![]() If you hear that sound, that is a good thing and then you should look back down to the carb and see if it is still coming to wide-open throttle.Ģ.Sometimes its throttle cable is stretched so much that even you adjust the slot that way does not work anymore. So if it is coming down all the way pull that trigger until you are squeezing it as hard as you can and you might hear a little click click click sound from the handle and it is that little slot down there might move a little bit. Sometimes you might still feel like you have some trigger to pull, that is what the little slot in the handle is for. If it is coming back down there all the way, you are having wide-open throttle. Now you can check if the throttle lever is coming all the way back down to where it should stop there. What you want to do is stick your carb adjusting screwdriver in that smaller slot and push down on it, you will feel it spring down a little bit, and then push that back as far as you can until you feel lockdown there. You can see there is a little slot inside the handle and there is a smaller slot in the slot, which a little carb adjusting screwdriver or a flat screwdriver can fit in perfectly. STIHL has provided you with 2 different options to adjust the cable, so your unit will come back down to wide-open throttle.ġ.You need to focus on the handle where your palm goes down on the handle when you are using it. Because it is not opening up your cable that has stretched. If the lever is not coming all the way when you pull the trigger and leave there a big gap to wide open throttle, your trimmer will only go half-speed. Then look at the carburetor and pull your trigger, and see if the lever is going down all the way to that stop. Diagnoseįirstly, you need to turn to the back side of the trimmer where your fuel cap is and where you fill your fuel in. Here is 1 simple way for you to check it and 2 different ways for adjustment. But if carb adjustment or replacement does not still make it run as it was when you bought it, there may be something wrong with your throttle cable. It reminds you that you should adjust your carburetor. If you are unable to do this procedure, then you could order a replacement carburetor, or better still, if you are still under warranty, arrange for your machine to be collected and repaired by our workshop technicians.You may find that your trimmer is not running as fast as it used to when you are pulling the trigger. ![]() The screw should be turned anticlockwise until the machine struggles to rev to max rpm (revolutions per minute), then turned slowly clockwise until the engine picks back up to max RPM.To adjust the H screw the machine needs to be run on full throttle whilst adjusting the screw.Firstly turn the L screw until the engine ticks over comfortably without the strimmer engaging.There are 2 adjustment screws on the carburetor, L which refers to low speed, and H which refers to high speed.Tools needed: Carburettor adjustment 'pacman' tool Please contact our helpline if you think you are unable to proceed: Doing this wrong could make the problem a lot worse. This is a procedure which requires a high-level of mechanical skill, so please be wary before trying it. It is quite likely that your carburettor settings need adjustment in order for machine to engage in idle speed properly again. Fuel cap: Make sure it's hand-tight (not too tight or too loose). ![]() Air filter: Make sure it is clean and unclogged.Fuel: Make sure it is fresh and correctly mixed (see 'Starting Issues').If the engine is not running at idle speed and cuts out when you release the throttle trigger, then you need to do the following checks: This article will cover the soft fixes you can take if your hedge trimmer is not idling. ![]() Modified on: Fri, 30 Apr, 2021 at 3:16 PM Solution home Petrol Hedge Trimmers Petrol Hedge Trimmer Troubleshooting My Petrol Hedge Trimmer will not idle
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