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I've had my 1999 kawasaki zx6r sitting in a garage for around 6 months+. i am now trying to get the bike on the road. It wouldn't start off the button but it started by being bumped, when i turned the throttle a fraction it would splutter and cut out. i then left this idol for a while and it got slightly better. since then i have put in a new battery, spark plugs, fuel and the pilot jets were so blocked i drilled them out and the bike started off the button with a backfire in the 8000 revs. if left running it would cut out and not start again unless i emptied the carbs of the fuel so i replaced them. i haven't touched anything else but now the bike won't start unless i give it a long bump and backfires with big bangs and flames from the exhaust. what could this be?
When you drilled out the pilot jet you destroyed it. Even if you have jewelers bits they are to big. One drill bit size is 6 to 10 jet sizes. Replace the pilot jets, you are running WAYYYYY to rich at idle.
Testimonial: "I realised this and have already brought and replaced the pilot jets but still having the same problems. thanks"
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Remove the head of the bike as six years a long period there must b some rust. sprinkle brake oil on the pistons and then simply/softly/slowly move the pistons up down. do not try to start it. once the movement u feel easy then clean the plugs, point etc air clearner/filter check the engine oil and then try to start
Let the bike sit for a bit, try and restart it first. This sounds like you just flooded it. Post again if the problem persists and I can assist you with some further actions.
take carbs apart to clean probably disturbed sediments in float bolws
and now are pluging up jets motors not developing horsepower when its in nutral
easier to rev up
if the bike has a ignition control module when it gets hot it will open and shut you bike off. when it cools down it will close letting the bike start.if you a theift device you may want to disarm it.
i'd start with removing the carbs and giving them a thorough cleaning as when bikes sit for so long, the carbs begin to get gummy/varnished from the old gas.
check for blocked holes in the pilot jet & main jet and look for "hard & dried up" gas in passages. be careful of the float bowl gasket as to not tear it or you will need a replacement.
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