Lound knocking noise (Aprilia rs 125)

[james123]

Right so just before I had someone look at my aprillia because it was for sale it started making a loud knocking noise.

It still knocks with the clutch in and when i rev it and its got the right gear oil.
so Ive ruled out gear box.

checked piston for wear and it seemed ok.

I'd just cleaned the carb and air filter just before it started knocking if it makes any difference?

I'm looking for someone that could diagnose and fix the probelm for me, so if anyone can or if anybody knows off anyone please let me know cos i still need to sell it.

[Boss]

big end bearing on the crank?

[gazza_]

big end bearing on the crank?

agreed

[james123]

yeh I do think it was something to do with the crank...

Anybody know someone that could do that job?

[Yellow Snow]

am no bike guy but and bike place should be able to do it paul deadman road and track but probly a bit expensive maybe some 1 on here is good with bike motors?

[james123]

yeh i know paul he is very good but am looking for some one like you said on here that could do it cheap.

[Unders]

A friend of mine is coming over for TT fortnight who is really good with bikes. I will ask him if you like?

[macca]

if it is the bottom end it will be a fairly big and expensive job you need all the bottom end split
slick bass is the person to get a hold of(used to do carl fogartys bikes) he is ramsey area i think
straight six might be able to get you slicks number

[Straightsix]

Sounds like it is the crank to me
Slick is down on the Andreas Airfield and his number is 882271 i dont think he is very expensive either

[macca]

ill give £50 for it and ill collect it as is