Stihl FS55 line trimmers use a flex shaft and sleeve and that combination causes vibration when not correctly maintained. Here I show you the process to change the sleeve and luricate the shaft as part of regular small engine maintenance on these 2 stroke engines! TOOLS I USE: Engine Tachometer - https://amzn.to/3TE48GZ Mityvac Pressure & Vacuum Tester - https://amzn.to/3vysI3V Gasket Maker - https://amzn.to/4bIiygR Vessel Screw Drivers - https://amzn.to/3ISewG2 Brass Hammer: https://amzn.to/3xkyuH6 Stanley Stump Vice - https://amzn.to/3waHuOw Stens 750-120 Carburetor Adjustment Tools- https://amzn.to/4atkBV5 Powerbuilt- backtap - https://amzn.to/49I9305 Forceps - https://amzn.to/4a2ud9v Zoom Oil Bottles - https://amzn.to/3TWZV2t Mityvac Compression Tester - https://amzn.to/4aimaFS Bondhus Hex Keys - https://amzn.to/3J2m8FL Klein MM400 multimeter - https://amzn.to/3PI3Y02 Stahlwille Combination Spanners - https://amzn.to/3IY6fQI Milwaukee 12v Impact Driver - https://amzn.to/3VEuxH4 Milwaukee 12v Impact Wrench - https://amzn.to/4aPESVd Milwaukee 12v 90 degree Grinder - https://amzn.to/4czLiJp No-spill gas can - https://amzn.to/3TDfWcb Any links to products are likely to affiliate links and I may earn a small commission from qualifying purchases with no additional costs to you. Thank you! #stihl #husvarna #2stroke #smallenginerepair #stihlfs55