Question about 2000 kawasaki ZX-9 R Ninja

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1999 Kawasaki ZX9R I have cleaned all carbs, checked all jets but I only have fuel coming out of 1 and 2. 3 and 4 get fuel at open throttle. all ports are open just like 1 and 2.

Pilot screw makes no difference either way. beating my head against the wall, help, please

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Hi, Michael sounds like you may have clogged transfer ports that external cleaning is not removing or there is a choke issue on 3&4 you may want to try a carb dip (very effective) and a carb sync. For more information about your question and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Posted on Dec 29, 2016


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Posted on Jan 02, 2017


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1998 Kawasaki Vulcan 1500 carb tuning

Hi, Mark if you have changed your fuel delivery system, air filter size or flow rate, mufflers or exhaust system or a significant change in altitude your carburetors need re-tuning and if your fuel system (gas tank, filters, fuel valve and carburetor) is contaminated with ethanol sludge, varnish, rust, dirt, water etc. or your bike has been sitting for months or years without running these components must be "PROPERLY" cleaned and reassembled "CORRECTLY" before any adjustments can be made. Tuning your carburetor is fairly simple once you understand the basic principals. You engine is a simple airbox sucking air in and blowing it out, it is finely tuned at the factory for maximum performance once you upset that delicate balance by changing air filters, camshafts or exhaust systems your performance may go down the and the engine may run poorly, you need to compensate the air-fuel mixture in the carburetor in order for the engine to run smoothly and at peak performance. If you are running multi carburetors you need to sync them first and make sure your air cleaner element is clean and dry for paper elements or lightly oiled for foam and meshed elements and properly installed. Here is how and where you compensate trouble: "TIP" if your engine "BOGS" your not getting enough fuel.
1. Closed to 1/8 throttle is managed by the air screw and pilot/slow jet.
2. 1/8 to 1/4 throttle is managed by the air-screw, pilot/slow jet, and throttle slide.
3. 1/4 to 1/2 throttle is managed by the throttle slide and jet needle.
4. 1/2 to 3/4 throttle is managed by the jet needle, needle jet, main jet, and air jet.
5. 3/4 to wide open throttle is managed by the main jet and air jet.
6. Wide open throttle is managed by the main jet.
If you are running lean, spark plug electrode color is white, engine runs hot and feels like it is starving for fuel you need to go up on the jet size or move the c-clip down one notch. If you are running rich, spark plug color is black or dark gray, the engine runs cool, and bogs down when accelerating you need to go down on jet size or move the c-clip up one notch. When your carburetor is properly tuned for maximum performance your spark plug electrode will be a light tan color like coffee with cream. If you prefer fuel economy over performance you can go down on main jet sizes until a satisfactory level of lower performance is acceptable versus MPH, your spark plug color will be whiter and your engine will run warmer. These tuning adjustments will only make improvements if your intake and exhaust system have no air leaks or sealing issues and the entire electrical system is in proper working order and you have no mechanical issues.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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1 Answer

Having fuel issues with my 1999 zx9r, i have already cleaned entire fuel system, bike will crank if i put my hands over air intake on carb, any suggestions?

Hi, Michael # 9 and 10 are jumping up and down waving a red flag and yelling "PICK ME" otherwise the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting screw set too low.
8. Air/fuel mixture screw set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
11. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the links below. Good luck and have a nice day.
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If there is a back panel on the machine you can access it from there, if it has a enclosed back then you will have to lean the machine backwards against the wall to get underneath to access it. The pump has two wires attached to it make sure the power is off & lead removed from wall before you unplug them otherwise you get zapped. The drain pump is held into the pump casing/housing by three Phillips head screws. Undo the screws remove old pump and replace with new pump, make sure rubber seal is on the new pump before installing. You will need a torch & a Phillips head screw driver.

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How do you remove single pane windows and replace with double pane insulated windows on a existing brick home?

Read manufacturer directions thoroughly. Measure smallest height and width dimensions of existing aluminum window frame for rough opening at several locations. Order retrofit window 1/2 inch smaller on each side. Remove old glass and center aluminum stave. Trim fin of new window as little as possible so it fits against outside face of confined edges of outside facing part of existing frame. Drill holes in frame as manufacturer instructions dictate. Test fit window and mark where outside trimmed fin ends on wall. Measure for shims at gaps between new and old inside frames. Install shims with Lock time PL caulking. Caulk existing window frame corners, holes from removing center stave, and a 1/2 inch bead within the area marked on exterior wall. Place window and push into caulk. Make sure there is full contact with caulk. Drill pilot holes at screw locations drilled earlier, Place silicone caulking on screw heads and screw window in place. Square up window while screwing. Trim inside of window and plug holes from screws. Good luck.

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1 Answer

My 2004 Vulcan Classic 1500 won't idle.

is the carb jetted? if so check to make sure it has the right size jets. too small of jets starve the engine of fuel, and too large flood it. also there should be 2 jets one main jet which controls the amount of fuel when at 1/4 throttle to fuel throttle and then there should be a second which would be the pilot jet that controls idle mixture (1/4 throttle and less) it's longer and thinner than the main jet with multiple holes for mixing air and fuel for idle. have them to make sure the jetting is correct. Also IF the engine had been bored you will need to use larger jets for the added volume in the cylinder chamber from the boring. aftermarket exhausts will also cause the engine to be rejetted but usually the sellers will have charts telling you what jets to run with the exhaust.

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99 kawasaki kx 125 2-stroke wont start or stay running, but when push started with wide open throttle it willl run and continue to run until throttle is let off or under 1/4 throttle. I've pulled the...

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