovelhead  1992 FLSTC
1945 Indian Chief   1978 XL Bobber

Offline PJultra

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Re: Gotdang Intake leak
« Reply #28 on: September 18, 2020, 03:08:19 PM »
Got it. EV-13 should not cause enough intake backflow of any concern. Something else is amiss.

What intake manifold are you using with this carburetor?

-JW

P/N 27019-89

Offline Deye76

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Re: Gotdang Intake leak
« Reply #29 on: September 19, 2020, 05:41:04 AM »
That part # listed for a 84-86 model? Yours is 98? Might be your problem. Of course can't believe everything on the internet. :nix:
« Last Edit: September 19, 2020, 05:58:48 AM by Deye76 »
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2014 CVO RK, 2015 RGS, 1992 FXRP

Online Hossamania

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Re: Gotdang Intake leak
« Reply #30 on: September 19, 2020, 07:31:34 AM »
Same intake # for '98, with an "A" suffix, according to Ronnies.
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Offline Burnout

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Re: Gotdang Intake leak
« Reply #31 on: September 23, 2020, 08:47:03 AM »
I think a 98 may have had a MAP sensor on the intake? That would be the difference.
They don't call me Ironhead Rick just because I'm "hard headed"

Online Hossamania

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Re: Gotdang Intake leak
« Reply #32 on: September 23, 2020, 09:06:38 AM »
That makes sense.
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