4s cam

I

Ian James

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• Apr 16, 2025

• #1

please tell me

 

baz

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• Apr 16, 2025

• #2

Thread '2S, 3S, 4S Cam Ramps - design philosophy. Read this if you have one!' https://www.accessnorton.com/Norton...n-philosophy-read-this-if-you-have-one.38585/
Does this post help?

 

D

dero

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• Apr 16, 2025

• #3

My only cam experience is std then 4S , love the 4S . Road bike , 920 , mild head work , aprox 9 : 1 comp .

 

baz

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• Apr 16, 2025

• #4

dero said:

My only cam experience is std then 4S , love the 4S . Road bike , 920 , mild head work , aprox 9 : 1 comp .

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Are you running the standard carbs/exhaust?

 

D

dero

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• Apr 17, 2025

• #5

Std exhaust & 35mm flat slides .

 

Fast Eddie

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• Apr 17, 2025

• #6

dero said:

Std exhaust & 35mm flat slides .

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Good combo !

 

I

Ian James

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• Apr 18, 2025

• #7

baz said:

Thread '2S, 3S, 4S Cam Ramps - design philosophy. Read this if you have one!' https://www.accessnorton.com/Norton...n-philosophy-read-this-if-you-have-one.38585/
Does this post help?

Click to expand...

Thank you Baz I now have an inkling as to why I have a pulverized exhaust valve seat , head , piston and valve. The good news is that the cylinder is unmarked. some times you just get lucky .