is this true? - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums

moracer06 · 08-31-2010, 11:11 AM

I was going to wrap the header on my yfz to keep from burning my leg when drag racing and someone told me that if i wrap the header that it will cause problems? burnt valves? how can that be? im pretty sure its a line of bull that some guy was tryin to give me. Im a mechanic and never had or been told that before lol but now this guy has me concernd

jeffro184 · 08-31-2010, 11:12 AM

sounds like b/s too me there are people on here with the header wrapped.

**leveldrummer** · 08-31-2010, 11:19 AM

only thing i would think it would hurt is just transfer more heat further down the pipe, and either burn out your packing quicker or warm up plastics and crap like that...

BlueBlurYFZ · 08-31-2010, 11:29 AM

Well, if it's a titanium header, they make the walls very thin on those, and if you wrap it, the heat may not necessarily escape further down then pipe, and it may potentially burn a hole in your header. Doesn't happen to everyone, but some people have had this issue. If he told you that you would burn valves, he's on something!

newatnothing · 08-31-2010, 11:54 AM

ya just dont use it on titanium

moracer06 · 08-31-2010, 12:12 PM

lol ok guys thats what i was thinkin. Pretty sure this guy was smokin crack when he told me. he said that and i was like..uh...and then i started to laugh at him.

newevolutionix · 08-31-2010, 12:33 PM

If you wrap the stock titanium header you will burn holes through the header, the header get very close to its melting point when you ride normal, so when you wrap it it gets even hotte. I wouldn't wrap the stock header.

ae13291 · 09-02-2010, 04:11 PM

the stock header is titanium? i thought it was stainless?

LONE_STAR_SHEE · 09-03-2010, 03:27 PM

BTW

I used header wrap on my YFZ and had no problems, main reason was to not burn my plastic or my legs.

It was on a Ice Cube 523cc engine with an Nmotion exhaust. No problems at all, just make sure you wrap it tight.

joshsdaddy · 09-04-2010, 09:24 AM

Dam there is alotta love in this forum. Original question was good though. I was gonna wrap mine too. I've never rode a quad or bike in 30 years of riding that gets so dam hot by my leg. Can definitaly see me burning a few riding pants. Think i'll wrap mine and try it. Worst case scenario is the header pipe gets a whole like someone said. Its getting an HMF anyway, so screw it. Would rather burn the pipe than my leg. My concern is this dam bog off idle. Tried the zip-tye mod with no change. And whats the deal on this oil mod? Big hype? or major concern if not done.

manny530 · 09-04-2010, 11:25 AM

Quote:

Originally Posted by joshsdaddy

Dam there is alotta love in this forum. Original question was good though. I was gonna wrap mine too. I've never rode a quad or bike in 30 years of riding that gets so dam hot by my leg. Can definitaly see me burning a few riding pants. Think i'll wrap mine and try it. Worst case scenario is the header pipe gets a whole like someone said. Its getting an HMF anyway, so screw it. Would rather burn the pipe than my leg. My concern is this dam bog off idle. Tried the zip-tye mod with no change. And whats the deal on this oil mod? Big hype? or major concern if not done.

i got a buddy who wraped his hmf header no problems so i think u will be ok

joshsdaddy · 09-04-2010, 12:37 PM

Yeh, i think so too. If you think about it. There are alot of street bikes, and race cars that wrap there headers and have no problem. So why would the quad be any different.

**leveldrummer** · 09-04-2010, 11:17 PM

are you guys seroius! why do i have waste time and edit 2 pages of you 2-3 idiots insulting each other? i dont care how stupid you think each other is. grow up, WTF?!

next time i do a two page edit with either one of you, some one is getting a 2 week ban. im tired of baby sitting people that are supposed to be adults...

timothy102385 · 09-04-2010, 11:27 PM

no its not true i have had mine wrapped for the last year, and had no problems.

manny530 · 09-04-2010, 11:40 PM

Quote:

Originally Posted by leveldrummer

are you guys seroius! why do i have waste time and edit 2 pages of you 2-3 idiots insulting each other? i dont care how stupid you think each other is. grow up, WTF?!

