Jump to content
Sign in to follow this  

Exhaust without rejet- will it hurt

Recommended Posts

Hi all,

 

I recently got a killer deal on a FMF Powercore 4 and a powerbomb header. I have a JD jet kit on the way. I went ahead and installed the exhaust but I was told that this can burn the valves or cause other problems. Is this true, or am I safe to ride til I have the time to install the jet kit?

 

Ace.

Share this post


Link to post
Share on other sites

As long as you do not ride it WFO for extended periods you will be fine.

  • Like 1

Share this post


Link to post
Share on other sites

If it's got an arrestor or insert , use it....

A 4 stroke engine has to be extremely lean to cause damage...

If it's surging badly and or has a high rpm misfire , don't ride it until you install a jet kit...

 

BTW...How killer was the FMF deal.?

Edited by Craig-o
  • Like 3

Share this post


Link to post
Share on other sites

Thanks for the input. I'll avoid WFO riding and watch for those signs. it does have a spark arrestor which Ill leave on.

i got the pipe and header for $250. the pipe doesn't have a scratch on it. The header is discolored from use but otherwise fine.

  • Like 2

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:

Sign in to follow this  

×
×
  • Create New...