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Old November 19th, 2011, 08:48 AM   #60
cbdallas
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Name: Charlie
Location: Wylie, TX
Join Date: Nov 2011

Motorcycle(s): 2007 Ninja 650R

Posts: 317
The 2K - 6K problem cleared up when I replaced the #4 washers with some tiny neoprene ones that fit snugly under the needle heads. I think what happened was the steel washers lodged in the retainers at an angle, trapping the needle where the head wasn't seated at the top of the retainer like it should be. When I pulled the springs out, the needles and washers came out with them. Everything's solved now...running great. My mixture screws are still sealed, so I won't be messing with those unless I experience a running problem. I really don't want to take the carbs out.
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