Beowulf Exhaust backfires, bad for my bike?
 

I have fitted a Beowulf slip-on.

Now that it's bedded in, it sounds really lovely, especially with the db killer removed!

In particular, it can produce some pretty impressive backfires - complete with flames.

BUT - is that damaging my engine in any way? The sound and the backfires and gurgling is very nice, but I don't want to damage the engine.

Re: Beowulf Exhaust backfires
 

If it's anything like my Delkevic stubby, it pops and bangs like a goodun on the over run. I believe it's quite normal. I'm pretty sure somebody more knowledgeable will be along shortly to give a better explanation. It does sound pretty epic though doesn't it.:cool:

Re: Beowulf Exhaust backfires
 

i have a k7 twin spark with a warrior fitted and i don't get backfiring, flames or popping.

Re: Beowulf Exhaust backfires
 

You should fit a PC as its not so good having unburned fuel washing the bore of oil,Lean Mixtures often backfire
You Tried a Performance filter as they sometimes counter act each other ?

Re: Beowulf Exhaust backfires
 

if a can was the only change you made and was fitted correctly, then you shouldn't have excessive back firing or flames, I suspect you haven't sealed it very well :smt102

However, it's unlikely (but no promises) to damage the engine, but if your can is a race one and has packing in it, this will be stripped out far quicker, leaving the skin (especially if it's carbon) susceptible to heat damage or distortion.

Cheers Mark.

Re: Beowulf Exhaust backfires
 

So, mine being a curvy could be running a little on the lean side. It generally pops and bangs when rolling off after quick burst of acceleration? If I'm being a bit more conservative with the throttle it doesn't do it anywhere near as much.

Re: Beowulf Exhaust backfires
 

Richen the idle up a touch.Mind you the carb,s ant easy to get too

Re: Beowulf Exhaust backfires, bad for my bike?
 

Its fine for the engine . I rev alot and hit kill switch on and off very fast and it sounds like a bomb exploded . I did this 100 times on my birthday . And a few other times and nothing has happened lol . Give it ago . U wont stop doing it .its funny watching people jump lol

Re: Beowulf Exhaust backfires, bad for my bike?
 

Were you 100 years old?

Re: Beowulf Exhaust backfires, bad for my bike?
 

i think the only way it could damage is if it backfired back through the cabrs/airbox. its unlikely but im sure some people on here have had it happen, but no mention of damage.

flames look cool dont they ;)