...idle screw adjustment issue, it is a mixture screw adjustment issue, unfortunatly there is a special tool to adjust the mixture screws, pt no. 530035560 ( available from Hysqvarna dealers ) once you ...
...idle,then adjust low speed mixture screw in or out so you get the highest idle.keep lowering the idle so as you adjust the screw,it wont get it any higher in revs.so by now it should idle.next,open ...
rpm,HI at high rpm.H & L should be 3/4 to 1 1/2 turns out from a lightly seated position.adjust for best rpm's at Lo,then Hi.turning idle screw in too far would not affect starting,only idle speed
...adjust when the engine is at idle, the high speed screw (H) you adjust while the engine is running with a good bit of throttle. Once you get the idle speed where you like it, then all you have to ...
start cutting. Allow to idle and adjust L for smooth idle, but rich enough to allow the engine to 'follow the throttle'. Set idle speed screw to just allow the chain to stop moving. clockwise for lean
idle required. With all the modernization happening, there might not be a high or low adjust as they are ported inside the carb. You might get just the high or just the low adjust needles. I hope this
...from idle to half throttle, the H screw will adjust the fuel mixture from half throttle to maximum throttle, this will also control the maximum revs, the T screw is the tick over or idle adjust ...
...adjust the high speed screw at idle, turning it just slightly in or out. The high speed screw should be adjusted so that the engine does not run clean at wide open throttle but sputters slightly, ...
idle. For 2 screw carbs H & L screws adjust the L screw first until it idles and does NOT stall or hesitate when you MAX the throttle. Then adjust the H screw until you get MAX speed. Re-check for
...adjust your idle jet to 1/2-3/4 turn open from the bottom seated position.Then you will re-adjust the low speed of the engine when the engine is warm by turning the idle screw in or out till the ...
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