GPZList Digest, Vol 124, Issue 1

Thu Jun 15 12:11:14 PDT 2017

My cams got a look at 88,000mi (140,000km) and they had some pitting.  
It wasn't extensive, and I would have to dig to find the photos.  I 
didn't give it much of a mind and reset the valves, buttoned it up and 
kept riding.  They now have 96K (154Kkm) and things seem fine.

Here in the U.S., there are shops on E-bay that have good parts 
selections and the day will come you might find a replacement camshaft 
at a decent price.

Bill Zeller

'96 Pearl Greenish Black

Lemont, IL

On 6/15/2017 2:00 PM, gpzlist-request at lists.micapeak.com wrote:
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> Today's Topics:
>
>     1. Intake Camshaft replacement (Karl Lesch)
>     2. Re: Intake Camshaft replacement (Christopher Bowen)
>     3. Re: Intake Camshaft replacement (art johnson)
>     4. Re: Intake Camshaft replacement (Jens Pedersen)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 14 Jun 2017 23:49:06 +0000
> From: Karl Lesch <krlesch at msn.com>
> To: "gpzlist at lists.micapeak.com" <gpzlist at lists.micapeak.com>
> Subject: Intake Camshaft replacement
> Message-ID:
> 	<MWHPR19MB154940E4CDEBCF5F53DDA581ADC30 at MWHPR19MB1549.namprd19.prod.outlook.com>
> 	
> Content-Type: text/plain; charset="utf-8"
>
> Hi everyone-
>
>
>
> Longtime Lurker Karl here with a problem.
>
>
>
> My 95 GPz is in the shop for a major tune-up, and during the valve adjustment the mechanic found severe pitting on the intake camshaft.
>
> Severe enough that he recommends replacement, along with a very worn intake rocker arm.
>
> Where in the heck can I find a replacement?  It seems that no one stocks the camshaft anymore (after +20 years I shouldn't be surprised).
>
> Any suggestions are welcome - photos below.
>
>
>
> [cid:image001.jpg at 01D2E53E.E5E37D70][cid:image002.jpg at 01D2E53E.E5E37D70][cid:image003.jpg at 01D2E53E.E5E37D70][cid:image004.jpg at 01D2E53E.E5E37D70]
>
>
>
> Thanks-
>
> Karl Lesch
>
> 1995 GPz-1100 (the fast Red one)
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> ------------------------------
>
> Message: 2
> Date: Wed, 14 Jun 2017 20:39:55 -0400
> From: Christopher Bowen <c_p_bowen at yahoo.com>
> To: GPZ List <gpzlist at lists.micapeak.com>
> Subject: Re: Intake Camshaft replacement
> Message-ID: <A352EE42-E05A-41D8-8F16-9E3A49C3D0F9 at yahoo.com>
> Content-Type: text/plain;	charset=us-ascii
>
> If you can't find one stateside, maybe try these guys across the pond:
> https://www.z-power.co.uk/merchantmanager/
> Had real good luck with them years back.
>
> -Chris
> CB NYC
> 95 GPZ
>
>> On Jun 14, 2017, at 7:49 PM, Karl Lesch <krlesch at msn.com> wrote:
>>
>> Hi everyone-
>>
>>
>>
>> Longtime Lurker Karl here with a problem.
>>
>>
>>
>> My 95 GPz is in the shop for a major tune-up, and during the valve adjustment the mechanic found severe pitting on the intake camshaft.
>>
>> Severe enough that he recommends replacement, along with a very worn intake rocker arm.
>>
>> Where in the heck can I find a replacement?  It seems that no one stocks the camshaft anymore (after +20 years I shouldn't be surprised).
>>
>> Any suggestions are welcome - photos below.
>>
>>
>>
>> [cid:image001.jpg at 01D2E53E.E5E37D70][cid:image002.jpg at 01D2E53E.E5E37D70][cid:image003.jpg at 01D2E53E.E5E37D70][cid:image004.jpg at 01D2E53E.E5E37D70]
>>
>>
>>
>> Thanks-
>>
>> Karl Lesch
>>
>> 1995 GPz-1100 (the fast Red one)
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>
> ------------------------------
>
> Message: 3
> Date: Wed, 14 Jun 2017 20:03:00 -0600
> From: art johnson <arthjohnson270 at gmail.com>
> To: GPZ List <gpzlist at lists.micapeak.com>
> Subject: Re: Intake Camshaft replacement
> Message-ID: <BF191B3B-9D71-4836-BB6D-3A2018CDCE4E at gmail.com>
> Content-Type: text/plain;	charset=us-ascii
>
> Used zx1100-E1 or E2 (gpz) , weld and regrind(?), search other forums, blogs, replace engine, replace bike?
>
>
> Sent from my iPad
>
>> On Jun 14, 2017, at 5:49 PM, Karl Lesch <krlesch at msn.com> wrote:
>>
>> Hi everyone-
>>
>>
>>
>> Longtime Lurker Karl here with a problem.
>>
>>
>>
>> My 95 GPz is in the shop for a major tune-up, and during the valve adjustment the mechanic found severe pitting on the intake camshaft.
>>
