WYJ - Walbro
Idle Adjustment Needle: Fine tunes inner idle needle. This needle is preset at I turn open by manufacturer. Inner Idle Needle: Controls fuel delivery at idle, part-throttle and wide open throttle positions. Throttle Barrel: Regulates amount of air allowed to mix with fuel at idle, part-throttle and wide open throttle positions.
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www.walbro.comthrottle valve assembly inner idle needle wya at wide open throttle atmospheric vent bulb idle just screw upper throttle bore lower throttle bore
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www.walbro.comSERVICE MANUAL 19 WYK series 15 25 27 Part Name Boo,' Assent'ly Pump Assembly - Start Air Purge " O Ring Needle O'Ring-stan " O Ring ORing-stan Cover Primer Pump Valve Assembly - Throttle ... CASS CITY, MICHIGAN Walbro Engine Management Aftermarket Division . …
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www.walbro.comIdle Needle HIGH SPEED NEEDLE ADJUSTMENT High Speed Needle NOTE: Special care must be taken when adjusting the high speed needle. An over-lean setting can severely damage an engine. Refer to owners manual for additional instructions. 1. With the high speed needle at 11/4 turns Open the engine should run at w,o.t. at a slightly richer condition. 2.
ROTARY VALVE DIAPHRAGM CARBURETORS - …
www.walbro.comROTARY VALVE DIAPHRAGM CARBURETORS Walbro US Sales Office Email: sales@walbro.com Walbro Japan Sales Office Email: asiasales@walbro.com Walbro China Sales Office Email: chinasales@walbro.com
Valves, Diaphragm, Rotary, Carburetors, Rotary valve diaphragm carburetors
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www.walbro.comWALBRO Page 1 TRIMMER AND BLOWER CARBURETOR SERVICE MANUAL 20 25 Form C. 1041 26 WYL series Part Name gody Assembly - Pump Body Assembly Air …
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www.walbro.comWALBRO MODEL WA DISASSEMBLY 1 Remove fuel pump cover screw and pump cover. 2 Remove fue pump diaphragm and fuel pump gasket. 3 Inspect diaphragm for flatness and continuity.
Walbro
www.walbro.comcarburetor tools is a must for every service man engaged in the repair of Walbro diaphragm carburetors. It contains everything needed for proper repair and will pay for itself many times over. The tools are designed to cut labor costs and to reduce the risk of …
FLOAT CARBURETORS - Walbro
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www.walbro.comWAI-BRO WYL CARBURETOR COLOR CODE - Fuel - Crankcase Pulse WYL OPERATING FUNCTIONS 4. 5. 6. 10. 11. 12. 13. 14. Throttle Lever Ass'y: Controls throttle barrel ...
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