I noticed a power decrease especially from the dig in 1st today. Yesterday I filled up on some crappy gas station and im thinking that this is what's causing it. What to do? Any advice? I'll be able to ride this bad gas out but is there anything i should do afterwards? Like put some sort of cleaner? Bike got 6k on it. Any advice would be appreciated. THanks.

 

what do you mean crappy gas... if gas is truly crappy, with water say, you power plate will sputter. is this what is happening or is it merely a seat of the pants estimate of loss? If you are getting sputtering it could be a clogged filter or plugged breather. was it higher than e85?

 

sounds normal for a gixxer...
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in all actuality you're either imagining it (I've done this many times) or it's bad gas. Run it through it drain it and put new stuff in...

 

just run it out and fill up with good gas.. imo 1st gear is always choppy to me... good gas or not

 

Check the spark plugs? also check the compression, do the same things you would do if your car is running sluggish.

 

Dude, if your SURE it's smegma'ed out gas, pull the tank and drain it.