Do I need a replate?

frankenschwinn · Post by **frankenschwinn** » 08:07 pm Jan 04 2011

Some pics:

Can I get another topend out of this thing?

Post by **Indawoods** » 08:38 pm Jan 04 2011

Needs plated....

kdxmaniac · Post by **kdxmaniac** » 08:39 pm Jan 04 2011

from looking at the pics, i think you are about time for a replate. 3rd + 4th pics from the bottom.....looks like its pretty thin, and the lines look like border line..........but i cant say for sure from the pics. all i can say is, if it was mine, i would replate.

BobbyZ · Post by **BobbyZ** » 01:45 pm Jan 05 2011

my vote is replate...........granted it's tough to tell from the pics but IMHO this is one of those questions where if in doubt enough for most people to have to ask,it's usually time for it.

Post by **Mr. Wibbens** » 03:51 pm Jan 05 2011

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frankenschwinn wrote:Some pics:

Can I get another topend out of this thing?

Is this before or after you hit it with a Scotchpad?

frankenschwinn · Post by **frankenschwinn** » 09:15 pm Jan 05 2011

Before. It looks a bit better now. Measures within spec. Would be better to plate but It can go another shorter round. Replacing piston, rings and cleaning kips while its apart.

Post by **Julien D** » 07:33 am Jan 06 2011

Good luck with it! You might need it.....

gregp · Post by **gregp** » 07:45 am Jan 06 2011

I don't know....that cylinder really looks "OK" to me. There are a couple of light scores, but nothing that would make me send it out right away unless I had money to burn, and/or I was seeking perfection. The plating looks to be entirely intact, and in good shape for the most part. I see no flakeing at all. Flakeing is pretty obvious when you see it. KX500's were famous for this, and I have seen several of them in bad shape.
I would clean it up, install a new piston and rings, and run it.
**JMO**

frankenschwinn · Post by **frankenschwinn** » 08:21 am Jan 06 2011

juliend wrote:Good luck with it! You might need it.....

hopefully it will get me through the divorce... Thats the main goal.

Cturbo · Post by **Cturbo** » 09:08 am Jan 06 2011

The cylinder looks OK. I would put a forged piston to mitigate the damage a less than perfect bore will do. My cylinder was worst than that two seasons ago and I still riding it. In my case I notice more piston wear than expected.

Post by **Julien D** » 09:20 am Jan 06 2011

Agree on the forged piston. I did a similar thing with the first top end on my bike. It was barely in spec, with wear on the bottom of the cylinder similar to yours. It destroyed a cast piston in short order. I took it out just in time. The skirts had started to develop stress cracks from piston slap after just a few months time.

frankenschwinn · Post by **frankenschwinn** » 10:04 am Jan 06 2011

I have a Wiseco piston kit in hand. I will not even attempt to argue the merits of not plating it now as I know that is the right thing to do. just can't do it right now if not absolutely necessary.

Post by **Varmint** » 10:41 am Jan 06 2011

Mine had little grey lines like yours (see below) and I did not replate. I hope those little white linty things are actually lint and not marks.

Post by **Julien D** » 11:15 am Jan 06 2011

frankenschwinn wrote:I have a Wiseco piston kit in hand. I will not even attempt to argue the merits of not plating it now as I know that is the right thing to do. just can't do it right now if not absolutely necessary.

It'll run.

Post by **Mr. Wibbens** » 01:44 pm Jan 06 2011

Mine looked similar to the OP's before I hit it with the Scotchpad

I looked but I guess I did not take any before pics

Post by **Indawoods** » 01:49 pm Jan 06 2011

Looks perfect Wibby!

Post by **Mr. Wibbens** » 01:52 pm Jan 06 2011

It was a big surprise

But I'm sure I had bloody knuckles

Oh you know what I used? I used a scothpad sponge. It was easier and did not snag on the ports as bad

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Do I need a replate?

Do I need a replate?

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