On Sat, 23 Jan 2010 17:15:49 +0000, (E-Mail Removed)
(The Older Gentleman) wrote:

>And damn me, the ticking seemed louder when I restarted it. Much
>head-scratching and the odd swear-word.
>
>It's sorted now: source of the noise traced. A virtual pint to anyone
>who can guess what it was. A new one on me, certainly.

Err, decompressor not fully disengaging?

I've also had ticking from a valve not closing properly - the tick
actualy came from the exhaust. But that was a misplaced shim and I
guess the GN is screw 'n' locknut, so can't be that.

--
-Pip

On Sat, 23 Jan 2010 17:15:49 +0000, The Older Gentleman
<(E-Mail Removed)>
wrote in <1jcs7q7.rbo7w9m78zeiN%(E-Mail Removed) .uk>:

> It's sorted now: source of the noise traced. A virtual pint to anyone
> who can guess what it was. A new one on me, certainly.

No-eyed deer. Four strokes are a mystery to me. I used to change
the shims on the GS550B, and tweak the cam-chain tensioner, but that's
about the limit of my technical experience.

--
Ivan Reid, School of Engineering & Design, _____________ CMS Collaboration,
Brunel University. Ivan.Reid@[brunel.ac.uk|cern.ch] Room 40-1-B12, CERN
GSX600F, RG250WD "You Porsche. Me pass!" DoD #484 JKLO#003, 005
WP7# 3000 LC Unit #2368 (tinlc) UKMC#00009 BOTAFOT#16 UKRMMA#7 (Hon)
KotPT -- "for stupidity above and beyond the call of duty".

Pip Luscher <(E-Mail Removed)> wrote:

> On Sat, 23 Jan 2010 17:15:49 +0000, (E-Mail Removed)
> (The Older Gentleman) wrote:
>
> >And damn me, the ticking seemed louder when I restarted it. Much
> >head-scratching and the odd swear-word.
> >
> >It's sorted now: source of the noise traced. A virtual pint to anyone
> >who can guess what it was. A new one on me, certainly.
>
> Err, decompressor not fully disengaging?

Don't think it has one, actually.
>
> I've also had ticking from a valve not closing properly - the tick
> actualy came from the exhaust. But that was a misplaced shim and I
> guess the GN is screw 'n' locknut, so can't be that.

Screw & locknut it is. The clue was in the word 'tappets'.


--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ER GN250 Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com

On 23 Jan, 18:03, totallydeadmail...@yahoo.co.uk (The Older Gentleman)
wrote:
> Pip Luscher <plusc...@live.invalid.co.uk> wrote:
> > On Sat, 23 Jan 2010 17:15:49 +0000, totallydeadmail...@yahoo.co.uk
> > (The Older Gentleman) wrote:
>
> > >And damn me, the ticking seemed louder when I restarted it. Much
> > >head-scratching and the odd swear-word.
>
> > >It's sorted now: source of the noise traced. A virtual pint to anyone
> > >who can guess what it was. A new one on me, certainly.
>
> > Err, decompressor not fully disengaging?
>
> Don't think it has one, actually.
>
>
>
> > I've also had ticking from a valve not closing properly - the tick
> > actualy came from the exhaust. But that was a misplaced shim and I
> > guess the GN is screw 'n' locknut, so can't be that.
>
> Screw & locknut it is. The clue was in the word 'tappets'.

Locknut had vibrated itself off the screw.

<Looks at GSX behemoth>

DAMHIK, IJD OK.

--
JackH

The Older Gentleman wrote:

>
> It's sorted now: source of the noise traced. A virtual pint to anyone
> who can guess what it was. A new one on me, certainly.
>
>

hmmm.

You've fixed it quite quickly so I guess nothing drastic. I was thinking
exhaust, head gasket or rattling carb slide.

Summat loose.

Give up.

--
/Simon

The Older Gentleman wrote:

> It's sorted now: source of the noise traced. A virtual pint to anyone
> who can guess what it was. A new one on me, certainly.

Someone had fixed a playing card to the camchain with a clothes peg?

--
Krusty

'03 Tiger 955i '02 MV Senna '96 Tiger (for sale)
'79 Fantic Hiro 250 (for sale) '81 Corvette (for sale)

JackH <(E-Mail Removed)> wrote:

> Locknut had vibrated itself off the screw.

Nope. That in itself doesn't make the noise (er, unles it falls into
something crucial), but the opening out tappet certainly does. Had it
happen to me, too, once.


--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ER GN250 Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com

Simon Wilson <(E-Mail Removed)> wrote:

> The Older Gentleman wrote:
>
> >
> > It's sorted now: source of the noise traced. A virtual pint to anyone
> > who can guess what it was. A new one on me, certainly.
> >
> >
>
> hmmm.
>
> You've fixed it quite quickly so I guess nothing drastic. I was thinking
> exhaust, head gasket or rattling carb slide.
>
> Summat loose.
>
> Give up.

Tacho cable/drive.

I noticed that the shrink-wrapping, round the end of the tacho cable at
the cylinder head, had ridden up slightly, and so decided to push it
down to prevent any ingress of dirt and crap, and as I touched the cable
the noise stopped.

Huh? HUH???

I waggled the cable this way and that slightly and the ticking started
or stopped according to where the cable was sitting.

So I guess there's a fraction of play in the worm drive to the cable.
Anyway, that's it.

Like I said, a completely new one on me. I was certain it was a loose
tappet. It sounded identical.

Even after nearly 35 years of faffing with bikes, every day's a
schoolday.


--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ER GN250 Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com

The Older Gentleman <(E-Mail Removed)> wrote:

> Tacho cable/drive.

I thought that may be involved, but thought it was so bizarre and
ridiculous, I risked looking a bit foolish if posted....
--
SteveH

SteveH <(E-Mail Removed)> wrote:

> I risked looking a bit foolish if posted....

It's never stopped you before ;-)


--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ER GN250 Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com