KX85 cylinder wanted

**Jebus** · 2nd February 2012, 13:30

Hey, My partners 03 KX85 motor has a damaged bore, does ayone have or know of a good condition useable KX85 cylinder for sale?

Just trying to get it up and going quickly without spending a fortune.

Thanks!

**FJRider** · 2nd February 2012, 13:38

How badly damaged ... ???

**Jebus** · 2nd February 2012, 13:45

Not really bad, just rough scoring. Not good enough to use though. It had 85psi and wouldnt run before I pulled it down.

I can get a picture up shortly? Boring and rechroming is a bit more than im wanting to spend.

**FJRider** · 2nd February 2012, 13:58

Is there any reason a HONE would not remove it ... too deep ... ????

**Jebus** · 2nd February 2012, 14:09

Im not 100% Sure, ill try get some good pictures and see what you think. Is it possible to hone the cylinders without damaging the chrome? I havnt done a 2 stroke rebuild before sorry, so pretty new to dealing with these.

**FJRider** · 2nd February 2012, 14:20

Take it to a bike shop and ASK ... (or ask here

)

**Katman:Me** · 2nd February 2012, 14:46

Originally Posted by Jebus

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Im not 100% Sure, ill try get some good pictures and see what you think. Is it possible to hone the cylinders without damaging the chrome? I havnt done a 2 stroke rebuild before sorry, so pretty new to dealing with these.

Nikasil bores don't get honed.

**Jebus** · 2nd February 2012, 15:42

Sweet thanks.

Still looking for a good cylinder if anyone has one.

**doddzee** · 2nd February 2012, 16:04

Thought of replating it?

http://www.kiwibiker.co.nz/forums/sh...nder-replating

**F5 Dave** · 2nd February 2012, 16:42

Originally Posted by Katman

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Nikasil bores don't get honed.

Well yes they do, but. . . best not try this at home. Or unless you have the right hone.

Clearly they are honed when first plated. After that is at risk.

Your answer is mostly right, just being a pendent.

oh yeah you won't find a good unused cylinder. They get used until damaged.

Your bike is largely worthless unless you plate it, so you'll have to suck it up & get a quote.

Try NZcyl, motocross parts nz do good prices on pistons. [Checks], $99 for a piston kit, not bad at all.

**Pornstar** · 2nd February 2012, 16:45

are you sure its scored? or is there piston stuck to it? if its the latter then some hydrochloric acid should dissolve it leaving the bore.

**barty5** · 2nd February 2012, 17:08

get it sleeved half the price or recoating is around 550 failing that try ebay

**F5 Dave** · 2nd February 2012, 17:21

only sleeving jobs I've seen were around the 6hundy mark & that's a poxy fix.

USchrome were quite cheap & good to deal with + impeccable quality. used before NZ cyl.

$198 US at todays exchange, but + freight both ways. See what local will do for you.

http://www.usnicom.com/price.asp

**Crasherfromwayback** · 2nd February 2012, 17:24

Originally Posted by F5 Dave

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Clearly they are honed when first plated. After that is at risk.

.

I can't recall ever seeing a Kawasaki Electrofusion cyl with hone marks on it from new.

**F5 Dave** · 2nd February 2012, 17:27

They plate them & have to hone them to correct size. There is no way they'd get so lucky that it all went on straight & true & the right thickness tp get the right clearance. The hone they use will be a fixed diameter & may be real thin grit so look smooth. Quite unlike a iron bore hone.

All my replates have had hone marks. Can't say I rememebr the kdx having much in the way of marks, but it was flogged.

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