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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.
Please read the following instructions for correct adjustment of the WYJ at the idle position. WYJ IDLE ADJUSTMENT PROCEDURE (WYJ WITH PLASTIC PLUG) 2.
9 maj 2019 · The small filter on the fuel-intake side clogs. Clean it out by removing and spraying carb cleaner through in the opposite direction of normal fuel flow. Re-insert using a pencil eraser. The float diaphragm degrades and reap havoc on tuning, especially the low end and idle.
13 maj 2012 · Connect primer bulb to direct to supply and filter and pumps fuel perfectly, so I assue filter and primer are ok. 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.