KX Riders
Maintenance & Technical => KX500 Original => Topic started by: martinfan30 on March 11, 2009, 06:34:46 AM
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Just ordered a window mod piston, cometic gaskets and V2 reed block from stewart today. So I pulled my top end apart and the top of the piston looked almost new, just a little carbon. Now for the cylinder pics. Tell me what you think, please.
(http://i164.photobucket.com/albums/u33/martinfan30/th_100_8903.jpg) (http://s164.photobucket.com/albums/u33/martinfan30/?action=view¤t=100_8903.jpg)
(http://i164.photobucket.com/albums/u33/martinfan30/th_100_8904.jpg) (http://s164.photobucket.com/albums/u33/martinfan30/?action=view¤t=100_8904.jpg)
(http://i164.photobucket.com/albums/u33/martinfan30/th_100_8905.jpg) (http://s164.photobucket.com/albums/u33/martinfan30/?action=view¤t=100_8905.jpg)
(http://i164.photobucket.com/albums/u33/martinfan30/th_100_8906.jpg) (http://s164.photobucket.com/albums/u33/martinfan30/?action=view¤t=100_8906.jpg)
(http://i164.photobucket.com/albums/u33/martinfan30/th_100_8907.jpg) (http://s164.photobucket.com/albums/u33/martinfan30/?action=view¤t=100_8907.jpg)
(http://i164.photobucket.com/albums/u33/martinfan30/th_100_8908.jpg) (http://s164.photobucket.com/albums/u33/martinfan30/?action=view¤t=100_8908.jpg)
(http://i164.photobucket.com/albums/u33/martinfan30/th_100_8909.jpg) (http://s164.photobucket.com/albums/u33/martinfan30/?action=view¤t=100_8909.jpg)
(http://i164.photobucket.com/albums/u33/martinfan30/th_100_8912.jpg) (http://s164.photobucket.com/albums/u33/martinfan30/?action=view¤t=100_8912.jpg)
(http://i164.photobucket.com/albums/u33/martinfan30/th_100_8913.jpg) (http://s164.photobucket.com/albums/u33/martinfan30/?action=view¤t=100_8913.jpg)
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shipped parts today..is the chrome flaked ..the stock cylinders are pron to the nikasil being thin,,,, i like max power
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Below the exhaust port, there are some very, very tiny little pits. Around the top of the two smaller intake ports, there is a very small section where I see bare alu.
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As long as there is no flaking at the port edges and no deep scratches it should be good. It's hard to tell from your pics, need a bit more focus or a macro setting. You will be very happy with the windowed piston with the V2. Cam.
*** we posted at the same time. You might want to take some good pics of ths spots you are in question and re-post them.
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I can feel some extremely light scratches on the bore below the exhaust port. No bare alu. anywhere on the bore.
I'm unsure of my camera. I'll take a couple piston pics.
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(http://i164.photobucket.com/albums/u33/martinfan30/100_8914.jpg)
(http://i164.photobucket.com/albums/u33/martinfan30/100_8915.jpg)
(http://i164.photobucket.com/albums/u33/martinfan30/100_8916.jpg)
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Just answered my own question I think. A spot the size of a pocket screw driver blade above the exhaust port shows flaking.
(http://i164.photobucket.com/albums/u33/martinfan30/th_100_8919.jpg) (http://s164.photobucket.com/albums/u33/martinfan30/?action=view¤t=100_8919.jpg)
SOOOO.... What to do? Re-coat? Sleeve? Whats better, cheaper.. Sources?
What if I ran it on the new piston?? Things are tight, so I have to be careful, but I dont want to put together a grenade either.
Thanks so much fellas!
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dont sleeve the k5 cylinder
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OK. So I should have this thing recoated then, huh? Were to do it?
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max power replates
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Eric gorr's forward motion [he used to own Max Power] or just send it to US Chrome your self , thats where both of them would send it to anyway. Do Not send it to Langcourt I had them do one and only one had to hella-coil most of the thread in the cylinder. I've also heard good things about Millenium.
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I got a good quote from Millenium today. 189 for replate. Theres no cracks or serious gouges, so I think that'd be all.
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I think you are making a wise decision on the replate. Run some good oil and you will have a nice bike that will last a long time. Cam.
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I think you are making a wise decision on the replate. Run some good oil and you will have a nice bike that will last a long time. Cam.
Like Super M? Just switched to it, from Maxima Castor.
You are right, I figure its lasted 9 years and the wear is kinda minimal.. So a good o/h and good oil will at least last as long.
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there is a lot off difference in replating jobs that i have seen .. i would stick with max power
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I think Max Power puts a little more to the process on the plating than others. They have a good write-up on their process. Good plater will let you ride for years without any hassle. They have prices posted on their web site and they stand by them. It took just 2 weeks to get my engine back for my 250.
I used a cooler to ship it. Pack with paper and no crate or worrying about your motor getting bounced around by the Fed ex Soccer team.
I've heard about coating pistons, would that be worth it?
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there is a lot off difference in replating jobs that i have seen .. i would stick with max power
I couldn't get the site to come up???
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http://maxpower-engines.com/
try that.
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Has someone had bad experience with Millenium?
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I have sent many to US Chrome and Power Seal with great results from both. If you're on the east coast Power Seal is a great option, as I dont know anyone with a quicker turnaround.
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martin we are both in the same boat lol. I just picked up a 95 and it had a slow coolent leak. So I ripped the cylinder off and order the weisco mod piston. My stock piston and cylinder are in perfect shape. Good luck
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martin we are both in the same boat lol. I just picked up a 95 and it had a slow coolent leak. So I ripped the cylinder off and order the weisco mod piston. My stock piston and cylinder are in perfect shape. Good luck
You lucky...
Thats cool, we can compare notes. I chose Millenium for the replate. Off to them today.
I'm stoked to see how she runs with the window piston, V force 2 reed block, the porting (from the instructions here), KIPS mod, and with set up squish...
Any estimate on power for that at 2000ft? And how much could be lost near 4800FT?
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I also clean up my ports and I still need to buy the vforce. But I just pick up a 44mm lectron. Hey I don't ride this bike evry day so I mite as well make it rip.
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I went through and found a ton of casting flaws in the ports. Some as thick as an 1/8"! I cant see how subtle changes like that wont help.