next time i do a two page edit with either one of you, some one is getting a 2 week ban. im tired of baby sitting people that are supposed to be adults...

sorry.........

moracer06 · 09-06-2010, 08:12 PM

Quote:

Originally Posted by leveldrummer

are you guys seroius! why do i have waste time and edit 2 pages of you 2-3 idiots insulting each other? i dont care how stupid you think each other is. grow up, WTF?!

next time i do a two page edit with either one of you, some one is getting a 2 week ban. im tired of baby sitting people that are supposed to be adults...

hahahahaha i feel the love in this post!

snogibson · 09-07-2010, 12:37 PM

Quote:

Originally Posted by leveldrummer

are you guys seroius! why do i have waste time and edit 2 pages of you 2-3 idiots insulting each other? i dont care how stupid you think each other is. grow up, WTF?!

next time i do a two page edit with either one of you, some one is getting a 2 week ban. im tired of baby sitting people that are supposed to be adults...

sounds rough ... didn't mean to make your life so hard.

mcalkins3 · 09-07-2010, 09:51 PM

No companies make a straight steel head pipe correct? I haven't dealt with the head wrap as heat transfer problem but i'm sure people have heard of the moisture problems header wrap creates on no coated or Cold rolled steels.

BlueBlurYFZ · 09-07-2010, 11:38 PM

So I was thinking about this post more and more, and it can theoretically cause burning valves. The exhaust is about 1000 to 1400 degrees farenheit, the air that is, so you wrap your header, the heat can't be lost there, if your pipe is too restrctive, it in essence could keep to much heat in the header, it could back into your head and hooray! burned valve. Now before you flame me, realize I don't agree with this, but it in theory could happen. I havent heard of it happening, but hey, who knows!

08-31-2010, 11:11 AM	#1 (permalink)
moracer06 Senior Member Join Date: Aug 2008 Location: Arnold Missouri Posts: 836	is this true? I was going to wrap the header on my yfz to keep from burning my leg when drag racing and someone told me that if i wrap the header that it will cause problems? burnt valves? how can that be? im pretty sure its a line of bull that some guy was tryin to give me. Im a mechanic and never had or been told that before lol but now this guy has me concernd

08-31-2010, 11:29 AM	#4 (permalink)
BlueBlurYFZ Senior Member Join Date: Aug 2010 Location: Wisconsin Posts: 155	Well, if it's a titanium header, they make the walls very thin on those, and if you wrap it, the heat may not necessarily escape further down then pipe, and it may potentially burn a hole in your header. Doesn't happen to everyone, but some people have had this issue. If he told you that you would burn valves, he's on something! __________________ 2006 Blue YFZ450: Stage 1 Hotcams, GYT-R Nerfs, GYT-R Slip-on Oval Race Pipe, GYT-R Intake Filter, Outerwears Prefilter, Airbox Lid is GONE Where it Belongs, DG Front Bumper, Fly Handlebars, ITP GNCC Holeshots, and adding as the paychecks arrive...

08-31-2010, 11:54 AM	#5 (permalink)
newatnothing Senior Member Join Date: Nov 2009 Posts: 547	ya just dont use it on titanium __________________ MMAD MOFO

08-31-2010, 12:33 PM	#7 (permalink)
newevolutionix Senior Member Join Date: Jan 2008 Location: Olmsted Falls Posts: 254	If you wrap the stock titanium header you will burn holes through the header, the header get very close to its melting point when you ride normal, so when you wrap it it gets even hotte. I wouldn't wrap the stock header. __________________ 05 YFZ Special Edition Yellow/Black.

09-02-2010, 04:11 PM	#8 (permalink)
ae13291 Senior Member Join Date: Jun 2009 Location: san fernando valley,CA Posts: 311	the stock header is titanium? i thought it was stainless? __________________ 2004 YFZ450 red on white plastics. 2002 honda 400ex

08-31-2010, 11:12 AM	#2 (permalink)
jeffro184 Junior Member Join Date: Apr 2008 Posts: 9	sounds like b/s too me there are people on here with the header wrapped.

