what is this damn ticking..

[Hahadumball]

vtr had front cct failure..

got a new head bla bla

started it up it sounded fine.. then started to tick as the timing was out and bent valve on new head

head rebuilt put on

started up fine all good however it seems to be ticking...

i got head off, all valves good however 1 intake valve was sticking ever so slightly to 0.30mm gap before fully closed.

rode it for a week in the hope it frees itself up, still doing it so took the head off to find the valve is pretty much shut, my smallest feeler 0.002 wont even go in the gap it leaves but if you push it you get a little tap as it seats...

unless the valve sticking suddenly stopped and fixed itself as soon as id turned the ignition on and only left this little gap.. the sound hasnt changed so could it be something else?

bike ran fine, no real missfiring except from badly tuned carbs
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Fin: no matter how much I look at It I can't understand what was going through my head, all I remember is going about 80 and redlining it to stop it seizing.
360 Deg... Five 1/4 turns. :- Teflon-Mike 18 Jan 2015

[jjdugen]

Not sure where your at on this head, but if a valve has connected at some time you could well have a damaged valve guide. Sounds like it to me if the valve is sticking.
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The CBR900RR has been sold. Aprilia Falco worms its way into my heart.
Try Soi 23 on Amazon for a good read.... Self promotion? Moi?

[davethekwak]

Wear in a small end bearing on con rod can also manifest itself in ticking. Big end tends to be a knock.
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ZX6R G2 (1999) & ZX6R F2 (1996). I like ZX6!

[Pete.]

The gap in the valve will be because it's bent.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[owl]

£500
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Observation is the greatest source of wisdom.

[Hahadumball]

[Minty]

Bent = shorter end to end length. Hence gap now narrowed.
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My fingers smell of your mum.

[Nobby the Bastard]

[Baggyman]

If you have prosthetic hand, it may well be a crocodile.
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Old fart
Baghira, modded GS1000 and the T150 I bought in 1978 when I was 21

[Evil Hans]

[Baggyman]

[Pete.]

[Evil Hans]

[Hahadumball]

im happy to change the valve if need be, im just curious wtf this ticking is...

the gap was big
it made a sound

the gap is now minute
it makes the same sound

could it still be the same valve? surely the tone would change,
i must get this valve out and check
____________________
Fin: no matter how much I look at It I can't understand what was going through my head, all I remember is going about 80 and redlining it to stop it seizing.
360 Deg... Five 1/4 turns. :- Teflon-Mike 18 Jan 2015

[Baggyman]