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WYJ IDLE ADJUSTMENT PROCEDURE (WYJ WITH IDLE SCREW) 1. Start engine and place throttle in the idle position. 2. The black idle needle is preset to a I turn open setting. Adjust this needle to a good optimum idle setting. 3. Repeat step 6. and shut off engine. NOTE. Do not attempt to adjust the inner idle needle.
All manual are in pdf format - Chainsaw Carburetors & Trimmer and Blower Carburetors.
Walbro WYJ Carburetor Manual. Barrett Small Engine. 296 subscribers. 128 views 1 month ago. ...more. For repair and rebuild of Walbro WYJ carburetors use K20-WYJ complete rebuild kit or...
The WY has been calibrated and the idle needle preadjusted by WALBRO prior to shipping to our customer. If the idle is in need of adjustment, the following instructions should be adhered to. Special Note: Only adjustments to the outer idle limiter and idle adjustment screw are to be made.
13 maj 2012 · Connect in carb with primer bulb on the return side of the fuel system, inlet direct from fuel tank filter, and won't pump fuel. The bulb eventually ends up 'flat' and inflates again when pipe is disconnected.
This document provides information on diaphragm carburetors from Walbro, including: 1) It discusses the basic components found in Walbro carburetors like the fuel metering system, butterfly valve carburetors, and venturi operation. 2) Troubleshooting tips are provided for issues like hard starting, idle problems, poor acceleration, and more.
WYJ IDLE ADJUSTMENT PROCEDURE (WYJ WITH IDLE SCREW) 1 . Start engine and place throttle in the idle position. 2. The black idle needle is preset to a 1 turn open setting. Adjust this needle to a good opt mum idle setting. 3. Repeat step 6. and shut off engine. NOTE: Do not attempt to adjust the inner idle needle.
