exhaust valves crappy what how to clean them

  • donthaveakawman
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09 Jan 2013 05:04 #566502 by donthaveakawman
Replied by donthaveakawman on topic exhaust valves crappy what how to clean them
maybe some kerosene in the clean air duct?
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  • guitargeek
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09 Jan 2013 05:50 #566504 by guitargeek
Replied by guitargeek on topic exhaust valves crappy what how to clean them

donthaveakawman wrote: maybe some kerosene in the clean air duct?

What do you think Seafoam is?
1980 KZ750-H1 (slightly altered)
1987 KZ1000-P6 "Ponch"
1979 GS1000 "Dadzuki"
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  • donthaveakawman
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09 Jan 2013 06:01 - 09 Jan 2013 06:04 #566506 by donthaveakawman
Replied by donthaveakawman on topic exhaust valves crappy what how to clean them
isn't that the stuff with the white whale on the label?


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09 Jan 2013 10:06 #566518 by 650ed
Replied by 650ed on topic exhaust valves crappy what how to clean them
youdiyauto.blogspot.com/2012/09/what-is-...eafoam-products.html
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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  • Motor Head
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09 Jan 2013 10:39 #566521 by Motor Head
Replied by Motor Head on topic exhaust valves crappy what how to clean them

bountyhunter wrote: Not that anybody asked, but that buildup is normal. I wish mine were that clean. If you really want to see a bunch of carbon crud, you should see whats on the inside surfaces of the valve faces and head.

What cleans it: the machine shop drops the head into something affectionately known as a "hot tank" which is filled with bubbling heated chemicals..... and you will notice nobody putting their hand in there. :ohmy:

If the valves are free you can soak them in Chemdip and take a stiff nylon brush to them.


Thats pretty much normal deposits for these motors over time. I'd be Much more worried about the valves themselves are seating/ sealing. Then if they leak, are the clearances correct? If they are OK and the valves leak, then you have a reason to pull the head off. If those valves are pitted deep enough, worn, etc, you'd be replacing them as part of a valve job. Otherwise don't waste to much effort on a bit of deposits.
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 Jan 2013 12:10 #566529 by martin_csr
Replied by martin_csr on topic exhaust valves crappy what how to clean them
[IMG


Berryman's B-12 Chemtrol is another cleaner-type product.
I would do what MotorHead & others say and do the valve clearance & compression checks.... the checks are easy.
1981 KZ650 Competition Sports and Road
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  • donthaveakawman
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09 Jan 2013 17:25 #566577 by donthaveakawman
Replied by donthaveakawman on topic exhaust valves crappy what how to clean them
In the gas tank right? I am not messing with a bunch of t-fittings. this is mainly because the the valves won't close if they are too gummed up.
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  • lushbaugh
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09 Jan 2013 19:38 #566613 by lushbaugh
Replied by lushbaugh on topic exhaust valves crappy what how to clean them
gastank , oil, and or fog the intake with it in a squirt bottle.
79 kz1000 ltd all apart
the best advice i can give is dont take dnthavakawmans advice..
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  • donthaveakawman
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09 Jan 2013 21:47 #566632 by donthaveakawman
Replied by donthaveakawman on topic exhaust valves crappy what how to clean them
isn't that what spray carburetor cleaner does? 4 bucks a can vs 10. :huh:
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  • donthaveakawman
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09 Jan 2013 21:49 #566633 by donthaveakawman
Replied by donthaveakawman on topic exhaust valves crappy what how to clean them
I put it back together last night, going to have to leave the crashbar off there and be careful because it is tighter than snug with these pipes. I'll take a picture when I put the daytona handlebars on there. crap I need to drill a hole for the throttle.
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  • DoubleDub
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10 Jan 2013 13:51 #566701 by DoubleDub
Replied by DoubleDub on topic exhaust valves crappy what how to clean them
:huh:
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10 Jan 2013 14:36 #566706 by turboking
Replied by turboking on topic exhaust valves crappy what how to clean them
I'm a seafoam believer B) ........... I use it in everything that takes fuel :woohoo: ........


my current stock for me.

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2005 Kawasaki mean streak
2000 325 H.P. mcXpress turbo Hayabusa
1979 kz 1000 mk II ATP turbo
1975 Z1 960 cc Mr. Turbo
1975 Z1 1428 big block ATP turbo
1976 Kz900 1103 cc ATP turbo
1985 GS 1150E
1983 GS 1100E
1997 Suzuki Bandit 1200S
2001 Kawasaki EX 500 Ninja
1972 Honda cb750 (836cc turbo)
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