shims... what a friggin' pain!

JOHN SOLIDAY johnsoliday at
Fri Aug 24 14:54:24 PDT 2007

Sounds just like the ZX10.  I had no problem doing it twice although I did "lose" a shim somewhere and I think it went down the cam chain tunnel but did not show up in the external portion.  That was over 20K before I sold the bike so that shim is somewhere in there and was never a problem when I sold the bike with 35K on it.

  ----- Original Message ----- 
  From: 1KPerDay<mailto:1kperday at> 
  Cc: Message an GPZ List<mailto:gpzlist at> 
  Sent: Friday, August 24, 2007 1:51 PM
  Subject: Re: shims... what a friggin' pain!

  The GPz is relatively easy and you don't really need a manual (though
  you should get one). The shims rest in little cups on top of the valve
  springs, and there are rocker arms that rest between the cam lobes and
  the shims. You slide the rocker arms out of the way (spring loaded)
  and you can get the shims out.

  You DON'T have to drain the radiator as spec'ed in the manual, and you
  don't even have to remove the timing cover. Pull the tank, pull the
  spark plug caps, pull the breather hoses off the little tube thingies
  on top of the valve cover, and pull the radiator hose and all the
  wires and cables and crap up between the frame rails and tie them
  there. Push the lip of the front heat shield down below the level of
  the valve cover and remove the chrome bolts that secure it, then pop
  it (leave the gasket stuck to the cylinder head if possible).

  You can maneuver the valve cover out the right side if you wiggle and
  swear at it a bit.

  Bump the starter to get the lobes pointing up, check, swap, etc.

  Getting the shims in and out is the hardest part, IMO.

  On 8/24/07, JOHN SOLIDAY <johnsoliday at<mailto:johnsoliday at>> wrote:
  > I haven't opened my up yet, shouldn't be so lazy and look at the service
  > manual somewhere here in the new house.  Is it like a ZX10 (88), I did those
  > w/o any problem (not shim under bucket).--
  Utah Jeff
  '96 SheePz1100

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