Pop-tastic mate

Oh Oracle of perceived wisdom, what could be wrong with my trusty steed?[1]

When under heavy engine breaking my exhaust pipe lets forth a pop, not
entirely dissimilar to[2] a back fire, although not too loud (more of a pop
than a bang). I'm running with the stock system and no tom-foolery has
taken place with any of the settings. The problem usually occurs after
giving it beans for a while, and then having a quantity of engine breaking
(for example today, whilst descending a steep hill behind some cars).

Should I take it to the dealer to have a look at, or is there something I
can do to ease the problem? I'm not on the gas when this happens.

[1] Apart from its owner.
[2] And some would say, exactly the same as.

 

Slider wrote in

Air is getting in somewhere: unburnt fuel from the over-run is detonating
rather than being expelled into the atmosphere. Check connections are tight
& that there are no holes.

 

At the exhaust manifold or could it be further down the line?

 

Slider wrote in

Wherever there is a connection. Oxygen ain't fussy where it gains access.

 

wessie wrote:
[snip]

Thanks very much for your help, I'll check over everything.

 

....thank you for those reassuring words! I would have assumed that I would
have heard the downpipes blowing if there was a leak. I'll tighten them up
tomorrow and see if it makes any difference. Thanks again.

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, Slider

Careful with that. If you overtighten them Bad Things will occur.

As I found out[1] on the Shite Old Volvo water pump this evening.

Is there *any* worse spannering experience than that feeling of a stud
snapping? Or any better one than pulling the pump back off to find
*just* enough stud protruding to get a pair of grips on? Phew...

Oh and apologies to my neighbours. It all got a tad sweary at one point.

[1] For about the 427th time...

 

Hmm and I thought he was talking about the noise you get occasionally on the
overrun.

Glad I didn't say anything

 

Heh, I've got my torque wrench set to the correct amount (20Nm), as I'm well
aware of overtightening nightmares, but I'll leave those tales of woe for
another thread

 

Wot 'e said. Although some bikes are fitted with a valve to bleed air into
the exhaust, to help scavenge up unburnt gasses, and this can have the same
effect.

 

It was somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "Slider"

Leaky header pipes.

--

Dave

GS 850 x2 / SE 6a
SbS#6 DIAABTCOD#16 APOSTLE#6 FUB#3
FUB KotL OSOS#12? UKRMMA#19 COSOC#10

 

Do you mean *non* stainless or have I missed something?

 

It was somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "Doesnotcompute"

Dateline: Ireland.

I'd be bloody careful doing it anywhere near an attempted bank robbery.
Seems a cop was shot by a colleague when a loud bang was heard and the
triggerhappy fucker let one rip thinking he'd been fired on.

They ascribed it to a car tyre blowing out, but it could easily have
been a k/s backfire.

--

Dave

GS 850 x2 / SE 6a
SbS#6 DIAABTCOD#16 APOSTLE#6 FUB#3
FUB KotL OSOS#12? UKRMMA#19 COSOC#10

 

Dateline: Bedford.

On the way into town, I spotted a bunch of "real" kids - you know,
raggy jumpers and tatty anoraks, covered in mud, blood and bits of
grass, playing around a stream and bushes not far from the road. They
were heavily armed with Super Soakers and jets of stream water were
blasting all over the place. Good, it was. Wished they'd invented
Soakers when I was eight years old ...

Anyway, they all waved at the tatty black bike, and off I went.

On the return trip, they were still there, just the same if a little
more bedraggled and considerably wetter. Approaching them, I slipped
down a gear, slid my left hand down down my thigh to my iholster and
drew my iMagnum 45 (the most powerful ihandgun in the world) ...

Raising my iMagnum, I drew a bead on the furthest kid, who had turned
to look at me burbling towards them. Slipped the killswitch over and
counted to three, then pulled the trigger and the iMagnum kicked my
hand in the air. Mr. Laser's finest race can gave a mighty bark and
all of the kids left the ground vertically ... ;-)

 

<g>
you are a bad man Mr Pip.

 

It was somewhere around Barstow, on the edge of the desert, when the

They'll be figuring out how you did that for days yet.

My grandad used to fart every time I pulled his index finger.

--

Dave

GS 850 x2 / SE 6a
SbS#6 DIAABTCOD#16 APOSTLE#6 FUB#3
FUB KotL OSOS#12? UKRMMA#19 COSOC#10

 

Grimly Curmudgeon says...

Dead bodies always do that.

 

It was somewhere around Barstow, on the edge of the desert, when the

Had to jump on his stomach to make it happen then.

--

Dave

GS 850 x2 / SE 6a
SbS#6 DIAABTCOD#16 APOSTLE#6 FUB#3
FUB KotL OSOS#12? UKRMMA#19 COSOC#10

 

It would have been churlish not to...
--
O
1 Black, shortly to undergo extensive surgery.
1 Red, undergoing lightweight surgery. -----
1 Blue, for Power-Ranger baiting. | o |
Numbers ... | o |
Stuff ... | ooo |
Life ... -----

 

Nigel Eaton wrote

Yes, how about cross threading a spark plug in a deeply recessed
aluminium twin cam head.

Feel was a bit restricted as I had the injection pipes laced around
the ratchet extension.

Got the 'oh ****' feeling, wound it out and found all the threads
still attached to the spark plug.

Aaaaaargh.

2 day stripdown later ....

Cheers,

Paul.