bike loosing power..any ideas?

kawasaki dude

New member
hello...morning guyz...i need serious help...
yesterday i was riding on highway and found out my bike is loosing power....rpm rises but power doesnt as supposed to...for example on 4th gear at 8000 rpm i used to get 80 KMph...but now it barely passes 60...wadda hell is going on!
i put some carburetor cleaner with gas day before yesterday and this is happening from yesterday...is it the carb cleaner...i have not checked the air filter yet but i replaced it 6 months before....checked the spark plug , was in good condition, brownish...am scared about cleaning the carbis as i donno how to sync them after cleaning ....what else i should be looking for....ma fnd told me to check the battery and i found out some rusts on the positive side( salt build up from battery fluid).....ma bike is kawasaki ex250h6 aka zzr 250(1995)....any informations would be helpful...thanks ..
oh i almost forgot...it gets and loses power like within a sec...seems like i am going forward and something pulling me back again...it does like this....and today i braked and the rpm was rising and going down at the same time ! i am really sad about the bike doing this...i reallly love this bike ...please help...and how do i fix clutch sliping!
 
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