This isn't normal I'm guessing

Not very good

mine looked kind of like that, maybe a little better, i also couldnt feel grooves but could see the markings, hone my machinst guy hone it with a rigid hone and it looked nearly new after, you may be too for gone if you are feeling grooves though..........

edit: that kind of wear on a high hour thumper is pretty normal too btw.

What causes this is extreme engine forces causing the short wall , long stroke, large diameter piston to rock in the bore at high rpm thus causing scratches in the bore itself over time. the piston is alum, the wall nikasil plated steel and more high revving time/lack of piston changes causing rocking and scrathes, they start smalll and grow and grow and grow etc.

working and still paying for college, a house, two kids and a husaberg sucks just as bad, let me tell ya :lol:

Maybe i dont have enough thumper experience here to know,......it doesnt loook good but you could start with a local machine shop ridgid hone job (*not a bore/oversize at all*) which should cost 10-15 bucks then see where your at with the scratches. if there not bad then maybe you got something with this liner, but if there is a bunch of scratches left you can feel its not worth a new piston/rings IMO

markings vs scratches is the difference, markings that dont catch a nail will come out with a ridged hone......

+1

Try a ball ore flex hone job,fairly cheap.

why do you need a new cylinder ?? it only looks like the plating is damaged . theres a place local to me called motrac racing he builds top quality race bikes and offers the service for replating cylinders iv had 2 husaberg cylinders plated and quite a few from other makes with fantastic results .
you can post him your cylinder and he will post it back a couple of weeks later when its back from plating ( they take 14 days or so ) .
and its only £145 plus return postage , then your cylinder is brand new and im quite certain you wont get a brand new cylinder for that kind of money.

i can give you his phone number if you want

cheers kris

you dont have engine repair shops or machine shops where your from??

if it were me and being cheap, i would do a quick hone and new rings and call it a day :cheers:

worse thing that will happen, loss of compression or power from that compared to a newly plated cylinder.

are you putting in a new piston too?

my machine shop guy said he would do it but it wouldnt do anything due to it being nikasil,he also said a standerd ball hone or flex hone wouldnt do anything to it at all, he used a rigid hone and even to his surprise it put a nice refinished look to it again, like new but without removing material. the rigid hone is just like it sounds the grinding stones are rigidly presed into the side of the wall vs. having a relativly small amount of spring pressure against holding the stones against the wall.

i still think that under the circumstances,with money being an issue, it wouldnt hurt to have a hone of any kind done and see what it does, if it does nothing oh well you wasted 15 bucks, then send it out and spend the money for a replate. if it works you saved a bunch of cash. you maybe could even touch up the skirt markings on the piston with some fine grit sand paper,dont remove metal as much as possible just the high spots/marks.

obvoiusly, plateing and a new cylinder and piston and rings is better and is going to last longer and be like new.
i am only saying if money is an issue one could probably get by for a while, like you said, you didnt even tear it down for this reason and it wasnt causing as issue before, i would still do new rings with a hone though no matter what while your there.

Hi

I think it's a good price, were is that shop ?

Once I have done it in steel not NIKASIL, and it's cheaper but not so good.

:cheers:
ZAGA

thats a great deal , its a big eye opener how much us british get ripped off hahaha everything seems to be cheaper some were else in the world.

cheers kris

don't you see the best and worst of people on these sites hey............. :wink: :wink:

don't re-nikasil it just phukin hone it like you were told Taamas.

OK?

get a three legged hone and some brake fluid and do it for about 2 minutes. a minute in each direction.

can we have a photo of the thrust faces of the piston please?

thank you

regards

Taffy

don't worry about the low points - they can't do any damage. worry about the high points you plonker! they are what do the damage!

your bike will run for years with a few scratches.

Taffy