Maintenance & Technical > KX500 Original
First Top End rebuild - Need advice - Pics included
maddoggy:
hey blackhills, i have a friend that cleaned the inside of his ktm550 mxc pipe by chucking up an old piece of speedo cable in his drill. he frayed the end out and put a 90 degree bend on the end and went to town on the pipe. i couldn't believe how muck soot he got out of it. the same method may work for you on those "hard to get to" places on the exhaust ports. MADDOGGY
stewart:
go to the car piant store for car body shops... buy 5 gallon can of piant thinner,,, let cylinder soak in it over night till comes out like new ps ithink there are cheap piant thinners that dont work as good and you can ussally blow carbon off with compreesd air when you get done soaking cylinder
BlackHills:
Thanks for the tips.
I finally did get the allen bolt (on the KIPS assembly) to break free, I had to put the cylinder back on the bike so I could get more leverage. After pulling out all the parts I have officially decided to run good quality 2 stroke oil at a higher ratio. Those things are just COVERED in carbon build up. I am pretty amazed the bike still ran as good as it did. I have been using whatever cheap oil I can find and mixing it at 32:1, so I am going to use some quality oil at 50:1 from now on.
Luckily or unfortunately I won't have to remove carbon from my exhaust since I am sending it to the piperepair.com guys to fix an incident I had with a rock while climbing.
I think I will try the paint thinner method to remove all the carbon. It seems pretty simple and will get all the hard to reach spots.
doordie:
--- Quote from: kaw rider on January 27, 2008, 08:56:37 AM ---has long you don't have this problem your ok.
--- End quote ---
OR like this! :-D
Jeeks:
I use Permatex spray gasket remover. Comes right off. Two cans will be enough, make sure you use nitril gloves.
Ball hone the cylinder
Polished exhaust port
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