Why does my 2007 Kawasaki ZX6r boggs down at high RPM. After changing the fuel pump and filter it ran great for about 30 miles. Then it wouldn't go past 65 mph. Now it will not go past 45 mph.

SOURCE: KLX 125 sat for 2 years, carb removed, cleaned,

have u cleaned the reed valve out?

SOURCE: It cuts out at high rpm but the plug is fine.

Pull the spark plug. If the porcelain cone is whitish then change the main jet to a higher number i.e.. 178 original main jet changes to a 180 or a 182 if needed.

If the porcelain cone is blackish or sooty then change to a lower number i. e. 178 down to a 175 or 172.

SOURCE: I have 02 zzr 1200 went out to drive it to work

have you checked the breather in the petrol tank
if its blocked it can cause this problem as the petrol gets vapour locked.

Paul G

• 161 Answers
• Posted on May 18, 2009

SOURCE: Kawasaki Z1000 engine doesnt rev more than 5000-6000 rpm, why?

sounds like the cpu is corrupted needs to be re-mapped,  Best to take it in , just ask them to reset it back to default values ,
cheers

SOURCE: Hi, i have problem with kawasaki KVF750 brute force 2008,

sounds like could be exhaust problem. do anything new to it lately? also what kind of gas are you running and what kind of oil and tranny fluid. Check battery terminals make sure they are secure tightly.

Testimonial: "Thanks for answer, exhouse sistem is original, no innovations was doing, gas is 95."