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Old May 14th, 2022, 02:08 AM   #1
petrolhead
ninjette.org member
 
Name: Jarno
Location: Finland
Join Date: Aug 2021

Motorcycle(s): 2009 Ninja 250R

Posts: 83
250 camshafts

I'm looking for data on Ninja 250R cams, pretty hard to find. Our bike is 2009 FI.

-Is the inlet cam higher lift/duration than the exhaust? By what amount? I read this somewhere. Apparently they are interchangeable?

-Do earlier generation motors have more lift/degrees? Atleast they make more power. Do they fit on a 2008-12 engine?

-How much can a stock cam be ground before one runs in to issues with valve adjustment (decreasing base circle)?
I have browsed through various topics here but solid numbers are eluding me.

Merge/delete/lock/ban if it's been discussed.

-Jarno

Last futzed with by petrolhead; May 14th, 2022 at 06:19 AM.
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