Hawk 250 jets

ckrug4 · 06-28-2016, 06:42 AM

Hawk 250, mikunni carb,
if I remove cat, what jets will I likely need to go to?
I'm mostly on street.

Azhule · 06-28-2016, 09:17 AM

Hard for anyone to narrow things down for you without knowing your specific altitude

pcspecialist · 06-28-2016, 11:23 AM

Need to know if you opened up the airbox and also altitude you plan on riding at before I could even begin to recommend jet size.

ckrug4 · 06-28-2016, 12:44 PM

Has been opened up considerably. Still retains stock style filter. It could easily be modified further accordingly. I'm at about 600' , Nashville TN area. Won't likely get much higher.
I've got the pipe and welder ready.

Sport Rider · 06-28-2016, 01:58 PM

I'm running a 117.5 main and 30 pilot jet with an aftermarket air pod intake. I'm running a little rich. I'm at about 800 elevation. with cat removed, I might be in a little better shape. I'd stick with the 115/30 at first and adjust from there.

ckrug4 · 06-28-2016, 04:18 PM

Thnx. I'll double check what I have. Pretty sure it's what ever most commonly recommended

w0ss · 06-28-2016, 04:25 PM

I have a 130/27.5(down from a 30) and I have a new exhaust and pod filter. Still not running perfect for me. I think each engine is different and you will get slightly different answers. Also mileage matters. I am just under 500 miles so fully broken in yet.

Sport Rider · 06-29-2016, 10:21 AM

Quote:

Originally Posted by w0ss

I have a 130/27.5(down from a 30) and I have a new exhaust and pod filter. Still not running perfect for me. I think each engine is different and you will get slightly different answers. Also mileage matters. I am just under 500 miles so fully broken in yet.

rally good point. I'm at about 750 miles now and it keeps improving. I was riding with Mark on some N.GA mountains and his hawk was maintaining on uphill grades better than mine.

zingshoen · 06-29-2016, 10:33 AM

115/25 works well with the nitrohead racing muffler (short wide header w/out muffler but a flute insert), 30 is a little rich, perhaps 27 would be ideal.

w0ss · 06-29-2016, 10:40 AM

No idea why I said 130/27.5 I am really running 115/27.5

ckrug4 · 06-29-2016, 10:40 AM

Gained 2 mph after removing cat.
It was worth doing

06-28-2016, 06:42 AM	#1
ckrug4 Join Date: May 2016 Posts: 21	Hawk 250 jets Hawk 250, mikunni carb, if I remove cat, what jets will I likely need to go to? I'm mostly on street.
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06-28-2016, 09:17 AM	#2
Azhule Join Date: Dec 2015 Location: CO Posts: 1,525	Hard for anyone to narrow things down for you without knowing your specific altitude __________________ "Think as you like... but this self proclaimed Professor is always right" - Buckshot "You never know what someone is hiding beneath their smile..." - NinjaTom - R.I.P.
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06-29-2016, 10:33 AM	#9
zingshoen Join Date: Jun 2009 Location: Brisbane, Queensland, Australia Posts: 648	115/25 works well with the nitrohead racing muffler (short wide header w/out muffler but a flute insert), 30 is a little rich, perhaps 27 would be ideal. __________________ 1971 Garelli Gulp 50cc with open ports and 16 mm Bing Carbie + 1980 Honda XL 223 ZS + 2007 Zongshen LZX200G + DR400SM
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06-28-2016, 11:23 AM	#3
pcspecialist Join Date: May 2016 Posts: 583	Need to know if you opened up the airbox and also altitude you plan on riding at before I could even begin to recommend jet size.
	0

06-28-2016, 12:44 PM	#4
ckrug4 Join Date: May 2016 Posts: 21	Has been opened up considerably. Still retains stock style filter. It could easily be modified further accordingly. I'm at about 600' , Nashville TN area. Won't likely get much higher. I've got the pipe and welder ready.
	0

06-28-2016, 01:58 PM	#5
Sport Rider Join Date: Jan 2016 Location: Mooresville NC Posts: 2,038	I'm running a 117.5 main and 30 pilot jet with an aftermarket air pod intake. I'm running a little rich. I'm at about 800 elevation. with cat removed, I might be in a little better shape. I'd stick with the 115/30 at first and adjust from there.
	0

06-28-2016, 04:18 PM	#6
ckrug4 Join Date: May 2016 Posts: 21	Thnx. I'll double check what I have. Pretty sure it's what ever most commonly recommended
	0

06-28-2016, 04:25 PM	#7
w0ss Join Date: May 2016 Posts: 231	I have a 130/27.5(down from a 30) and I have a new exhaust and pod filter. Still not running perfect for me. I think each engine is different and you will get slightly different answers. Also mileage matters. I am just under 500 miles so fully broken in yet.
	0

06-29-2016, 10:40 AM	#10
w0ss Join Date: May 2016 Posts: 231	No idea why I said 130/27.5 I am really running 115/27.5
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