An air screw on a Keihin PWL26 only effects the idle circuit of the carburetor.
The idle circuit pulls through the pilot jet exclusively. The pilot jet typically can deliver no more than 15% of the overall fuel when the throttle is wide open.
The claim of 15% is based upon the inside diameter of the pilot jet and the inside diameter of the main jet.
The air ...
It's a gasoline vent tube, serving three purposes.
Gasoline vapors can be especially dangerous under pressure (pretty much why it is useful), and as the temperature fluctuates it is safer to relieve the vapor pressure than it is to potentially have it build up. The gasoline vapors should preferably not be ejected onto a potential spark source (battery) or ...
So why are intercoolers used?
Running the air through a supercharger is going to make it hot and detonation-prone. The primary benefit of an intercooler is that it reduces the temperature of the boosted intake air. This helps keep detonation in check.
The extra density is an added bonus because you can squeeze in more air to make Moar Power.
Does this ...
How do I pull error codes from my Kawasaki motorcycle?
Here are the instructions to pull error codes from your 2001 or later Kawasaki street motorcycle.
Pull off your seat and near the battery negative terminal there will be a self diagnosis lead coming out of a connector. The wire is yellow. It looks like this.
Get a wire, one with ...
There are very simple linkage components that aftermarket companies manufacturer to lower motorcycles. Here is an example of a component sold to lower the Kawasaki ER6.
This is what the shock to swingarm mount looks like with the linkage in place.
This is the appearance of the shock to swingarm mount point without the linkage in place.
There is a hose that connects your air box to this
As stated in comments, this is connection point for a PCV hose. The hose connects to the bottom of your air box that attaches to your carburetors.
This hole allows for crankcase ventilation. Any gasses that should not be released into the atmosphere can be vented here. It should get pulled back into ...
A free flow exhaust requires more fuel to the engine
The baffles created back pressure in your exhaust system that restricted the flow of the exhaust gasses. When you removed the baffles it allowed the engine to 'breath' easier due to the lack of restriction.
Restriction in exhaust systems are designed for several things.
to restrict gasses flowing into ...
We were hoping for a little feedback regarding this issue prior to attempting an answer. A few things come to mind regarding the problem description and we'll run through a few of them for you.
Fuel Filter - Your fuel filter may be impeded and require replacement. Since you have not indicated this happens at higher RPM'...
Your carbs are clogged with varnish and bad gas
The remnants of gas that has evaporated are a gummy hard varnish inside of your carburetors. You have a bit of work to do.
You need to completely disassemble the carburetors and thoroughly clean all of the nooks, crannies, jets, fuel galley's and air galley's in order to get your bike back in working order.
It sounds like your carb(s) are plugged and need cleaned. If the fuel in the carbs has ethanol in it, the carbs are going to be caked with crap. The floats could be ruined. There are a lot of things going on. Getting the carbs rebuilt or at the very least cleaned up, is going to be a must. All of the symptoms you saying are pointing to carb issues.
There is an O-Ring around the base of the mounting surface that rests against the fuel tank itself.
The "O-Ring' that you can see in the picture could be the point of failure.
If you want to be sure and rebuilt the petcock entirely and replace the vacuum valve diaphragm as well as the diaphram body O-Ring you can purchase one of these rebuilt ...
You are describing a lean condition
The more you open your throttle the more vacuum you are creating in your carburetor venturi and your intake manifold. When you are operating at higher RPM any unmetered air leaks into your system can become more obvious.
Unmetered air is air that is getting into your system after the fuel has been delivered. If you ...
The phenomenon of flames coming out of the exhaust of any vehicle is called a Backfire
Basically when you either run rich or lean in the power stroke of the combustion which is not completely burnt , it is sent through the exhaust which obviously being hot reignites with the outside air on contact creating the Backfire effect.
This can be of two types:
The back pressure and flow change of the exhaust will have an effect on the combustion and mixture. Usually with a free flowing exhaust, you have to rejet the carb a little richer and with a free flowing airfilter, doubly so.
