Jump to content

Head pipe cracked Help!

Recommended Posts

I have a 2005 CRF450R, It cuts out when you get on the throttle when taking off from a dead stop it cuts out near the bottom end. After some research one of the suggestions was to check for an exhaust leak. I replaced the gasket between the head pipe and the silencer and still no fix. Then I noticed there is about a 1" crack right at the 1st bend coming out of the barrel. I don't want to spend the $500 on aftermarket exhaust so am trying to find someone to weld it. Nobody around here welds titanium. Does anyone have any ideas or suggestions? I have found some full aftermarket exhaust for 270 for a 450X would this  work on a 450Rif i re-jet? I have seen that in the 2005 the exhaust is interchangeable between X and R, Could I use a factory 450X head pipe with the 450R silencer? Thanks folks.

Share this post


Link to post
Share on other sites
7 minutes ago, Kevin Snyder said:

I have a 2005 CRF450R, It cuts out when you get on the throttle when taking off from a dead stop it cuts out near the bottom end. After some research one of the suggestions was to check for an exhaust leak. I replaced the gasket between the head pipe and the silencer and still no fix. Then I noticed there is about a 1" crack right at the 1st bend coming out of the barrel. I don't want to spend the $500 on aftermarket exhaust so am trying to find someone to weld it. Nobody around here welds titanium. Does anyone have any ideas or suggestions? I have found some full aftermarket exhaust for 270 for a 450X would this  work on a 450Rif i re-jet? I have seen that in the 2005 the exhaust is interchangeable between X and R, Could I use a factory 450X head pipe with the 450R silencer? Thanks folks.

Isn't the stock header pipe stainless steel? I don't think they're titanium

I would check eBay for a used 05 stock header pipe. Probably way cheaper than having yours welded or any other option mentioned. 

Share this post


Link to post
Share on other sites
34 minutes ago, Kevin Snyder said:

I have a 2005 CRF450R, It cuts out when you get on the throttle when taking off from a dead stop it cuts out near the bottom end. After some research one of the suggestions was to check for an exhaust leak. I replaced the gasket between the head pipe and the silencer and still no fix. Then I noticed there is about a 1" crack right at the 1st bend coming out of the barrel. I don't want to spend the $500 on aftermarket exhaust so am trying to find someone to weld it. Nobody around here welds titanium. Does anyone have any ideas or suggestions? I have found some full aftermarket exhaust for 270 for a 450X would this  work on a 450Rif i re-jet? I have seen that in the 2005 the exhaust is interchangeable between X and R, Could I use a factory 450X head pipe with the 450R silencer? Thanks folks.

I can purchase a new OEM 450X head pipe for around $100 dollars. I need to know if the head pipe will fit my 450R with the R silencer

Share this post


Link to post
Share on other sites

FMF PowerBomb is stainless and like $150-$160 on ebay (what I paid anyway).  Looks nicer than stock IMO.

Just saw one for $156.95 w/free shipping.

Edited by HRC27
  • Like 1

Share this post


Link to post
Share on other sites
18 minutes ago, HRC27 said:

FMF PowerBomb is stainless and like $150-$160 on ebay (what I paid anyway).  Looks nicer than stock IMO.

Just saw one for $156.95 w/free shipping.

do you know if it fits the factory silencer?

Share this post


Link to post
Share on other sites
3 minutes ago, Kevin Snyder said:

do you know if it fits the factory silencer?

Yes it does.  Pic of an 03 with FMF PB and a stock 06 muffler. PB was a direct bolt on, muffler had to modify front mount and subframe.

Anyway, again, yes it will fit the factory muffler.

IMG_3314.JPG

  • Like 1

Share this post


Link to post
Share on other sites
13 hours ago, Kevin Snyder said:

did you have to re-jet? if so what jets?

 

 

I wanted an 06 so shifted gears and that's my current project.  Never rode this one.

However, I have run aftermarket head pipes with stock mufflers on all my CRF450R's and never had to re-jet.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:


×