The dreaded ticking noise !

[Bofh5]

i've searched the forums and there seems to be several opinions on this.
its a 2 stroke 125 engine.
i first noticed it after i left my bike out overnight and the temp had dropped to -4
when i started it there was a ticking noise sort of like tick..tick..tick..tick
when i rev the engine the ticking gets faster.
i rode to work and the ticking was still there though it wasn't as bad when the engine was up to normal running temp.

from my forum search it's either the top end bearing or the piston slapping the cylinder.
the bike has done 14000 miles and has had a new piston fitted at about 9000. i have the old piston and it has a bearing still in it which seems ok. i can't feel any side movement etc on the pin so could try swapping it out.

now i'm a bit worried as i understand that if its the piston slapping you need an a bigger piston and have to get the barrel bored.
however because of the coating this can't be done.

if it is piston slap can you get bigger piston rings ? is this possible?

i just hope its not the lower end bearing as this will be a bigger job. but from searching when this goes its more of a rumble than a tick sound so i don't think it is.

sorry for the long post just trying to explain this as best as possible.

any advice suggestions welcome.

Thanks all
____________________
(L)users...Disk space is to good for them.

Bikes: Honda 50 / CB125-TDC / 93 CBR600 F2 (Stolen & Trashed) / 2001 SP-1 (Sold) / 95 CBR600 F3

[MaybeGuy]

my unhelpful rule of thumb is this:

if it runs, its happy.
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[mr jamez]

The little end rattles, big ends knock, main bearings rumble.

What bike is it?

If you are certain it is coming from the top end of the engine, then it is more than likely the little end.
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NSR 125F > BROS 400 > NC30 > BROS 400 > Trumpet S4 > '97 VFR 750

[Bofh5]

hi
its a NS125R
It sounds like a tick rather than a tapping or rattle or knocking.
i'll post an mp3 of it tomorrow to see if that helps with identifying it.
cheers
____________________
(L)users...Disk space is to good for them.

Bikes: Honda 50 / CB125-TDC / 93 CBR600 F2 (Stolen & Trashed) / 2001 SP-1 (Sold) / 95 CBR600 F3

[Phil_P]

Pinking?
____________________
It is not enough to win, others must fail.
Moto Guzzi 1100 Sport Injection '96

[Bofh5]

Heres a sound clip of the ticking....
____________________
(L)users...Disk space is to good for them.

Bikes: Honda 50 / CB125-TDC / 93 CBR600 F2 (Stolen & Trashed) / 2001 SP-1 (Sold) / 95 CBR600 F3

[Phil_P]

Sounds almost like your exhaust blowing or perhaps a water pump bearing.
____________________
It is not enough to win, others must fail.
Moto Guzzi 1100 Sport Injection '96

[darkangel]

put the end of a screwdriver upto various parts of the engine and have a listen to where its comming from

[darkangel]

*edit*
arg sorry double post
Forum totally lagged out and wouldn't work O_o