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Air passages from head to reed valve assembly
- Madtrout
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22 Dec 2015 05:18 - 22 Dec 2015 05:35 #703964
by Madtrout
Air passages from head to reed valve assembly was created by Madtrout
Greetings all. I have just removed the head from my 1982 GPZ750 with 87,000 miles for its first ever top end rebuild. I noticed the passages from the head to the reed valve assembly is clogged on both sides. I can't tell if this is some kind of rubber plug that has degraded or just cooked and clogged oil. If anyone knows whether this should be cleaned up please let me know. All the best, Mark
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Last edit: 22 Dec 2015 05:35 by Madtrout.
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- floivanus
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22 Dec 2015 05:27 #703966
by floivanus
my bikes; 80kz1000(project), 77 gl1000, 74 h2 (project)
Past; 78 kz1000, 83 kz550
Andrew
Replied by floivanus on topic Air passages from head to reed valve assembly
It's most likely carbon build-up, if you are adamant about getting the fresh air system working clean them out, if not it really wont affect anything, many people just block them off
my bikes; 80kz1000(project), 77 gl1000, 74 h2 (project)
Past; 78 kz1000, 83 kz550
Andrew
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- SWest
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- 10 22 2014
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22 Dec 2015 05:30 #703967
by SWest
Replied by SWest on topic Air passages from head to reed valve assembly
Welcome. Looks like a head refresh is timely. Pics more pics.
Steve
Steve
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- redhawk4
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22 Dec 2015 07:05 - 22 Dec 2015 07:06 #703971
by redhawk4
1978 KZ1000A2 Wiseco 1075 kit
1977 KZ650B1
1973 Triumph Tiger TR7V
1968 BSA Victor Special 441
2015 Triumph Thunderbird LT
1980 Suzuki SP400
Old enough to know better, still too young to care
Replied by redhawk4 on topic Air passages from head to reed valve assembly
I'd be more worried about the amount of black carbon build up overall. It looks like either someone didn't change the oil very often, or the engine is worn putting a lot of deposits in the oil, or both..
1978 KZ1000A2 Wiseco 1075 kit
1977 KZ650B1
1973 Triumph Tiger TR7V
1968 BSA Victor Special 441
2015 Triumph Thunderbird LT
1980 Suzuki SP400
Old enough to know better, still too young to care
Last edit: 22 Dec 2015 07:06 by redhawk4.
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- Nessism
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22 Dec 2015 07:59 #703973
by Nessism
Replied by Nessism on topic Air passages from head to reed valve assembly
It's carbon build up. Perfectly normal for a bike with that many miles on it.
When rebuilding my 750 I tapped the holes and installed metal plugs. If you just want to restore the bike back to stock just clean out the carbon during the head refurbishment process. No big deal.
When rebuilding my 750 I tapped the holes and installed metal plugs. If you just want to restore the bike back to stock just clean out the carbon during the head refurbishment process. No big deal.
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- redhawk4
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22 Dec 2015 09:15 - 22 Dec 2015 09:17 #703984
by redhawk4
Oops I missed the 87k miles in the original post, yes that would be normal, particularly given some wear starts to be inevitable adding to the carbon build up. It's impressive the miles these Kawasaki's are capable of when only a few years before many other bikes needed attention by 12k miles.
1978 KZ1000A2 Wiseco 1075 kit
1977 KZ650B1
1973 Triumph Tiger TR7V
1968 BSA Victor Special 441
2015 Triumph Thunderbird LT
1980 Suzuki SP400
Old enough to know better, still too young to care
Replied by redhawk4 on topic Air passages from head to reed valve assembly
Nessism wrote: It's carbon build up. Perfectly normal for a bike with that many miles on it.
When rebuilding my 750 I tapped the holes and installed metal plugs. If you just want to restore the bike back to stock just clean out the carbon during the head refurbishment process. No big deal.
Oops I missed the 87k miles in the original post, yes that would be normal, particularly given some wear starts to be inevitable adding to the carbon build up. It's impressive the miles these Kawasaki's are capable of when only a few years before many other bikes needed attention by 12k miles.
1978 KZ1000A2 Wiseco 1075 kit
1977 KZ650B1
1973 Triumph Tiger TR7V
1968 BSA Victor Special 441
2015 Triumph Thunderbird LT
1980 Suzuki SP400
Old enough to know better, still too young to care
Last edit: 22 Dec 2015 09:17 by redhawk4.
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