Header Wrap Problem?

[BuellS1Culver]

I took my S1 out of storage about a week ago. Got it home the first night with no problems. That night I put header wrap on it. The next day wen I took it out it started to pop on me. When riding at 3000 to 3500 RMP, the exhaust will pop. I thought it was just bad gas, so I dumped the tank and put fresh 93 in it. Nope, still doing it. Ripped apart my carbaratior and cleaned it out. Still doing it. Checked for a leak in the pipe, nothing. It almost leads me to think of the wrap. But I don;t want to take it off before I hear everything. It was a lot of hard work to put it on and I don;t want to mess it all up just to find out it was not the problem. Anyone have any ideas?

 

[LeFox]

could be the wrap...
since the headers are now covered, there burnt a/f mixture doesn't cool down as much = has more moving particles, thus more pull, getting air out faster and maybe, as a result, burning a bit of left-over unburnt fuel in the exhaust.

is the popping bad/loud?
how old are your plugs?

 

[taylor]

this sounds bad, i was just about to wrap my heads. now im thinking i shouldnt. i have never heard of wrapping heads making poping. anyone else heard this?

 

[GatorBuell]

this sounds bad, i was just about to wrap my heads. now im thinking i shouldnt. i have never heard of wrapping heads making poping. anyone else heard this?

You will be fine Taylor, its isolated and not a common issue.

 

[BuellS1Culver]

The plugs where another thing I changed. They have about 50 mi. on them. The popping is not to bad. Like i said, only at 3000 to 3500 RPM. It also makes a weird sound when I turn it off. Almost like my pipe is storing air and when I turn it off, it sounds like a bunch of air just got released out of the tail pipe. No clue what it could be....

 

[LeFox]

what kind of carb & exhaust are you running?
type of airfilter?

 

[aaronbuell]

I just did the header on my 98 s3 this week. I have not had time to put it on yet. You got me a little worried it was my first time wrapin a header and it was a pain. I plan on firing it up this weekend. I let you know if it pops.

98 s3 D&D slip-on pro-header stock carb rejetted

 

[BuellS1Culver]

It has a Vance & Haines slip-on. Stock carb but has been jetted. The air filter is an after market Buell race air cleaner. the site I found it on

 

[taylor]

sweet thx gator

 

[LeFox]

my guess would be to rejet your carb.

 

[BuellS1Culver]

Thanks LeFox, I'm going to have to try that.

 

[LeFox]

hope it works out for you

 

[aaronbuell]

Put my bike back together last night. I never had any problems before wraping the header. The thing starts right up with the choke on but when I unchoke it dies it will not run at idle.

 

[LeFox]

when hot & cold?

 

[aaronbuell]

It will idle with the choke out about a 1/4 of the way hot or cold.

 

[LeFox]

carb or injected?

 

[aaronbuell]

Lefox

98 s3 stock cv carb buell pro oval air cleaner pro header with D&D slip-on. I had it dynoed a few years ago with the same set up but with the buell pro slip-on. If i remember right it was running rich when it was dynoed so the guy changed the main jet from I think a 200 to a 195 it ran smoother after he was done.

 

[LeFox]

think you have the same problem as BuellS1Culver.

 

[aaronbuell]

Thats what I was thinking going to get some new jets this weekend. I'll let you know what happens.
Thanks for the help.

 

[aaronbuell]

I cleaned the carb, new plugs and changed the oil. It idles now takes forever to warm up.