08-31-2010, 11:19 AM	#3 (permalink)
leveldrummer Senior Member Join Date: Dec 2007 Location: south of atlanta, GA Posts: 7,360	only thing i would think it would hurt is just transfer more heat further down the pipe, and either burn out your packing quicker or warm up plastics and crap like that...

08-31-2010, 12:12 PM	#6 (permalink)
moracer06 Senior Member Join Date: Aug 2008 Location: Arnold Missouri Posts: 836	lol ok guys thats what i was thinkin. Pretty sure this guy was smokin crack when he told me. he said that and i was like..uh...and then i started to laugh at him.

09-03-2010, 03:27 PM	#9 (permalink)
LONE_STAR_SHEE Senior Member Join Date: Apr 2005 Posts: 1,296	BTW I used header wrap on my YFZ and had no problems, main reason was to not burn my plastic or my legs. It was on a Ice Cube 523cc engine with an Nmotion exhaust. No problems at all, just make sure you wrap it tight. __________________ Mike R.///Avondale, Arizona///2005 YFZ523

09-04-2010, 09:24 AM	#10 (permalink)
joshsdaddy Senior Member Join Date: Sep 2010 Location: Nanticoke,PA Posts: 630	Dam there is alotta love in this forum. Original question was good though. I was gonna wrap mine too. I've never rode a quad or bike in 30 years of riding that gets so dam hot by my leg. Can definitaly see me burning a few riding pants. Think i'll wrap mine and try it. Worst case scenario is the header pipe gets a whole like someone said. Its getting an HMF anyway, so screw it. Would rather burn the pipe than my leg. My concern is this dam bog off idle. Tried the zip-tye mod with no change. And whats the deal on this oil mod? Big hype? or major concern if not done.

09-04-2010, 12:37 PM	#12 (permalink)
joshsdaddy Senior Member Join Date: Sep 2010 Location: Nanticoke,PA Posts: 630	Yeh, i think so too. If you think about it. There are alot of street bikes, and race cars that wrap there headers and have no problem. So why would the quad be any different.

09-04-2010, 11:17 PM	#13 (permalink)
leveldrummer Senior Member Join Date: Dec 2007 Location: south of atlanta, GA Posts: 7,360	are you guys seroius! why do i have waste time and edit 2 pages of you 2-3 idiots insulting each other? i dont care how stupid you think each other is. grow up, WTF?! next time i do a two page edit with either one of you, some one is getting a 2 week ban. im tired of baby sitting people that are supposed to be adults...

09-04-2010, 11:27 PM	#14 (permalink)
timothy102385 Member Join Date: Sep 2010 Location: ky Posts: 66	no its not true i have had mine wrapped for the last year, and had no problems.

09-07-2010, 09:51 PM	#18 (permalink)
mcalkins3 Member Join Date: Aug 2010 Posts: 45	No companies make a straight steel head pipe correct? I haven't dealt with the head wrap as heat transfer problem but i'm sure people have heard of the moisture problems header wrap creates on no coated or Cold rolled steels.

09-07-2010, 11:38 PM	#19 (permalink)
BlueBlurYFZ Senior Member Join Date: Aug 2010 Location: Wisconsin Posts: 155	So I was thinking about this post more and more, and it can theoretically cause burning valves. The exhaust is about 1000 to 1400 degrees farenheit, the air that is, so you wrap your header, the heat can't be lost there, if your pipe is too restrctive, it in essence could keep to much heat in the header, it could back into your head and hooray! burned valve. Now before you flame me, realize I don't agree with this, but it in theory could happen. I havent heard of it happening, but hey, who knows! __________________ 2006 Blue YFZ450: Stage 1 Hotcams, GYT-R Nerfs, GYT-R Slip-on Oval Race Pipe, GYT-R Intake Filter, Outerwears Prefilter, Airbox Lid is GONE Where it Belongs, DG Front Bumper, Fly Handlebars, ITP GNCC Holeshots, and adding as the paychecks arrive...

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