Carbon buildup on valves

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08 May 2013 11:14 #586309 by stcyreeve
Carbon buildup on valves was created by stcyreeve
How do I remove the carbon buildup from my valves. They are in great shape except for the carbon. I have tried soaking them in Chem-Dip overnight with no luck. Any suggestions would be of great help.

Thank you.

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08 May 2013 16:09 #586358 by bountyhunter
Replied by bountyhunter on topic Carbon buildup on valves
maybe a brass bristle wire brush? Get them at harbor freight.
1979 KZ-750 Twin

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08 May 2013 16:21 #586364 by Dr. Gamma
Replied by Dr. Gamma on topic Carbon buildup on valves
If they are out of the head. Tape up the stems and bead blast them. Glass bead won't hurt them. Been cleaning valves that way since back in 1974!!!
1972 H2 750 Cafe Racer built in 1974.
1976 KH400 Production Road Racer.
1979 Kz1000 MK. II Old AMA/WERA Superbike.
1986 RG500G 2 stroke terror.
1986 GSXR750RG The one with the clutch that rattles!

Up in the hills near Prescott, Az.
The following user(s) said Thank You: wireman

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08 May 2013 18:22 #586388 by 650ed
Replied by 650ed on topic Carbon buildup on valves
If they are out of the head maybe try oven cleaner. Just don't use it on aluminum parts. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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08 May 2013 20:06 #586407 by APE Jay
Replied by APE Jay on topic Carbon buildup on valves
Wire wheel on a bench grinder
www.KZzone.com

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08 May 2013 21:39 #586421 by Haybus
Replied by Haybus on topic Carbon buildup on valves

APE Jay wrote: Wire wheel on a bench grinder


+1, gets them clean as a whistle.
1976 KZ900 LTD (sort of)
2005 FJR
2009 Hayabusa
www.kzrider.com/forum/11-projects/557845...-streetfighter-build

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  • Motor Head
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  • FIX UP YOUR BIKE RIGHT AND CHEAP
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08 May 2013 22:12 #586438 by Motor Head
Replied by Motor Head on topic Carbon buildup on valves

Haybus wrote:

APE Jay wrote: Wire wheel on a bench grinder


+1, gets them clean as a whistle.

Yep, what Jay Said.
+2
1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...

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09 May 2013 00:15 #586495 by MDawnz1
Replied by MDawnz1 on topic Carbon buildup on valves
What Jay said ,
Just use gloves and safety glasses.
The valves can get warm and that carbon will fly.
1974 Z1a, still 903

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09 May 2013 02:13 #586510 by APE Jay
Replied by APE Jay on topic Carbon buildup on valves
I am not a big fan of gloves anywhere close to spinning machines. When I was learning the machine shop trade, back before enclosed CNCs like we have now, we were taught no long sleeves, gloves, watches rings, anything that could get caught and pull your hand into the machine.
www.KZzone.com
The following user(s) said Thank You: wireman

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09 May 2013 02:28 #586512 by bluezbike
Replied by bluezbike on topic Carbon buildup on valves
Very , very true.....include ties and pens in shirt pockets etc. even safety glasses need to be secured behind the head, I have seen (twice) pairs slip off the nose only to be launched quite rapidly into other things or people by spinning tools.
79 KZ 1000 LTD
77 KZ 1000 B1 LTD (awaiting electrical resurrection)

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09 May 2013 07:16 #586525 by Patton
Replied by Patton on topic Carbon buildup on valves
And don't let this happen. :pinch:



Good Fortune! :)
1973 Z1
KZ900 LTD

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09 May 2013 09:10 #586545 by 650ed
Replied by 650ed on topic Carbon buildup on valves

APE Jay wrote: I am not a big fan of gloves anywhere close to spinning machines. When I was learning the machine shop trade, back before enclosed CNCs like we have now, we were taught no long sleeves, gloves, watches rings, anything that could get caught and pull your hand into the machine.


In a machine shop class I took in school the teacher had a white sweater in a glass case over the door. The right sleeve of the sweater was totally unraveled and the sweater was splattered big time with dried blood. It had belonged to a student who didn't listen about wearing loose clothes. The teacher said the school board would not permit him to display the mangled finger in a jar of formaldehyde or he would have. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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