>> Severe enough that he recommends replacement, along with a very worn intake rocker arm.
>>
>> Where in the heck can I find a replacement?  It seems that no one stocks the camshaft anymore (after +20 years I shouldn't be surprised).
>>
>> Any suggestions are welcome - photos below.
>>
>>
>>
>> [cid:image001.jpg at 01D2E53E.E5E37D70][cid:image002.jpg at 01D2E53E.E5E37D70][cid:image003.jpg at 01D2E53E.E5E37D70][cid:image004.jpg at 01D2E53E.E5E37D70]
>>
>>
>>
>> Thanks-
>>
>> Karl Lesch
>>
>> 1995 GPz-1100 (the fast Red one)
>> -------------- next part --------------
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>
> ------------------------------
>
> Message: 4
> Date: Thu, 15 Jun 2017 08:05:02 +0200
> From: Jens Pedersen <gpz1100abs at gmail.com>
> To: GPZ List <gpzlist at lists.micapeak.com>
> Subject: Re: Intake Camshaft replacement
> Message-ID:
> 	<CACrfP_yo3MVWeNqniH4yQWnYFiLn6aYhXVLa6zbcZiw8Dq0PuQ at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Hello Karl,
>
> Unfortunately I cannot see the pictures you've uploaded (Forbidden. You
> don't have permission to access
> /pipermail/gpzlist/attachments/20170614/08f1f4cf/attachment.jpg on this
> server.)
>
> Cam pitting was a subject on this list many years ago. Some had it and some
> didn't. Mine had (has) it. Already af the warrenty service (20.000 km) the
> exhaust cam was replaced due to pitting. However, already at the next valve
> adjustment just 10.000 km's later a couple of cams on the new camshaft
> showed signs of pitting. It was discussed here on the list, but there was
> no obvious conclusion. Some meant that the problem got worse if the driver
> tended to ride at low RPM since there would be less oil in the top end.
> Apparently Kawasaki did nothing to address the problem as replacement
> camshafts had the same sparepart number. Remembering a certain Honda model
> that also had a camshaft issue, many, including myself, were kind of
> worried about the severity of the problem. Until one day a guy wrote that
> his mechanic had told him to take it easy: "The pitting will reach a
> certain stage, and then it won't get any worse". And this is exactly how it
> has gone with mine. The pitting on each cam reaches a certain stage and
> then remains that way. The status now is that all 8 exhaust cams are pitted
> as well as 4 of the intake cams. The bike has now run 189.000 km (117.000
> miles) and the pitting has been there for a long, long time. There is
> nothing to hear when it's running, and it's running as smooth as ever. I do
> use an expensive type of oil to try to not worsen the problem (Royal
> Purple), but whether or not it actually makes any difference, I don't know.
> But it makes me sleep better ;)
>
> This site: http://www.motorcyclespareparts.eu/ has camshafts and rocker
> arms in stock, although the camshaft is not for the US model. But if
> everything else fails, I guess a EU camshaft is better than no camshaft?
> The rocker arm should be the same. Maybe you could find a US camshaft in
> good working order in a wrecked GPZ?
>
> The best of luck with the tune-up :)
>
>
> Ped
> '96 "Black Stealth" GPZ
> Denmark
>
> 2017-06-15 1:49 GMT+02:00 Karl Lesch <krlesch at msn.com>:
>
>> Hi everyone-
>>
>>
>>
>> Longtime Lurker Karl here with a problem.
>>
>>
>>
>> My 95 GPz is in the shop for a major tune-up, and during the valve
>> adjustment the mechanic found severe pitting on the intake camshaft.
>>
>> Severe enough that he recommends replacement, along with a very worn
>> intake rocker arm.
>>
>> Where in the heck can I find a replacement?  It seems that no one stocks
>> the camshaft anymore (after +20 years I shouldn't be surprised).
>>
>> Any suggestions are welcome - photos below.
>>
>>
>>
>> [cid:image001.jpg at 01D2E53E.E5E37D70][cid:image002.jpg@
>> 01D2E53E.E5E37D70][cid:image003.jpg at 01D2E53E.E5E37D70
>> ][cid:image004.jpg at 01D2E53E.E5E37D70]
>>
>>
>>
>> Thanks-
>>
>> Karl Lesch
>>
>> 1995 GPz-1100 (the fast Red one)
>> -------------- next part --------------
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>> ______________________________________________________________________
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>
> End of GPZList Digest, Vol 124, Issue 1
> ***************************************