Question about 1999 kawasaki ZX-6R Ninja
Hey.. Time for a qualified professional to take a look at your fuel system... First, there is NO reason to "jet an engine high" unless there has been extensive modifications...(and ones that actually work!!!)... have the PROFESSIONAL clean and set the carbs... the gas in your oil is coming from the carburetors..
PLEASE take this entire bike to a PROFESSIONAL.. let them FIX it.. and TELL them about the jets.. they know what is correct..let them FIX IT!!
Posted on Sep 04, 2017
Suspect worn needle valve & seat assembly !---Quick test , with care>Whilst riding on open road &holding throttle at set position, switch off fuel supply & note IF engine speeds up, IMMEDIATELY Back off throttle, watch rear vision mirrors for traffic behind & switch on fuel supply!---If that small test indicates Carburettor area of further examination, UNLESS YOU ARE QUALIFIED the needle valves need to be examined byTrained eye!-(Especially wear on sides of needle valve & ALSO, check "floats"Stay Upright Des
Posted on Jan 17, 2009
general rule of thumb is to go up about 10 jet sizes,unfortunately it is a bit of trial and error,and you may have to swap out diferrent sizes to get the bike running right,(jets are quite cheap though)but first step about 10 sizes from standard,your local dealer should be able to tell you what jets are in it and supply replacements,if you change to a hgh flow aftermarket air filter you may have to change jet sizes again as changing the filter may effect the mixture ratio in the carbs,,hope this helps
Posted on Jul 10, 2009
SOURCE: my ninja loses power in the wind
Do you have a "RAM AIR" system on that bike, if so that may be what happens when you ride into a headwind. The bike may be running a little lean and with the extra intake pressure goes too lean.
Posted on Jun 16, 2009
Well there only one way the fuel can get into the crankcase and that's from the fuel tank. The petcock must be draining and the float needles are not stopping the fuel flow. Do you have a prime position on the petcock? If so do not run the bike in the position. Try topping the tank off with gas and letting it sit for a while and see is the gas has gone down and then check the crankcase and see if there's fuel in it again. i still say its got to be your petcock.
Posted on Sep 29, 2009
Testimonial: "I will try it, thanks!"
Sounds like fuel starvation, remove airbox lid and check the slides in the carbs are not stuck, this sometimes happens when the fuel in the carbs becomes old and forms a stickey bond between the needle and main jet diffuser, you may benefit from a complete overahaul of the carbs again, 2 years is a long time, and i would not find it unusual to do this anualy unless you continue to use the bike, remove the slides and check the diapram condition for holes, remove the mainjets clean, allso the pilot jets and clean them using a wire from a wire brush push through the jet twisting and pusshing, also blow out the holes the jet screws into, remove the float valves and clean them with some wire wool taking care not to damage the rubber tip, and the valve seating should also be cleaned,
Posted on Feb 19, 2011
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