fzr6andy

thanks for the advice guys. ill give them a ballance.

hi every one , a year ago i bought a crashed fzr600. ive rebuilt and all the way through started every week and kept on an optimate. now its ready for an mot and it wont pull above 6 thousand when being ridden . i have cleaned out all old fuel from carbs and tank i have checked spark on all cylinders and all looks good so at a loss. advice please !