[Somchai]

Originally Posted by C-Bass

I have considered raising the compression ratio of my 2012 Ninja 250, but the stock compression ratio is already fairly high at 11.6:1. For street use I question if the minor performance gain is worth the reliability hit - the engine will definitely run hotter.

Instead I have been looking at installing drop-in performance cams. Daniel Crower Racing and Web Racing makes these. Should provide about 10% more peak horsepower over stock, and should complement the Yoshimura full system exhaust nicely -

http://danielcrowerracing.com/i-5935...t-2008-14.html

http://www.webcamshafts.com/index_bl...le_search.html

You should get an ignition advancer, it's one of my best mods I've made.
Partno. is RTR-KAW-5-05 and you'll find it here: http://www.factorypro.com/prod_pages/prodk04.html

If you need more informations about it just ask @marc99
Good luck
By the way, with this mod the temperature of my Ninjette went down by around 8 degrees celsius, what's good here in the very hot environment.