Maintenance & Technical > KX500 Original

New Pipe or Rad Valve Question

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kaw rider:
it seems that pro circuit platinum is a great choice.

dmazz71:
Thanks

Goat:
A cheap power adder is the reed spacer that JFab makes. I didn't think it would do much so I made my own out of 1/8" aluminum. My engine is bone stock minus the PC pipe and Turbine Core Silencer. I felt a difference throughout the rpm range and it wasn't so choppy. I plan to get the 1/4" spacer from JFab eventually.

Motorrad:

--- Quote from: Goat on April 20, 2011, 04:51:06 PM ---A cheap power adder is the reed spacer that JFab makes. I didn't think it would do much so I made my own out of 1/8" aluminum. My engine is bone stock minus the PC pipe and Turbine Core Silencer. I felt a difference throughout the rpm range and it wasn't so choppy. I plan to get the 1/4" spacer from JFab eventually.

--- End quote ---

If he is unhappy with it signing off early.... a 
Reed spacers are great for woods guys... 
Not so good for open desert and dunes...

oic0:
I wish there were dyno charts for all the pipes.... but if it hasn't happened in 20 some odd years, its not going to happen.
Regardless though, I just want to be sure you understand that even with a top end pipe its going to sign off around 7000rpms, right about where the magic starts on most two strokes. I do personally like the feeling of the pro-circuit platinum over my gnarly though. Just "feels" right lol. Really snappy on the top end.

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