Kawasaki help

[firemanjim]

Got a 2004 ZX 6 636 at the shop for dyno and it runs clean to 10,100 the has a miss and recovers a bit up to redline. 16,000 miles,new plugs, PC 3. Tried disconnecting PC3 with no  change, nothing shows with A/F ratio--it is stable all the way up, tried another ecu and coils with no change,checked fuel pressure and it is good, pulled plugs and inners look as they should--tan---outers are as clean as can be. Weird! Any ideas?

[Johnnnycheese]

nothing may show on A/f but add or subtract a ton of fuel and watch and be careful where you add or subtract it you need to know your lag

[firemanjim]

Stupid me--had this happen to my bike at Bonneville this year and just thought of it. Cam sensor--plugged in it acted like rev limiter at 10,000, unplugged it ran to limiter at 13,500. So started the Kawi, unplugged the cam sensor and wham--nice clean run to limiter.
DOH!!!!