Hawk 250 exhaust

Bmfblackie · 07-22-2015, 07:25 PM

Will a crf 230 exhaust system work on these? Looks like a dead ringer.

chuck · 01-10-2016, 01:11 PM

I was about to ask the same question after all the research,the other bike is the xr150

chuck · 01-16-2016, 05:36 PM

Hi, I just installed a pro circuit t-4 for a 2006 crf230 exhaust, after some modifications the Hawk sounds and rides a lot better.

learnin2fly · 01-16-2016, 10:36 PM

Quote:

Originally Posted by chuck

Hi, I just installed a pro circuit t-4 for a 2006 crf230 exhaust, after some modifications the Hawk sounds like a beast.

Hey Chuck, what kind of mods did you need to do? Did the header
bolt right up? Glad to hear you like it. Thanks!

2LZ · 01-17-2016, 12:38 PM

I'm not sure of your Hawk's pipe configuration but this has always been a good choice and one or Spuds favorites as well, the FMF Turbine Core 2. It's actually a USFS Spark Arrestor but works very well as a muffler on these small displacement motors. They're relatively inexpensive (around 100.00), stainless, repackable, light and again, USFS approved for the back country. I especially like how they sound on the Hondoid pushrod motors like the Hawks share. I have them on my X-Moto, had one on my Qlink (pictured) and now have one on my Tao Tao Rhino ATV.

SpudRider · 01-17-2016, 05:45 PM

Indeed, the FMF Universal Spark Arrestor is also very well manufactured. It will certainly last the life of the motorcycle, and beyond.

chuck · 01-18-2016, 02:46 PM

[QUOTE=learnin2fly;202929]Hey Chuck, what kind of mods did you need to do? Did the header
bolt right up? Glad to hear you like it. Thanks![/QUOTe

chuck · 01-18-2016, 03:50 PM

Hi Learnin2fly,
The header holes has to be widened slightly and the exhaust will mount to the seat mounting bolt. I used 2 pieces of stainless steel plate and some washers.The exhaust mounting bracket is about 3/4 of an inch off,the bike frame prevents the exhaust to line up.
Thanks

chuck · 01-19-2016, 07:07 AM

Hi, I just installed a pro circuit t-4 for a 2006 crf230 exhaust, after some fabrication the Hawk sounds and ride a lot better.

bogieboy · 01-19-2016, 09:09 AM

I installed an FMF powercore 2 on my shineray... very gutsy sounding, but not loud enough to warrant cop trouble...LOL I spliced it into the stock exhaust...only downside is that it doesn't have any form of spark arrester so ot isn't USFS approved...however I think fmf makes an insert that could work for that...

bogieboy · 01-19-2016, 09:12 AM

this was literally right after I rebuilt the top end, jetting is much better now, as well as the electric start working...LOL.

learnin2fly · 01-19-2016, 09:14 AM

Quote:

Originally Posted by chuck

Hi, I just installed a pro circuit t-4 for a 2006 crf230 exhaust, after some modifications the Hawk sounds and ride a lot better.

Looks great Chuck, nice setup. I'll bet your Hawk lost some winter weight also!

chuck · 01-19-2016, 08:34 PM

Thanks, lost about 2-1/2 pounds now I just have to figure out how to rejetted properly it's popping a lot,any advice.
Thanks in advance.

SpudRider · 01-19-2016, 10:49 PM

Quote:

Originally Posted by chuck

Thanks, lost about 2-1/2 pounds now I just have to figure out how to rejetted properly it's popping a lot,any advice.
Thanks in advance.

If the exhaust is popping a lot, the fuel mixture is lean. I'm betting you need a larger main jet.

chuck · 01-20-2016, 06:08 AM

Thanks Spud. The carb is a vm30 mikuni main jet 115 / slow jet 30,What main jet # should I try?
Thanks again.

07-22-2015, 07:25 PM	#1
Bmfblackie Join Date: Jul 2015 Location: Cheektowaga New York Posts: 5	Hawk 250 exhaust Will a crf 230 exhaust system work on these? Looks like a dead ringer.
	0

01-17-2016, 12:38 PM	#5
2LZ Join Date: Mar 2010 Location: Volcano, Ca Posts: 7,101	Other Options I'm not sure of your Hawk's pipe configuration but this has always been a good choice and one or Spuds favorites as well, the FMF Turbine Core 2. It's actually a USFS Spark Arrestor but works very well as a muffler on these small displacement motors. They're relatively inexpensive (around 100.00), stainless, repackable, light and again, USFS approved for the back country. I especially like how they sound on the Hondoid pushrod motors like the Hawks share. I have them on my X-Moto, had one on my Qlink (pictured) and now have one on my Tao Tao Rhino ATV. __________________ "Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 Last edited by 2LZ; 08-29-2016 at 10:54 AM.
	0

01-17-2016, 05:45 PM	#6
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	Indeed, the FMF Universal Spark Arrestor is also very well manufactured. It will certainly last the life of the motorcycle, and beyond. __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
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01-18-2016, 02:46 PM	#7
chuck Join Date: Sep 2015 Posts: 436	[QUOTE=learnin2fly;202929]Hey Chuck, what kind of mods did you need to do? Did the header bolt right up? Glad to hear you like it. Thanks![/QUOTe Last edited by chuck; 01-18-2016 at 09:20 PM.
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01-18-2016, 03:50 PM	#8
chuck Join Date: Sep 2015 Posts: 436	Hi Learnin2fly, The header holes has to be widened slightly and the exhaust will mount to the seat mounting bolt. I used 2 pieces of stainless steel plate and some washers.The exhaust mounting bracket is about 3/4 of an inch off,the bike frame prevents the exhaust to line up. Thanks Last edited by chuck; 01-18-2016 at 10:02 PM.
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01-10-2016, 01:11 PM	#2
chuck Join Date: Sep 2015 Posts: 436	I was about to ask the same question after all the research,the other bike is the xr150
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01-19-2016, 07:07 AM	#9
chuck Join Date: Sep 2015 Posts: 436	Hi, I just installed a pro circuit t-4 for a 2006 crf230 exhaust, after some fabrication the Hawk sounds and ride a lot better. Last edited by chuck; 01-26-2016 at 08:46 AM.
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01-19-2016, 09:09 AM	#10
bogieboy Join Date: May 2013 Location: finger lakes NY Posts: 2,047	I installed an FMF powercore 2 on my shineray... very gutsy sounding, but not loud enough to warrant cop trouble...LOL I spliced it into the stock exhaust...only downside is that it doesn't have any form of spark arrester so ot isn't USFS approved...however I think fmf makes an insert that could work for that...
	0

01-19-2016, 09:12 AM	#11
bogieboy Join Date: May 2013 Location: finger lakes NY Posts: 2,047	this was literally right after I rebuilt the top end, jetting is much better now, as well as the electric start working...LOL.
	0

01-19-2016, 08:34 PM	#13
chuck Join Date: Sep 2015 Posts: 436	Thanks, lost about 2-1/2 pounds now I just have to figure out how to rejetted properly it's popping a lot,any advice. Thanks in advance. Last edited by chuck; 01-19-2016 at 09:42 PM.
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01-20-2016, 06:08 AM	#15
chuck Join Date: Sep 2015 Posts: 436	Thanks Spud. The carb is a vm30 mikuni main jet 115 / slow jet 30,What main jet # should I try? Thanks again. Last edited by chuck; 01-20-2016 at 02:18 PM.
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