How do you set Keihin carbs?
Start turning air screw counter clock wise, ¼ turn at a time until you have reached 2 ¾ turns out. Between 1 ¼ and 2 ¼ turns, your engine should have reached its highest RPM maintaining a steady throttle. Adjust air screw again between 1 ¼ and 2 ¼ until you have determined highest RPM.
How do I identify my Keihin PWK carburetor?
Find the serial number near the bottom of the CDK carburetor. Write the number down. Call one of the distributors listed on the keihin-us.com website and give them your serial number. Distributors keep track of serial numbers and will be able to identify your particular carburetor.
How do I know what size carb jet I have?
Jets are threaded and have a small orifice through their center that varies based on the size of the jet. For example, a jet may be stamped (on its head) with the number 30. This indicates that the jet’s size is 30 mm.
How is carb size measured?
The measurement is the diameter of the bore at the throttle plate; or in other terms, the diameter of the throttle plate itself. The bore of the venturi and the inlet may also be indicated since they have a correlation to the performance parameters of ther carb just as much as jet and needle sizing does.
Where can I find a list of Keihin carburetors?
Visit Keihin’s website at keihin-us.com and access the products page. This will pull up a list of carburetor models on the left side of the screen. Click the models until you find the picture that looks like your model.
How big is the jet needle on a Keihin carbs?
1/4 to 3/4 throttle jet needle: the jet needle ( #2 in illus.) is comprised of five major elements. 1. straight diameter section: in keihin carbs either the last two digit or the last letter denote the diameter of the needle.
Where is the air / gasoline adjustment screw on a PWK carburetor?
Air/gasoline adjustment screw: the carburetor pictured in the exploded view uses an air adjustment screw ( #5 in illus.) in that it is located upstream of the throttle valve (slide) and meters air; turning it counter-clockwise leans the mixture off idle.
Who is the owner of Keihin fuel systems?
Griffin’s medical expertise encompasses bariatrics and geriatric care, with an emphasis on general medicine. She is completing an associate degree in health-care administration from Axia University. Keihin Fuel Systems is a large manufacturer of carburetors for racing vehicles such as dirtbikes, watercraft and motorcycles.
Can a Keihin carburetor be used with normal gasoline?
Tuning. Keihin carburetors are designed to be used with normal pump gasoline. Fuels that contain over 10% alcohol content may damage parts in the carburetors. This may prevent the carburetor from functioning properly.
What kind of jet does a Kawasaki carburetor use?
On the CVK40 it consists of a collar and what Kawasaki calls a holder. Most 4-strokes have pin holes along the length of this brass jet. These pin holes allow air from the air jet to premix with fuel from the fuel jet to start the mixture emulsification process before it enters the venturi. Primary type carbs use a solid jet, (no pin holes).
Where is idle adjust knob on Keihin PJ series carbs?
This is especially important on Keihin PJ series carbs in that the idle adjust knob ( #4 in illus.) cannot be completely closed. Such an adjustment will result in a sluggish response off idle.
Air/gasoline adjustment screw: the carburetor pictured in the exploded view uses an air adjustment screw ( #5 in illus.) in that it is located upstream of the throttle valve (slide) and meters air; turning it counter-clockwise leans the mixture off idle.