 What would you suggest?
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Joined: May 2009
Posts: 96
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OP
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Joined: May 2009
Posts: 96 |
I have my jetting dialed in according to Dinqua's calculator, but since wrapping my headers I'm getting a lean pop when I come off the throttle at freeway speeds. Since I'm mostly on the needle at that point would you suggest upping the needle by one shim? or do you think I should up my mains by a couple of points. Thanks in advance for any advice.
'04 Speedy. Emgo 19" turn-outs, Polaris bellmouth, 142/45 Thrux needles, 3.5 turns. Pod filters My Bike
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Re: What would you suggest?
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Joined: Feb 2008
Posts: 2,671 Likes: 15
Loquacious
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Loquacious
Joined: Feb 2008
Posts: 2,671 Likes: 15 |
I suggest leaving the main jets alone. If anything, maybe 45 pilots & adjust the screws accordingly.
Or, try one .5mm shim & leave everything else alone. That would be the easist to do.
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Re: What would you suggest?
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Joined: Jan 2005
Posts: 11,126 Likes: 13
Should be Riding
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Should be Riding
Joined: Jan 2005
Posts: 11,126 Likes: 13 |
Quote:
...I'm getting a lean pop when I come off the throttle at freeway speeds. Since I'm mostly on the needle at that point...
you're on the idle circuit. whereas you were on the midrange/mains er on the needle at freeway speed. A little popping is alright. however if it bugs you, try starting with turning out the air mixture screws 1/4 turn each.
Blowing gravel off rural roads
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Re: What would you suggest?
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Joined: Feb 2008
Posts: 2,671 Likes: 15
Loquacious
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Loquacious
Joined: Feb 2008
Posts: 2,671 Likes: 15 |
He's already 3.5 turns out, and the needle height will make a difference.
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Re: What would you suggest?
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Joined: Jan 2005
Posts: 11,126 Likes: 13
Should be Riding
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Should be Riding
Joined: Jan 2005
Posts: 11,126 Likes: 13 |
"'04 Speedy. Emgo 19" turn-outs, Polaris bellmouth, 130/42 Thrux needles, 3.5 turns. "
gotcha. That's close to my setup. DnDs, 130/42, polaris, tbs needles, one shim, close to 3.5 turns. And I want 45s...
Given the thrux needle, like you +1, i'd suggest he try the 45 pilots at 2 turns no shims first. I take it the main is fine. The midrange is fine. Thus the pilot change only.
Blowing gravel off rural roads
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Re: What would you suggest?
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Joined: Jan 2008
Posts: 1,174 Likes: 15
Learned Hand
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Learned Hand
Joined: Jan 2008
Posts: 1,174 Likes: 15 |
I agree, the 45 pilot first. should fix it right up
05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter
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Re: What would you suggest?
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Joined: Feb 2007
Posts: 23,225 Likes: 62
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,225 Likes: 62 |
Quote:
I agree, the 45 pilot first. should fix it right up
+1
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: What would you suggest?
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Joined: Mar 2009
Posts: 520
Adjunct
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Adjunct
Joined: Mar 2009
Posts: 520 |
Quote:
Quote:
I agree, the 45 pilot first. should fix it right up
+1
+1
2005 America 145 mains, , #48 pilots, , k&n pod filters, ported intakes manifolds, nology coils and wires, pro com CDI, 62 HP at wheel 68,000 hard miles still runs great gone "traded"
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Re: What would you suggest?
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Joined: May 2009
Posts: 96
Member
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OP
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Joined: May 2009
Posts: 96 |
I shimmed the needles this morning and it helped. It also took care of a flat spot I had in my midrange. I'm still going to go with the 45s. It just makes sense.
'04 Speedy. Emgo 19" turn-outs, Polaris bellmouth, 142/45 Thrux needles, 3.5 turns. Pod filters My Bike
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Re: What would you suggest?
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Joined: Feb 2008
Posts: 2,671 Likes: 15
Loquacious
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Loquacious
Joined: Feb 2008
Posts: 2,671 Likes: 15 |
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