81' KZ750-4 valvetrain Question

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01 Jan 2013 21:50 #565485 by kzcafe750_24
81' KZ750-4 valvetrain Question was created by kzcafe750_24
Hey guys,
Does anybody know if the stock intake and exhaust valves have satellite valve coating on them. I am just wondering, if I should replace the valves or can they be grinded. I know if you grind a valve that has satellite coating, the valve is junk. If anybody can give me some information on this or point me in the right direction that would be great.

Thanks,
1981 Kz 750-4 LTD - Wiseco 810 Big Bore,Ported cylinder head, GPZ 750 Cams,Dyna Ignition(DynaS,Green Coils,DRL400 2stage Revlimiter), RC 4 into 1 fitted with Yoshi muffler, ZR550 Swing arm, ZR550 Rear Rim, ZX750turbo front end SuperFlo Dyno Tuned- 68WHP&43WTq(ftlbs)
1986 Honda Rebel 250 (Stock)
1985...

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01 Jan 2013 23:45 #565500 by Motor Head
Replied by Motor Head on topic 81' KZ750-4 valvetrain Question
None that I know of. Very grindable, just check margin when done. You can get a full set of Stainless pretty cheap, $104 for 4 o Feebay from PSP.
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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02 Jan 2013 00:30 #565504 by steell
Replied by steell on topic 81' KZ750-4 valvetrain Question
It's "stellite", and it's some interesting stuff, even though it's not used in KZ motors.

Check out the story at Wikipedia
KD9JUR

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02 Jan 2013 00:38 #565505 by wireman
Replied by wireman on topic 81' KZ750-4 valvetrain Question
Didn't ford use to use them in their heavy truck motors? B)
posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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02 Jan 2013 00:44 #565507 by Motor Head
Replied by Motor Head on topic 81' KZ750-4 valvetrain Question
Its used a lot in modern valves. These days very common to have the Coating. That's why valve jobs are usually good for 150K + in a modern engine. Don't forget about the modern Valve seats also, which are not in the KZ motor either.
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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02 Jan 2013 10:02 #565534 by undiablo
Replied by undiablo on topic 81' KZ750-4 valvetrain Question

Motor Head wrote: None that I know of. Very grindable, just check margin when done. You can get a full set of Stainless pretty cheap, $104 for 4 o Feebay from PSP.


Could you tell me where to buy a full set of 8 valves? I usually find them at Ebay, but not as a set... NOS are very high... Thanks!
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires

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02 Jan 2013 10:26 #565536 by Motor Head
Replied by Motor Head on topic 81' KZ750-4 valvetrain Question

undiablo wrote:

Motor Head wrote: None that I know of. Very grindable, just check margin when done. You can get a full set of Stainless pretty cheap, $104 for 4 o Feebay from PSP.


Could you tell me where to buy a full set of 8 valves? I usually find them at Ebay, but not as a set... NOS are very high... Thanks!

Check PSP Ebay Store here. He should have a full set for your bike in stock, APE Valves.
stores.ebay.com/Pit-Stop-Performance-Sto...rksid=p2047675.l2563
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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03 Jan 2013 00:10 #565649 by kzcafe750_24
Replied by kzcafe750_24 on topic 81' KZ750-4 valvetrain Question
Ten 4 guys thanks for the info, Ya sorry didn't remember what it was called, but I figured satellite was close enough where someone could get what I ment. And Yes, I know that stellite coating is used in modern equiptment, as I am a motorcycle technician at a Honda, Polaris, and Victory dealer, and all that equiptment runs the coating on their valves; I just did not know if the KZs' had that technology back in the 80s.
Thanks Again,
1981 Kz 750-4 LTD - Wiseco 810 Big Bore,Ported cylinder head, GPZ 750 Cams,Dyna Ignition(DynaS,Green Coils,DRL400 2stage Revlimiter), RC 4 into 1 fitted with Yoshi muffler, ZR550 Swing arm, ZR550 Rear Rim, ZX750turbo front end SuperFlo Dyno Tuned- 68WHP&43WTq(ftlbs)
1986 Honda Rebel 250 (Stock)
1985...

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