Engine noise.

Jammy-G · Banned Joined: 17 Mar 2004 Karma :

Hi,

Went out for a spin last night with a friend ended up doing over 75 miles, country roads there and A and B roads all the way back.

I was going flat out for the journey home (on my bike is about 70) and the engine got pretty hot. When I got home I noticed the sound of the engine had changed completely from a deeper mellow sound now to a raspy sort of clean noise.
I thought at first it was because the engine had expanded a little because it got hot, but it continued with this same sound this morning when I started it from cold.

It's quite hard to explain how it sounds now but it is definitely different.

Just wondering if anyone knows why it would change sound and what this signifies.

(Bikes a Yamaha RXS100)

Cheers,

James
____________________
RooRoo: just like the time i stuck my finger up my arse with no lube at all and she didnt talk to me for hours

Ade067 · Scooby Slapper Joined: 21 Apr 2004 Karma :

When you say the engine sound has changed do you mean the sound from the exhaust? It may be that your engine and exhaust system was a little coked up and by giving it a good thrashing you've blown some of the crap out of it...also known as 'blowing the cobwebs out'!!

I don't know much about bikes as i'm just starting out myself (at 32 i'm a late developer!) but i have known this to happen with cars.

At the end of the day if the engine still runs ok and still pulls well then i would'nt worry too much about it Smile

Flip · Super Spammer Joined: 28 Feb 2004 Karma :

Ade is probably right. You have blown the sh1te out of the engine, long runs are good for engines. Don't worry about it, dude. Thumbs Up

jimbo · Borekit Bruiser Joined: 23 Aug 2003 Karma :

You may have blown a small gap in the exhaust manifold gasket too. This makes the engine sound raspy and less muffled than usual. Not a problem usually, it will just dribble some black gack after a while Karma

Jammy-G · Banned Joined: 17 Mar 2004 Karma :

It was various holes emerging in my exhaust. Patched them up with JB Weld and all is sorted (for now).

Better get another sorted asap.

Cheers,

James
____________________
RooRoo: just like the time i stuck my finger up my arse with no lube at all and she didnt talk to me for hours

Ade067 · Scooby Slapper Joined: 21 Apr 2004 Karma :

Ah problem solved then,of course i knew it was that all along but i posted that about cleaning the engine out just to attempt to sound clever...honest Very Happy

I'm glad it was nothing major,you could always patch the exhaust up with an old baked bean can and a couple of jubilee clips but we won't go down that route! Laughing

Bod · Traffic Copper Joined: 18 Mar 2004 Karma :

Bloody hell me dad used to do that lol Laughing

daz|n00by · The Internet Joined: 11 May 2004 Karma :

i used to do that on my old f.i.s.e 50 Smile

oh them was the days ,no license no wife no kids oh well ,
btw i learnt to weld so i would sugest u try welding it if possible ,will help it last