Join Date: Apr 2014
Firstly, a stock air filter requires oil in it to work properly that's how it traps dirt particles that would otherwise enter your engine. So put some oil back in it just enough so when you squeeze it it doesn't drip any more. Secondly, a 250 is not a high performance engine. I repeat, is not a a high performance engine and doesn't need 95 octane. 87 octane will do just the same. Save your money. The only additive I would use is a recommended amount of fuel system cleaner like techtron. Sounds like your pushing your bike pretty hard? Are you redlining ? If you are then your engine will suffer! Clean or use up your current gas, refill with new 87 octane. If your talking about your bike under performing a ZX6R ninja well of course, the 250r will never run with one! Don't endanger anyone else or yourself with your riding habits.
Last edited by TurtleSE; 09-16-2014 at 10:00 AM.