Running it without an airbox is making it worse, the mixture is already lean and stuffing more air down the bores isn't going to help ...
This essentially the same answer as your other question related to poor running, thee are instructions on how to pull your Kawasaki error codes. This procedure works for all Kawasaki EFI systems from 2001 to 2015
Need the FI Error Codes First
There multiple possible answers as to why your FI light is on but this is a bit of a guessing game unless you pull ...
A Bad Diode in Your Rectifier Can Allow AC Current into Your System
A bad diode in a rectifier will dump AC current into a system. The AC current heats up the stator and the heat destroys the insulation and ultimately carbonizes it turning it into a low resistance brick. Most stators are three phase AC systems so there will be three diodes in the ...
If your motorcycle had never it's battery changed you should consider it being dead.
Not being able to charge it could confirm the same. You should be having a new battery installed and if you plan on not riding it for long intervals consider a Li-Ion battery compatible with your vehicle (and/or removing the battery terminals)
To answer my own question: I contacted another mechanic with this issue who fixed it in no time. I feel quite stupid now...
The problem was indeed with the fuel line. The fuel line was clogged with some bits of grass that had fallen in during refilling. But it was clogged in such a "creative" way that the fuel pump was able to pull some fuel through it ...
Typically, Kawasaki's have their key code stamped into the ignition switch. Removal of the ignition switch is required in order to view the key code.
I believe with Kawasaki's you be required to have a pin in torx (also referred to as tamperless torx) driver in order to remove the ignition switch.
Where to look:
*On original key--if any.
Anarach has provided a good survey of the Backfire (or afterfire in this case, if you're being pedantic) phenomenon.
I will attempt to add to that keeping it specific to the H2R.
Watch this video, the flames are a lot more exaggerated in this case.
The H2R, is a track-only hyper-sport bike with every consideration given to make the engine produce most amount ...
A Google search revealed several sources for a replacement final drive belt. Getting a replacement should not be a problem. If the current belt is more than five years old or the owner doesn't know how old it is I would replace it soon. The advantages of belt drive are less maintenance, no lubricant is slung off, like on a chain and they are quieter. The ...
Need the FI Error Codes First
There multiple possible answers as to why your FI light is on but this is a bit of a guessing game unless you pull codes using the following procedure. This is a workaround from using the official Kawasaki dealer tool to get your fuel injection related error codes. Once you have collected the error codes you can now begin to ...
I have no experience with your model, but sometimes they are located on the petcock, inside the tank.
Edit: I cannot find old diagrams, but at least ZZR600's some years younger than yours seem to have had those. Oldest diagram I could find at the moment: http://www.motosport.com/SE/motorcycle/oem-parts/KAWASAKI/2003/ZZR600/FUEL-TANK
Its a petrol overflow drain pipe. In case if you fill fuel that overflows it ll be drained through that pipe. it may also have internal connection with a pipe with drains rain water or any water that tries to get into the tank.
It possible to have vehicles that no longer have a VIN despite having one originally since new replacement parts don't have a VIN on them... Motorcycles are worst case since there are so few places the VIN is located to begin with. On a car (with the VIN in a whole bunch of places from the factory), you can easily end up with original VIN parts being ...
Here are the various connections based upon your images.
I have left the label spelling in the image provided the same as the image. They match any misspellings in the three images.
"I don't know" marked inlet is a vacuum line. Your petcock has two lines coming off of it. The smaller one is for vacuum, the larger one is for fuel.
I know this page is around a ZXE600 but it looks like its the same model setup as a ZZR600
-Remove the center bolt (12mm) first. This will release an under pressure spring and pin and copper washer with the bolt. Place aside.
The kit will consist of Metal Rings, Friction Rings and Clutch Springs.
The Metal Rings will have a minimum thickness.
The Friction Rings will have a minimum thickness.
The Clutch Springs will have a minimum unloaded length.
The stack (all the Metal and Friction rings) will have a minimum thickness.
Since motorcycle clutches are multi-plate there are lots ...