engine/exhaust noises... (newbie)

[illvibetip]

so Im new to this so excuse my ignorance hehe.

As Im riding downhill and coming to a stop/turn soon, sometimes i just let the bike ride in gear and Im not accelarating - but the engine/gravity is slightly pushing against the clutch (im sorry i dont know if thats right) giving it higher revs but slowing the bike a bit).

any way, as Im doing this, I would expect the engine to be a continuous HHHHHMMMMmmmm sound (getting lower) as it slows to a stop.

But it doesnt. It sounds like a fire fight in palestine (thats literally how it sounds) pap hmmmm pap papapapap pap hmmmmm pap pap ( ahem...).

Is it suppossed to sound like this? I asked someone and he said 'the mix' is wrong. Hes sometimes wrong about these things, so I thought Id ask someone who knows or at least for a second opinion.

why is it making that sound and what can I do about it?

[rennie]

It's called engine braking or overun!

Some bikes tend to make funny noises when you do this,

especially those with aftermarket exhausts.

Your fueling is probably slightly out!

What sort of bike is it?

[illvibetip]

bloody ell' that was quick!

Its a hyosung comet 250cc (korean). It has the standard exhaust that came with the bike still or at least the same model.

whats an aftermarket exhaust btw?

cheers

[rennie]

an aftermarket exhaust is 1 that you buy to replace the standard exhaust,

usually louder.

If yours has the standard exhaust and the banging/popping is bad

then I would think there is something not quite right, with the fueling,

however, I have no experience of those particular bikes.

[techno]

Yeh mine pops and bangs like a goodum when i shut the throttle, but my exhaust will do as it did on the blade too.

someone did mention tho it maybe running a bit lean, i wouldnt know personally but the guy in question knows a bit and i know from the last dyno mine was but not significantly.

[illvibetip]

thanks for replies.

well it doesnt sound as if its anything to worry about in that case. Its not a performance bike, I just use it for sight seeing so Ill not play with it just yet (for risk of making it worse).

cheers

[Guest]

yep, does it on mine too, and its not a performance machine.. sounds loverly though...

theres less pressure from the gasses coming out so some get sucked back in and make the engine pop...