1988 KDX 200 - Nikasil barrel - hone/rebore ?

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davecoates
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1988 KDX 200 - Nikasil barrel - hone/rebore ?

Post by davecoates »

I bought a my bike in pieces and discovered the barrel has a score (and the nikasil is also pretty much worn out entirely). I would like to figure out if I need to bore or just hone it. Either way it seems I need to undergo the nikasil plating process, but how do I know whether a hone will be enough?

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KDXGarage
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Re: 1988 KDX 200 - Nikasil barrel - hone/rebore ?

Post by KDXGarage »

The stock cylinder has Kawasaki's Electrofusion coating. The service manual states no honing. In a few areas, there isn't too much coating to do anything to. Here's a summary of what you will find on the internet:

Generally, honing a plated cylinder is a no-no. It gets diamond honed after plating and after that, the guy at home uses a light oil and a green Scotch Brite pad to deglaze.


Would you be opposed to letting the replating company determine whether it needs to be bored or repaired before plating? They usually can sell a piston kit of the correct size.

Look for Langcourt, Millenium or others.
Thank you for participating on kdxrider.net. :bravo:
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davecoates
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1988 KDX 200 - Nikasil barrel - hone/rebore ?

Post by davecoates »

I've managed to find a company in SA that does barrel repairs. They've honed and plated it and it looks BRAND NEW! :D
http://www.cylinders.co.za if anyone was interested..
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fuzzy
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Re: 1988 KDX 200 - Nikasil barrel - hone/rebore ?

Post by fuzzy »

Nice. That's arguably the best KDX engine ever made for normal trail use.
'91 KDX 200 Project $300 KDX
'95 KDX 200 Project $600 KDX
'94 WR 250 Always a project
Yoda
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Re: 1988 KDX 200 - Nikasil barrel - hone/rebore ?

Post by Yoda »

Davecoates, how has the playing held up?
Been told by some mates that the local companies mess it up but think I’m going to go with your suggestion.
Have a 93 KDX 200 that needs some love
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