Where are the numbers on a Walbro carb?
The Walbro part numbers and letters can be found next to the adjustment needles on some of our larger models like the HDA and HDB series carburetors, and near the fuel inlet fitting on our WT and WA series.
Where is carburetor part number?
The list number is stamped on your carburetor, either on the corner of the airhorn or choke tower or, if it doesn’t have an airhorn, on the mainbody. Remove the carburetor from your vehicle before looking for the list number to easily find the information you need.
How do I know what CFM my carburetor is?
How to calculate Carburetor CFM. The formula for calculating how much CFM (cubic feet per minute) your engine requires is: CFM = Cubic Inches x RPM x Volumetric Efficiency ÷ 3456.
Are Walbro carbs good?
Only good thing is the carbs are dirt cheap to replace when they foul up. And they will foul up no matter how picky you are with fuel quality. Zama is owned by Stihl or part owned by Stihl and has their main factory in Japan. They are excellent carbs,no better or o worse than the equivalent Walbro.
How do you adjust a diaphragm carburetor?
Start the engine and allow it to warm up for a few minutes. Do not try to adjust the carburetor before the engine warms up as settings change while the engine is warming up. Begin with the L needle, turn the needle in clockwise and listen to the engine as you do so.
What size carburetor do I need for a 350?
A 600-cfm carburetor may perform quite well on a stock 350 Chevy. However, the minute you start weaving in power adders like a hotter cam, a dual-plane performance intake manifold, and aluminum heads you’re going to need 700-750 cfm.
How do I identify my Zenith carburetor?
Zenith carburetor produced after about 1980 will not have the round tag, but will have a tiny number stamped (never raised) in a semi-circle on the body of the carburetor. Some Zenith carburetors produced in the 1920’s up to about 1935 have a long thin rectangular tag with the Zenith number stamped.