My 09 power mods - Kawasaki Ninja 250R Forum
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post #1 of 1 (permalink) Old 09-10-2011, 02:01 AM Thread Starter
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Join Date: Aug 2011
Location: Living in Thailand, but Home is Linden, NC
Posts: 26
My 09 power mods

Just thought I'd post my 2009 performance improvements that seems to be working pretty good for me.

Area P full exhaust, quiet core, carbon fiber.
Dynojet needles - E-clip on 3rd groove
Main jet #106
Pilot jet #38 - stock
Pilot air screws: 3 turns, but still tweeking, need air meter to balance correctly. Three turns out was recommend by DynoJet.
Removed air box and installed open K&N 0990 air filter
Removed and blocked Kleen air system
NGK Iridium IX plugs - CR8EIX

For a short time I installed #40 Pilot jets, the mid-range power was way better, but low end power and gas mileage was bad. I think the #40 is better suited for track days when I can keep the engine above 4,000 RPM. Below that, the engine blubbers, just too rich.

Last edited by Allants; 12-04-2011 at 12:19 AM. Reason: corrections
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