I have a 1982 Kawasaki Police 1000. The bike has been in storage for many years. I restarted the engine recently. It started and ran fine. However, after idling for a few minutes gasoline started coming out of tubes connected to the carburetor assembly. It seems that these tubes (4 of them; one for each carb) are intended to carry out the fuel overflow. I have never seen a system like this and I don't know what to do about it. Any suggestions? Thanks. Amir Kamouneh
First off, does this motorcycle have a kickstarter on it? If it does, it's not a 1982 Kawasaki KZ1000-P series. Sounds like what you're describing is a earlier model called a "C" model. What you're seeing is fuel leaking past the float valves and draining out of the overflow hoses. The fix is to either clean the float needles/seats if they're dirty or replace them if they're worn. The parts are available from K&L supply much cheaper than your local Kawasaki dealer would get for the OEM parts. The downside is K&L only sells to dealers so you will have to go through a dealer for the parts. Beware of unscrupulous dealers that charge Kawasaki prices for K&L parts, that's some major price gouging going on there. I think the price is around $25 per kit per carburetor. If they're charging you more than that, email me back and I will check on the price for you.
I had a situation with my '93 kz1000p. The bike was running fine for about an hour, and suddenly at idle it started dying. If I kept the throttle up, it would run, as soon as I released it, it stopped. Any clue?
That problem could have a thousand answers, but I will try to cover a couple of them. If it runs fine everywhere but at idle, loads up and dies, you either have a stuck open float valve in the carb or a bad diaphragm on the fuel petcock. You can pull the spark plugs out and inspect them, whichever one is sooty black is the cylinder with the problem. If it's the #2 cylinder (from the left) could be either a float valve or diaphragm. Any other cylinder would just be the float valve (assuming that the vacuum hose to the petcock is connected to the #2 carb). Usually when the float valves are sticking the fuel backs up into the airbox and drips out the bottom (as long as the drain hole isn't plugged).
It could also be an electrical problem; those usually cause two cylinders at a time to quit working. You just have to listen to it and figure out if it's running on 2 or 3 cylinders. Also you can pull the two outside plug wires off to see what that sounds like (will only run on two then). The ignition system has two coils, one fires #1 & #4, the other fires #2 & #3. The rule of thumb here is two dead cylinders is electrical, one is carburetion or mechanical. Hope this helps you.