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Camshafts B1 vs A1/3 27 Dec 2021 20:28 #859698

  • Bozo
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I am using GPZ1100A1 to 3 model camshafts on my GPZ1100B1 Head. I have standard pistons, valves with APE springs. My Question is there any cam timing I have to do to use these camshafts. I just did an engine leak test and all four inlets are leaking and I want to make sure the cam timing is not the issue.
First Permanent ride the Z1R since Dec1977 (220,000km) as of June 2015
Second permanent bike 1989 FJ1200 my work horse, growing on me, great bike.
Third ride is now the Frankenstein GPZ1100, now if only I can ride three bikes at once?

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Camshafts B1 vs A1/3 28 Dec 2021 05:21 #859707

  • zed1015
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The GPZ1100A cams are 110 degree lobe centers as stock which is the same as all the others so that shouldn't be the issue.

 
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Camshafts B1 vs A1/3 03 Jan 2022 01:39 #859964

  • 577nitro
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Try lapping the valve seats,  worked for me, no more leaks.

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Camshafts B1 vs A1/3 03 Jan 2022 08:59 #859975

  • daveo
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Regarding 83-85 GPz camshaft use in KZ engines, consider the following post from one highly respected and sorely missed KZR forum member:

kzrider.com/forum/2-engine/596933-can-i-...gine?start=24#661583
1982 KZ1100-A2

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