MDS2106 Posted July 13, 2007 Report Share Posted July 13, 2007 I think it was a yfz 450...... Quote Link to comment Share on other sites More sharing options...
racer Posted July 16, 2007 Report Share Posted July 16, 2007 I don't know the elevation of Seattle, but if you are anywhere near sea level with 18cc domes, keep the 114 octane race fuel... Do you know off hand what your compression is? well since it's a port city............ha Quote Link to comment Share on other sites More sharing options...
kfngrn Posted July 26, 2007 Report Share Posted July 26, 2007 imo yes you can hurt your preformance running too much octain but i still havent found the magic system that says " with this compression and this timing you should be running this octain fuel" it's pretty much as stated before, trial and error. the cheeper you get the more you start experimenting with lower octain mixes. i personaly use a 50/50 mix of 110 and 92 which in theory puts me at 101 but more like 99-100 in actuality. bike has +4 timing and 160 compression and runs great. I totally agree! I have run straight 110 in my bike with 165-170psi and +4 timing and when I have it just does not run the greatest. Seems more sluggish. I normaly run 50/50 mix of 110 and 92. My .02 cents Quote Link to comment Share on other sites More sharing options...
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