Preping cyclinder for new pistons

**Mon Sep 21, 2009 11:44 am » Post: #1 » Download Post**

Plating in cyclinders looks good but it somewhat dirty,should I lightly hone or clean with solvent.would like to now what other guys do for prep.Thanks

**Mon Sep 21, 2009 12:49 pm » Post: #2 » Download Post**

If it's freshly back from the platers, I check it over to look for high spots or bad plating, then shove the piston in it!
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**Mon Sep 21, 2009 2:58 pm » Post: #3 » Download Post**

the cylinders have not been replated they are stock,so can I reuse them or is it recomended that I replate if useing new pistons?

**Mon Sep 21, 2009 9:44 pm » Post: #4 » Download Post**

Do you know for sure that they're brand new and never been plated? If so, you can clean them up with a bit of fuel soaked rag and use them with the correct piston - assuming you can / have got them.

If you aren't 100% sure you have brand new barrels then make sure you carefully check the piston and ring clearances. Or they won't stay new for very long...

In fact, new or old, be sure to check the tolerances and if it's all good, then go ahead and use them. Wink

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MC21SP Plaything
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**Tue Sep 22, 2009 12:01 pm » Post: #5 » Download Post**

these are not new they are used ,I talked with a friend and he said before reusing the cyclinder it was good to run a light hone inside so the rings would seat properly does this sound acurate or just a good cleaning check the ring gaps and go

**Tue Sep 22, 2009 8:53 pm » Post: #6 » Download Post**

i would talk to a plater to verify. nickasil is hard and takes diamond impregnated stones to hone.
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**Wed Sep 23, 2009 2:24 pm » Post: #7 » Download Post**

I'd check the piston/bore clearance (around 0.04mm is what you want if you don't trust your verni-eye gauge) and if that's OK, chuck them in and be done with it.
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**Wed Sep 23, 2009 8:22 pm » Post: #8 » Download Post**

Amen, Fontyyy! The level of OCD in here is often a bit overwhelming Laughing

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**Wed Sep 23, 2009 11:16 pm » Post: #9 » Download Post**

Thanks everyone for the advice ,did not think it was OCD. Just a fair question

**Thu Sep 24, 2009 3:45 am » Post: #10 » Download Post**

Don't worry about wb... he plays with TZR's - there's no hope for him! Wink

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**Thu Sep 24, 2009 4:21 pm » Post: #11 » Download Post**

Andy wrote:Don't worry about wb... he plays with TZR's - there's no hope for him!

ouch Andy, i also resemble that remark Smile

i have a 3ma thats in the process of being put back on the road after a decade of me leaving it in storage!
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**Thu Sep 24, 2009 8:01 pm » Post: #12 » Download Post**

Lol. No offence meant Mr. Lonestar. I just admire Fontyyy's more gung ho approach to such things Very Happy

. Much more in keeping with my own rather-be-riding-it-than-measuring-it take on motorcycling I suppose Laughing

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Stormy, a bit of work on the kinky reverse and you'll be madly in love. I promise Very Happy

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**Thu Sep 24, 2009 8:33 pm » Post: #13 » Download Post**

Is that the same gung-ho Fontyyy who seized his NSR at the weekend again? ROTFLMAO

Sorry Fontyyy!
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Andy.
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**Thu Sep 24, 2009 8:35 pm » Post: #14 » Download Post**

Well, whats the worst that could happen?

That's what occurs when you think about jetting up, don't actually do it then go out and race at 5.30pm on a late September eve.
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**Thu Sep 24, 2009 8:38 pm » Post: #15 » Download Post**

Well, if you actually ride them, that happens occasionally... Wink

'sides it's an 'onda. And we all know how unreliable they are Laughing

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