Maintenance & Technical > KX500 Original
Power Valve Assembly
Friar-Tuck:
I Have a tendency to over do it...however the high temp grease isn't supposed to burn.
So the gears,rack,pins , pin pockets and sleeves the barrels ride in.
I used to use two stroke oil until it was pointed out to be this will burn and may help start carbon to build up.
The quality of the oil is much better now, but I understand the idea...
The other thing to take into consideration is that motocross bikes have a very high maintenance shedual.
It's no excuse, but I really can't afford new rings every 5 meetings or a piston and rings every 10.
Or something like that.. and while all that was apart I'm sure the powervalve assy. got serviced.
Soo.. I grease the moving parts where any contact is made,and wipe the cyl. and piston with pre-mix oil.
Piston rings,bearings (top and bottom) get a squirt or two to make sure they're lubed as it they will pick-up oil after you get her fired up. All I did by slather everything with oil previously was create a great big smoke screen and foul spark plugs...
Tuck\o/
Speedway73:
What about having the valves teflon,ceramic or similiar type coated??
Friar-Tuck:
How Fast can you afford to go? :-D
I would love to be able to not only send off the piston for ceramic top and bottom coat,piston skirt, cyl. head. intake ports, crankcase, and exhaust. The Idea is to keep as much heat as possible working, and less transfer to the cyl and cases. All bearings and tranny could be coated as well.
Oh the possibilities !
Tuck\o/
http://www.techlinecoatings.com/hi-performance/bs-internal-engine-coatings.html
http://www.performancecoatings.com/index2.html
http://www.hotrod.com/techarticles/engine/hrdp_0612_engine_coatings/internal_coating_test.html
Goat:
--- Quote from: kawi4ever on March 28, 2010, 01:18:27 AM ---Thanks for all the responses.. Do you guys use 2-stroke oil on the valves them selves and the grease on just the gears?
--- End quote ---
I put a nice even coat of the assembly lube (moly grease) on any part of the power valve that touches the jug including the gears. Never had a problem.
I would love to get all the parts ceramic coated. They would last so much longer because they wouldn't be absorbing so much heat. May even be easier to clean the carbon build up during rebuild. If any even builds up on ceramic coat? So many mods and so little funds.
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