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Rubber Side Down!
› Off-throttle to idle issue
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Off-throttle to idle issue (Read 28 times)
Dr_Jim
Ex Member
Re: Off-throttle to idle issue
Reply #15 -
11/01/07 at 10:07:21
-
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«
Last Edit: 12/23/07 at 10:21:03 by Dr_Jim
»
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toddlamp8
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Re: Off-throttle to idle issue
Reply #16 -
11/01/07 at 11:39:20
Thanks for the replys. I'm running a stock 86 carb with the 155 jet. There is only one way to install the clip so I know I didn't screw that up. I also recently installed a HD Dyna muffler and made no modification to the white spacer. The fuel lineis new. I will check the vacuum line tonight to see if it is damaged.
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Dynobob
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Re: Off-throttle to idle issue
Reply #17 -
11/01/07 at 12:43:20
toddlamp8 wrote
on 12/31/69 at 16:00:11:
I also recently installed a HD Dyna muffler and made no modification to the white spacer.
I don't think an 86 has the white spacer. I could be wrong
With multiple grooves on the needle, it's not needed. I think the white spacer was added later to lean out the carb for those EPA folks. It also prevents the user from richening their carb.
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toddlamp8
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Re: Off-throttle to idle issue
Reply #18 -
11/01/07 at 12:51:45
When I look at the microfiche on RonAyers.com for the 86 carb the spacer is there.
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Trippah
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Re: Off-throttle to idle issue
Reply #19 -
11/01/07 at 15:05:37
What a wonderful day at work
I think everyone is focused on the carb- which is reasonable. As a question, if the clutch load/no load IS the determining factor, would engine compression be an issue? If not under load, the engine should increase in revs..but if the compression wasn't right, wouldn't it fail to suck gas throught the carb? As a 61 year old newbie to mechanics, it is so daarrn confusing.
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toddlamp8
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Re: Off-throttle to idle issue
Reply #20 -
11/01/07 at 15:11:53
On the way to work today I tried different RPMs and even at ~2500RPMs when the clutch was pulled in the RPMs dropped to ~750. It seems like the higher the RPMs i'm at when I pull the clutch lever the lower they drop before returning to a proper idle.
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barry68v10
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Re: Off-throttle to idle issue
Reply #21 -
11/01/07 at 15:15:01
My experience suggests that you're dealing with a rich mixture, but I don't see how that's possilble unless you simply have a worn out carb in dire need of replacement...
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petc0ck mod, white spacer removed, 150 main jet, 12.5" shocks, 16" turnout muff, oil cooler mod, chain conversion, Tkat brace, external fuel filter, fuel screen removed...
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toddlamp8
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Re: Off-throttle to idle issue
Reply #22 -
11/01/07 at 15:59:15
Would that have something to do with the pilot screw? I noticed that when I would adjust it the idle speed barely changed no matter how far in or out (unless it was all the way in, then it died). The oring is fine, just replaced actually.
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toddlamp8
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Re: Off-throttle to idle issue
Reply #23 -
11/01/07 at 16:34:50
Ok, well I took the advice of the forum, and went outsideto adjust the pilot screw in a little to lean out the idle and guess what, IT WORK! Preliminary tests show that my idle returns to where it should (pretty close at least). I'll see how it does on the highway ride home from work.
Thanks for the help!
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barry68v10
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Re: Off-throttle to idle issue
Reply #24 -
11/01/07 at 19:17:53
toddlamp8 wrote
on 12/31/69 at 16:00:11:
Ok, well I took the advice of the forum, and went outsideto adjust the pilot screw in a little to lean out the idle and guess what, IT WORK! Preliminary tests show that my idle returns to where it should (pretty close at least). I'll see how it does on the highway ride home from work.
Thanks for the help!
Oh, good. I guess I somehow missed the fact that you had adjusted the pilot screw...glad things seem to be fixed! Enjoy!
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petc0ck mod, white spacer removed, 150 main jet, 12.5" shocks, 16" turnout muff, oil cooler mod, chain conversion, Tkat brace, external fuel filter, fuel screen removed...
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toddlamp8
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Re: Off-throttle to idle issue
Reply #25 -
11/02/07 at 11:22:15
Well it's kinda-sorta fixed. I may have adjusted it too much because I was shooting flames out everytime I came off the throttle!
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vtail
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Re: Off-throttle to idle issue
Reply #26 -
11/02/07 at 11:29:15
Paladin. wrote
on 12/31/69 at 16:00:10:
Down to 800 and back
up
to idle? I'm idling at about 600!!
From what I get Idle should be about 1200 as to get anough oil pressure to get oil to the cam. Most other stuff runs on roller or needlebearings and can servive on splash-oil
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'07, White spacer REMOVED, 152,5 main jet, K&N drop-in filter, Mac exh, Sigma 906, ENM PT15B2 tach, factory s bags, shield, backrest/lug rack, crashbar, Kuryakyn 7980 ext hwy pegs,412-4233C+'09 C50T
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